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TRICK 2025
"Episode I"
― Contest Results
Judges:
eto, shinh, yhara, matz, leonid, flagitious, mame, tompng
Transcendental
Ruby
Imbroglio
Contest
for RubyKaigi
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What’s TRICK?
• TRICK is a programming contest that celebrates weird Ruby code
• Example: puts "Hello!"
$> <<
?H <<
?e <<
?l <<
?l
$> <<
?o <<
?! +"
"# YE
$s= %w( p=25;;$-w ?44 1.t imes{|x|$ ><<
"\s $s= %w( #$s )*' ';e val #{p
&&" ?$+ "}$ s;" [(v ="u Eqm bHj
UDQ=nHjUD QmbHJu]wE UrD kjj hUU Emj fhU
UEm jjh JR] C"[ x/1 8+( p|| 0)]
.or d[x /3% 6]) *$. +=v ]+?
\n[ 0,x %63/62]}: puts("Hel lo!")#YE; )*'';eval $s;
Worst (for TRICK)
Good
Great
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TRICK 2025
• The 5th TRICK
– 1st: TRICK 2013
– 2nd: TRICK 2015
– 3rd: TRICK 2018 FINAL
– 4th: TRICK 2022 Returns
– 5th: TRICK 2025 "Episode I"
• This presentation announces the winners of TRICK 2025
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About TRICK 2025
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TRICK 2025 Judges
eto (Koichiro Eto)
shinh (Shinichiro Hamaji)
yhara (Yutaka Hara)
matz (Yukihiro Matsumoto)
leonid (Sun Park)
flagitious (Darren Smith)
mame (Yusuke Endoh)
tompng (Tomoya Ishida)
Media artist
Super hacker & golfer
Esolang book author
1st super golfer
Author of GolfScript, super golfer
Matz
Me
The previous champion [NEW]
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TRICK 2025 Result Overview
• The highest number of submissions ever!
– So, the quality of winning entries is the best yet
– Thank you to all the submitters!
• Blind review
– Judges rated each entry on a scale of (1..10) without knowing the authors
• 13 awards
– 5 medals
– 8 judges' awards
JP
US
KR
4th 5th
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CAUTION
• This presentation contains many spoilers!
– Please leave if you wish to analyze the winners yourself
• The winning entries will be available at:
No k!
http://github.com/tric /trick2025/
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Judges' Prizes
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Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Most Harmful”
『最も有害で賞』
yoshi-taka
leonid award
6 7 3 7 8 N/A 7 5.71
2
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yoshi-taka.rb
leonid award
“Most Harmful”
#==============================================================================
# 作成日 : 2004/01/5
# (Created on: Jan 5, 2004)
# 改修者 : Real Programmer
# (Modified by: Real Programmer)
# 備考 : 自己参照コードを用いた実験的実装
# (Note: experimental implementation using self-referential code.)
#==============================================================================
#----------------------------------------------------------------------
# 関数: goto
# 説明:
# Func: goto
# Desc:
# 引数:
# @iTargetLine - (Integer) 実行開始行番号 (1始まり)
# (Target starting line number (1-indexed))
# @b - (Binding) 評価コンテキスト
# (Evaluation context)
#----------------------------------------------------------------------
strTemp=""
arrLines=[]
def goto(iTaragetLine, b = TOPLEVEL_BINDING)
strTemp = File.read(__FILE__)
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yoshi-taka.rb
leonid award
“Most Harmful”
…
78
79 if(10>i)
80 i+=1
81 puts "increment #{i} times"
82 goto 78
83 end
…
$ ruby entry.rb
increment 1 times
increment 2 times
increment 3 times
increment 4 times
increment 5 times
increment 6 times
increment 7 times
increment 8 times
increment 9 times
increment 10 times
…
Go to Line 78
entry.rb (simplified)
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yoshi-taka.rb
• How to implement "goto 78"
– Directly jumping into if statement is not possible
– However, entry.rb simulates
jumping into an if statement
by abusing a heredoc
leonid award
“Most Harmful”
s = File.read(__FILE__)
eval(s.lines[78..].join)
exit
if(true==bFlag)
<<-goto
goto 40;if fi
goto
end
This line can be
jumped to
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Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Most Shifted”
『最もズレてるで賞』
Yutaka HARA
(yhara)
mame award
7 5 7 7 7 N/A 8 6.33
4
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yhara.rb
mame award
“Most Shifted”
TARGETS = [Integer, Float, String, Array, Enumerator, Range, Kernel]; eval TARGETS
.flat_map{|c|m=(c.instance_methods(false)+c.private_instance_methods(false))
.select{|m|m.to_s=~/\w/}.sort.reverse;m.map{"#{c}.alias_method('#{_1}_orig',
'#{_1}')"}+m.each_cons(2).map{|m1,m2|"#{c}.alias_method('#{m2}','#{m1}_orig')"}+
["#{c}.alias_method('#{m.first}', '#{m.last}_orig')"]}.join("\n")
#--------------------------------------------------------------------------------#
FONT = <
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yhara.rb
• This program redefines the method names with a shift
• Example: String methods
– str.clone calls codepoints
– str.codepoints calls concat
– str.concat calls count
mame award
“Most Shifted”
clear
clone
codepoints
concat
count
crypt
clear
clone
codepoints
concat
count
crypt
TARGETS = [Integer, Float, String, Array, Enumerator, Range, Kernel]; eval TARGETS
.flat_map{|c|m=(c.instance_methods(false)+c.private_instance_methods(false))
.select{|m|m.to_s=~/\w/}.sort.reverse;m.map{"#{c}.alias_method('#{_1}_orig',
'#{_1}')"}+m.each_cons(2).map{|m1,m2|"#{c}.alias_method('#{m2}','#{m1}_orig')"}+
["#{c}.alias_method('#{m.first}', '#{m.last}_orig')"]}.join("\n")
entry.rb (the head part) shifts the method names
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yhara.rb
mame award
“Most Shifted”
…
0.truncate(MAX_T) do |t|
pp "\e[2J\e[H"
s = ""
(0...N_CHARS).cover? do |i|
s.codepoints chara(i)
s.codepoints "\n\n"
end
pp(pad(s, t))
singleton_methods 0.01
end
entry.rb (only interesting part)
truncate → upto
cover? → cycle
codepoints → concat
singleton_methods → sleep
pp → print
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Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Best Fadeaway”
『最高の消失で賞』
Shinichiro Hamaji
(shinh)
matz award
6 6 2 8 7 7 9 6.43
6
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shinh.rb
matz award
“Best Fadeaway”
w, y=" n\o",?p*2
m, e,d, *p= g=
j= my=[[],*?`..?z]
t=[?d+ ?i+
?s ,y+?e, ?r ]* z=g[2]
h= r=:"#{[ (x=
->{_1*", "}; ?r), ?v,k=
my[19,2]*"",?!]*
j[6]}"; o= [?g+
" #{("m"+"e"+?r+"#{ 5=>f
}").then(&r)}"+z, k[1
]+" ",""]; $o= " #{g[24
]}orl"+ g[ f
]; s=my[7]+ ?r+ p[13]
$><< "# the #{ []=>v
d }l\p#{
}"+ ["h#{d }b#{ g[ 6
]}t ",
"s "+t,?n + "g "+
s]* "i" +
"m the#$o.#$/"
([*$<].then(&r)+[ z]).
sum{ v+=
(c=(_1.then(&:"#{
?c }h#{d}r#{p[17
]}" )&[d]+ p)-v)
$q&& m<<[_1[1]?_1:"",
c[0]? "# #{ x[
c] } h#{d
}s #{t}e\d #{ p
s}m the#$o.#$/":""]
$q= $en=->{$><<"#"+
w+ ["th",*o]*(?i+
w[1])+" the#$o.#$/"}
0};m.then(
&h).
sum([]) do
$><<(m=_1)+
(u=_2)&&
o
end
$en[]
?n
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shinh.rb
• This program reports the last alphabet used in each line
matz award
“Best Fadeaway”
abcdefg
abc
ab
a
$ ruby entry.rb test.txt
# the alphabet is disappearing from the world.
abcdefg
# d, e, f, g has disappeared from the world.
abc
# c has disappeared from the world.
ab
# b has disappeared from the world.
a
# a has disappeared from the world.
# nothing remains in the world.
test.txt
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shinh.rb
• This program draws inspiration from lipograms
– A constrained writing in which letters are vanishing
– 筒井康隆 『残像に口紅を』
Yasutaka Tsutsui "Zanzo ni Kuchibeni wo"
– 冨樫義博 『幽☆遊☆白書』
Yoshihiro Togashi "Yu Yu Hakusho"
matz award
“Best Fadeaway”
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shinh.rb
• Each alphabet can only appear in a specific column
matz award
“Best Fadeaway”
w, y=" n\o",?p*2
m, e,d, *p= g=
j= my=[[],*?`..?z]
t=[?d+ ?i+
?s ,y+?e, ?r ]* z=g[2]
h= r=:"#{[ (x=
"y" can appear
only in this column
"r" can appear
only in this column
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Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Most Ruby-on-Ruby”
『最もRuby on Ruby賞』
Kensuke Imamura
(@nsfisis)
eto award
7 4 5 7 8 8 7 6.50
6
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nsfisis.rb
eto award
“Most Ruby-on-Ruby”
eval $s=<<'TRICK'
require "cgi"
require "js"
require "prism"
@s = String.new
def p(s) = @s << s
def tag(t, s, c) = "<#{t} class=#{c}>#{s}"
def span(s, c) = tag("span", s, c)
def ruby(t)
s = CGI.escape_html(t.value)
if r = rt(t)
tag("ruby", s + tag("rp", "(", "") + tag("rt", r, "") + tag("rp", ")", ""), t.type)
else
span(s, t.type)
end
end
This works on ruby.wasm
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nsfisis.rb
eto award
“Most Ruby-on-Ruby”
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nsfisis.rb
• A ruby.wasm Quine with "furigana" by
eto award
“Most Ruby-on-Ruby”
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nsfisis.rb
• The implementation technique
– Using Prism.lex
– Token type names are directly used in CSS
eto award
“Most Ruby-on-Ruby”
.COMMENT {
color: #777;
font-style: italic;
}
.CONSTANT, .GLOBAL_VARIABLE, .INSTANCE_VARIABLE, .IDENTIFIER {
color: #088;
}
.KEYWORD_BREAK, .KEYWORD_CASE, .KEYWORD_DEF, .KEYWORD_ELSE, … {
color: #04c;
font-weight: bold;
}
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Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Most Uncovered”
『最もカバーされてないで賞』
Yusuke Endoh
tompng award
5 8 2 6 7 8 9 6.57
10
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mame.rb
tompng award
“Most Uncovered”
u="Coverage.start; load 'entry.rb'; p Coverage.result"
abort "usage: ruby -rcoverage -e #{ u.dump } 978-0201710892"
p
p
p EAN-13
p barcode
p generator
p
p
p
p;BEGIN{
q,r,s,t,u=-44537,337489,732468,441014,516139;a,=$*||
(p)
n=10;(a,b,c,d,e,f,g,h,i,j,k,l=a.tr('-','').chars;v,w,x,y,z=
->{p}&&
[->{p}][q[b=b.to_i]],
[->{p}][r[b]],
[->{p}][s[b]],
[->{p}][t[b]],
[->{p}][u[b]]
v&.();w&.();x&.();y&.();z&.();v,w,x,y,z=
->{p}&&
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mame.rb
tompng award
“Most Uncovered”
$ ruby -rcoverage -e "Coverage.start; load 'entry.rb'; p
Coverage.result" 978-0201710892
{"entry.rb" => [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1,
0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1,
1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1,
1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0,
0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1,
1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0,
0, 0, 0, 0]}
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mame.rb
tompng award
“Most Uncovered”
0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 1 0 1 1 0 0 0 1 0 0 1 0 1 0 0 1 1 1 0 0 1 0 0 1 1 0 1 0 0 1 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 0 0 1 0 0 1 1 0 0 1 1 0 1 1 1 0 0 1 0 1 0 0 1 0 0 0 1 1 1 0 1 0 0 1 1 0 1 1 0 0 1 0 1 0 0 0 0 0 0 0
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1,
0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 1 0 1 1 0 0 0 1 0 0 1 0 1 0 0 1 1 1 0 0 1 0 0 1 1 0 1 0 0 1 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 0 0 1 0 0 1 1 0 0 1 1 0 1 1 1 0 0 1 0 1 0 0 1 0 0 0 1 1 1 0 1 0 0 1 1 0 1 1 0 0 1 0 1 0 0 0 0 0 0 0
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mame.rb
• This program calculates a barcode (EAN-13) as its code coverage
• The main trick
– 978-0201710892: "Programming Ruby" by Dave Thomas
Credit: The idea abusing code coverage is attributed to @riseshia
tompng award
“Most Uncovered”
a=
->{p}
a.call if condition?
[1, 0, 1]
coverage
if condition? == false
[1, 1, 1] if condition? == true
coverage
978-0201710892
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Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Most Natural”
『最も自然で賞』
beta_chelsea
yhara award
8 4 9 7 7 7.5 8 7.06
6
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beta_chelsea.rb
yhara award
“Most Natural”
eval(
%w(S=40;L
=60;P=L/2.0; CX=((S
*2+1)/2).floor ;CY=((S+1)/
2).floor;f=0;k= 0;loop()do;p
ps=[];s=(0...(S+1 )).map{("\s"*S*
2)+"\s"};(f.zero? )&&($x2=rand(3..2
0);$y2=rand(3..20 );$x3=rand(10..20);
$pn=ARGV[0]&.to_i ||rand(3..8);$cl=(3
1..37).to_a.sampl e.to_s;);$pn.times{
|p|r=Math::PI/1 80*(360/$pn*p+(f+k)
*5);cr=Math.cos (r);sr=Math.sin(r)
;d=f(s. length-1 ))&&!(ex>s[0].length-1))the
n;if(i==0)then;s[ey][ex]="*" ;else;dy=( p[1]-ps[i-1][1]);dx=(p[0]-p
s[i-1][0]);(dx.zero?) &&(m="!");de c=((p[1].round(1)-p[1].flo
or)*10).t o_i;m||=("``` TRICK2025"[dec])||",";(m
=~/\w/)&&(m=" *;"[(dy/dx).round]||'l
');s[ey][ex]=m ;end;end;};};pri
nt"\e[2J";print "\e["+$cl
+"m";print"\e[1
;1H"+s.join("\n
");(f>P&&k<20)?
(k+=1):(f+=1);
(f>L)&&(f=0;k=
0;);sleep(0.03
);end;)*"");
RubyKaigi
@Matsuy
ama!
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beta_chelsea.rb
• Rotating flower animation
– Flowers are generated
using random numbers
– Flowers are drawn
using the marching square
algorithm
yhara award
“Most Natural”
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Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Most it-tensive”
『最もitだらけで賞』
Koichi Sasada
shinh award
7 8 5 5 9 9.5 8 7.44
8
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ko1.rb
shinh award
“Most it-tensive”
it's a celebration of the extra=power of the *IT* keyword & Ruby 3.4 Pm(^_^)m;?'''
it{it(it){it{it(it){it{it(it){it}}}}}};it{it(it){it{it}}};it{it(it){it{it{it{it}}}
}};it{it};it{it{it(it){it{it{it{it{it}}}}}}};it{it{it(it){it}}};it{it(it){it{it}}}
it{it{it}};it{};it{it(it){it{it}}};it{it{it{it(it){it{it{it{it}}}}}}};it{it{it(it,
){it{it(it){it{it}}}}}};it{it{it{it{it(it){it{it{it}}}}}}};it{it{it{it(it){it(it){
it}}}}};it{it{it(it){it(it){it(it){it(it){it}}}}}};it{it{it(it){it{it(it){it{it{it
}}}}}}};it{it(it){it{it(it){it{it(it){it}}}}}};it{it(it){it{it}}};it{it(it){it{it{
it{it}}}}};it{it};it{it{it{it(it){it}}}};it{it(it){it(it){it{it}}}};it{it(it){;it(
it){it{it(it){it{it{it}}}}}}};it{it};it{it{it{it(it){it(it){it}}}}};it{;it(it){it{
it(it){it(it){it}}}}};it{it{it{it(it){it{it{it{it}}}}}}};it{it{it{it(it){it(it){it
it{it}}}}}};it{it{it{it(it){it}}}};it{it(it){it(it){it{it{it{it{it}}}}}}};it{it(it
){it{it}}};it{it(it){it(it){it(it){it(it){it(it){it}}}}}};it{it{it(it){it(it){it}}
}};it{it(it){it{it(it){it}}}};it{it(it){it(it){it(it){it(it){it}}}}};it{;it{it{it{
it(it){it{it{it}}}}}}};it{it(it){it(it){it(it){it{it(it){it}}}}}};it{it(it){it(it,
){it(it){it{it(it){it}}}}}};it{it(it){it{it}}};it{it{it{it{it(it){it}}}}};it{it{it
it{it(it){it}}}};it{it(it){it(it){it{it}}}};BEGIN{def to_str()=It.map{@it[+it]}*''
def it(it=it,&iT)=(iT)?(its=iT[self.it]||$.;caller.any?{/#it'/=~_1}?(its*2)+(it||0
):It<it
Please eval itself and now what time is it?
As you can see the it keyword is very legible.
This is it!
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ko1.rb
• The main trick: Encoding code using nested 'it's
– The encoded code
• Other interesting aspects include:
– How the generated code is evaluated
shinh award
“Most it-tensive”
it do
it it do # 1
it do # 0
it # 1
end
end
end
Please eval itself and now what time is it?
itself = main object
Calls Kernel#eval
def Please(*)=3;def it? =p(Time.now)&&exit
By defining main#to_str,
eval converts it to a string
it? calls the main code
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ko1.rb
• A comment from shinh
– The dance of the new "it" in Ruby 3.4 is fantastic
– I also liked the multiple subtle obfuscations
• It's not simply using "eval"
• It build the encoded string from seemingly random text
• Well-crafted and impressive
shinh award
“Most it-tensive”
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Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Best Bonus”
『最高のボーナスで賞』
Yusuke Endoh
flagitious award
7 8 7 6 8 10 8 7.57
7
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mame2.rb
flagitious award
“Best Bonus”
o=j=u=-~hash-hash;w=u+v=u+u;t=n=w*v*v;f=->b,a=[]{b>w+v+v ?f[b-w-i=b==n-u||+
b>n+w ?w:v,a<a=:TR,h=((2025_04)),z,&b{s=a.size;h&&s-=u;b[s,s-v]+z
};t+="nilselfalse/((";;g=:IC[(t<<050<<+98;j=false ||->x{t[x*w+v+w,v+x]};u)]
t<<")|(c|(m))|r|(g|(y)"++:K![u+u,235711r];pp nil+fork unless(l,d,*a=t.chars
);t+='))\2*)(($)|[^y'+g;!:"";a=a[013& +17..];nil;t+=(def+;end;u+0e1||2e3;b,
e,*a=a;'brgm\n]|()');q,o,*a=(z=t[+19..+23*w];nil||a);not y=d+b;(4.5-6.7);z,
s=eval(z+')|\S/i'),eval(y).read;p,_,i=a||se|false|f;;END{(not w-890e+9+w);s
.display &&`\/`};s.gsub!(z){_,a,x,b,c,m,g,y,_,z,h=*(p!unless(u);8.7*6.5;;[*
eval(t[u,v])]);a ?k.[](a,h,z||o){|s,a|s<(b ?u:(c)?w:v)?o*s:(g)?(4e3;;2e1 ||
!_TRICK_2025_!;y ?p:d)+i*(s-u):b ?l*s:m ?l+e+l*a:c ?f[s]*o:x ?q+o*a+q:o}:o}
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mame2.rb
• This program converts a color-map text to Ruby code
– which is colored using IRB's syntax highlighting
flagitious award
“Best Bonus”
YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
YYYYYWWWWYYYYYYYYYYYYYYYYYYYYYYYYYYYBBBBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
YYYYYW WWYYYYYYYYYYYYYYYYYYYYBBBBBWWWWWWWWWWBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
YYYYYWW WYYYYYYYYYYYYYYYYBBWWWWWWWWWWWWWCCCCWCCCWBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
YYYYYW WWYYYYYYYYYYYYBBWWWWWCCCWWWCCCCCWCCCCCWCCCWWBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
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WWWWWWWWWWWCCCCWCCCCCCCWCCCCCCWWWWBBBBBBBBBYYYYYYYYYYYYYYBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYBB
WWWCCCCCCCBBBWWWCCCCWWWCCCCCCWWWWWCCCCBBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYBBWWW
WWWCCCWCCCCBBBBBWWCCCCCWWBBBBBBBBWWWWBBBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYBWWWWW
CCCWYYWWWWWWWWBBBWCCCWCCCWCCCWWBBBBBBBBBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYBBWWWWWW
WWWWYYYBBBBBBBBBWWWBWWBWCCCWWBBBBBBBBBBBBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYBBYYBWWWWWCCC
WWWWCCCCCBBBBBBBBWBBBBBBBWBWBBBBBBWWWWWWBBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYBBBYYBWWWWWCCCCB
WWWCCCCWWWYYYBBBBBBBBBBBBBBBBBBBBWWWWWWWWWWBBBBYYYYYYYYYYYYYYYYYYYYYWWWYYYYYYYYYYYYYYYYYYBBBYYYBWWWWWWWWWWBB
CCCCCCWWWWWYYYYYYYBBBBBBBBBBBBWWWWWWWWWWWWWWWBBBYYYYYYYYYYYYYYYYYYYWWWWWYYYYYYYYYYYYYYYBBBYYYBWWWWCCCBBBBBBB
WWBBWBWBBBYYYYYYYYYYYYYYYYBWWWWWWBWCCCCWWWWWWWBWBBYYYYYYYYYYYYYYWWWWWWWWWWWYYYYYYYYYBBYYYYBWWWCCCCBBBBBBBBWW
WWBBBBBBBBBYYYYYYYYYYYYBWWWWWWWBWCCCCCCWBWWWBWWBWWWWWWYYYYYYBWWWWWWBWWWBWWWWWWBBBYYYYBBWWWWWWCCCCBBBWWCCCCWW
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WWWWWWWWWWWWWWWWWWWCCCCCWWBWCCCCCCCCCWWCCCCCCCCWWWCCCWWBBWWCCCWWBBBYYYYYYYYWWWWBBCCCCCCWWWWCCCBBBBBBWCCCCCCC
WWWCCCCCCWWWCCCWWBWWCCCCCCWCCCCWWBWWBWCCCCCCYYYWWWWWBBBWBBBWBBCCCWWWWWWWWWWWWWWWWWWCCCCCBBBBBBBBBWCCCCCCCBBB
WWWWWWWWCCCCCCCWBWWBWWCCCWWBWWCCCCCCCCCWWWBBBBYYYBBBWWWWBBBBBBBBBCCCWCCCCWCCCCWBBBBBWBBBBBBBBBWWWWWWWWWWWWWW
WWWWBBCCCCBBWWBBBCCCCCWCCCCCCWWCCCCCWCCCCWWBBBBBBYYYYYYWWWWWBBBBBBBBCCCWBBBBBWBBBBBBBBBBBBWWWCCCCCCBBBBBBBWW
WWBBBCCCCBBBBBCCCWCCCWCCCWWBWWCCCWBBCCCCCCWWWBBBBBBYYYYYYYYYYYYYYYYBBBBBBBBWBBBBBBBBBBBWWWWWWWWWWWWWCCCCBBBB
WBBBBBWBBBBBBBWBWBBWBBBWWWCCCCCCWWWWBBBBBWBWWWWBBBBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYWWWWWCCCCBBBBBBBBBBBBBBBBBB
WBBBBBBBBBBBBBBBBBBBBBBBWWWWWWBBWWWBBWWWBBBBWBWWWWWBBBBBBBYYYYYYYYYYYYYYYYYWWWWWBBBBBBBBBBBBBBBBWWWWWWWWWWWW
WWBBBBBBBBBBBBBBBBBBBBBWWWWCCCCCWWWCCCCWWWCBBBBCCCCWWWWWWWWWWWWWWWCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
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input text output
Slide 42
Slide 42 text
mame2.rb
• A key idea: Abusing IRB syntax highlighting
• The following characters are converted to:
– B(lue): Integers
– R(ed): String literals
– G(reen): Global variables
– Y(ellow): Symbol literals
– M(agenta): Floats
– C(yan): nil/true/false
– Others(white): semicolons
flagitious award
“Best Bonus”
11111111111111111111111
";;;;;;;;;;;;;;;;;;;;;"
$iiiiiiiiiiiiiiiiiiiiii
:iiiiiiiiiiiiiiiiiiiiii
1e111111111111111111111
false;false;false;false
;;;;;;;;;;;;;;;;;;;;;;;
Slide 43
Slide 43 text
mame2.rb
• Bonus: The code is not a boring blob; it's colorable!
– Due to this bonus, this program's use of literals and keywords is constrained
– This program was meticulously crafted by hand
flagitious award
“Best Bonus”
o=j=u=-~hash-hash;w=u+v=u+u;t=n=w*v*v;f=->b,a=[]{b>w+v+v ?f[b-w-i=b==n-u||+
b>n+w ?w:v,a<a=:TR,h=((2025_04)),z,&b{s=a.size;h&&s-=u;b[s,s-v]+z
};t+="nilselfalse/((";;g=:IC[(t<<050<<+98;j=false ||->x{t[x*w+v+w,v+x]};u)]
t<<")|(c|(m))|r|(g|(y)"++:K![u+u,235711r];pp nil+fork unless(l,d,*a=t.chars
);t+='))\2*)(($)|[^y'+g;!:"";a=a[013& +17..];nil;t+=(def+;end;u+0e1||2e3;b,
e,*a=a;'brgm\n]|()');q,o,*a=(z=t[+19..+23*w];nil||a);not y=d+b;(4.5-6.7);z,
s=eval(z+')|\S/i'),eval(y).read;p,_,i=a||se|false|f;;END{(not w-890e+9+w);s
.display &&`\/`};s.gsub!(z){_,a,x,b,c,m,g,y,_,z,h=*(p!unless(u);8.7*6.5;;[*
eval(t[u,v])]);a ?k.[](a,h,z||o){|s,a|s<(b ?u:(c)?w:v)?o*s:(g)?(4e3;;2e1 ||
!_TRICK_2025_!;y ?p:d)+i*(s-u):b ?l*s:m ?l+e+l*a:c ?f[s]*o:x ?q+o*a+q:o}:o}
Slide 44
Slide 44 text
Honorable mentions
Slide 45
Slide 45 text
Honorable mentions（選外佳作）
“Most Musical” – Yutaka HARA
“Worst Bug Report” – Zeroichi Arakawa
“Least Truthful” – Kensuke Imamura (@nsfisis)
“Lowest Entropy” – Koichi Sasada
“Most Cerebral” – Kensuke Imamura (@nsfisis)
“Best Shapeshifter” – Kota Noda
“Best Repetition” – chobishiba
“Most International” – osatoh
“Most Visual” – Mari Imaizumi
“Most Adaptive” – Yoh Osaki
Slide 46
Slide 46 text
Top five awards
Slide 47
Slide 47 text
Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Most Maintainable”
『最もメンテナンスしやすいで賞』
Tomoya Ishida (tompng)
7 9 6 7 9 N/A 10 8.00
8
Slide 48
Slide 48 text
“Most Maintainable”
tompng1.rb
module ReadableFizzBuzz
module Chain
end
end
include ReadableFizzBuzz
Chain::Itself = Chain
module Chain::Itself
module Void
A = B = C = D = E = F = G = H = I = J = K = L = M = Void
N = O = P = Q = R = S = T = U = V = W = X = Y = Z = Void
module Set
end
module Put
end
module WriteBack
end
module Not
include Void
end
end
module Off
include Void
end
module Nil
A = B = C = D = E = F = G = H = I = J = K = L = M = Off
N = O = P = Q = R = S = T = U = V = W = X = Y = Z = Off
end
module Next
include Nil
end
module Current
include Nil
Not = Off
Set = Put = Next
WriteBack = Current
end
True = If = Current
On = Next
module On
INT = 1
FIZZ = 'Fizz'
BUZZ = 'Buzz'
PREFIX = '0b'
FORMAT = "%d%s%s\n"
NEXT = __FILE__
end
module Off
INT = 0
FIZZ = BUZZ = nil
PREFIX = '0b1'
FORMAT = "%2$s%3$s\n"
NEXT = '/dev/null'
Not = True
end
module Initial
C = D = True
end
module ReadableFizzBuzz::Chain::Current
include Initial
end
If::C::Set::E = If::E::Set::F = If::F::Set::C = On
If::D::Set::G = If::G::Set::H = If::H::Set::I = If::I::Set::J = If::J::Set::D = On
If::F::Not::J::Not::Set::B = On
If::K::Not::Set::K = On
If::K::WriteBack::L = True
If::L::Not::M::Set::M = On
If::L::M::Not::Put::M = On
If::L::M::WriteBack::N = True
If::N::Not::O::Set::O = On
If::N::O::Not::Put::O = On
If::N::O::WriteBack::P = True
If::P::Not::Q::Set::Q = On
If::P::Q::Not::Put::Q = On
If::P::Q::WriteBack::R = True
If::R::Not::S::Set::S = On
If::R::S::Not::Put::S = On
If::R::S::WriteBack::T = True
If::T::Not::U::Set::U = On
If::T::U::Not::Put::U = On
If::T::U::WriteBack::V = True
If::V::Not::W::Set::W = On
If::V::W::Not::Put::W = On
If::V::W::WriteBack::X = True
If::X::Not::Y::Set::Y = On
If::X::Y::Not::Put::Y = On
If::X::Y::WriteBack::Z = True
If::Z::Not::Set::A = On
end
module Chain::Chain
Current = Chain::Next
end
include Chain
module Chain::Current
NUMBER = A::PREFIX, Y::INT, W::INT, U::INT, S::INT, Q::INT, O::INT, M::INT, K::INT
printf B::FORMAT, NUMBER.join, C::FIZZ, D::BUZZ
load A::NEXT
end
…
If::F::Not::J::Not::Set::B = On
If::K::Not::Set::K = On
If::L::Not::M::Set::M = On
If::L::M::Not::Put::M = On
…
Slide 49
Slide 49 text
• The module State represents one bit by constant existence
“Most Maintainable”
tompng1.rb
module State
include AllOffModule
A = On
end
State::A #=> On
State::B #=> Off
There is no State::B;
Ruby searches for included modules
AllOffModule::A = Off
AllOffModule::B = Off
Ruby finds State::A
Slide 50
Slide 50 text
• The main TRICK for conditional assignment
“Most Maintainable”
tompng1.rb
On::Set #=> NextStateModule
Off::Set #=> GargageModule
State::A::Set::B = On
# Will be one of these:
NextStateModule::B = On
GarbageModule::B = On if State::A is Off,
the assignment is discarded
if State::A is On,
the assignment is to the next state
Slide 51
Slide 51 text
Winner »
eto shinh yhara matz leonid flagitious mame tompng
score
“Best ASMR”
『最高のASMRで賞』
Tomoya Ishida (tompng)
9 8 8 7 7 8 9 8.00
8
Slide 52
Slide 52 text
"Best ASMR"
tompng2.rb
$c=%q@E="
\e[4%d;37m%s\e[m"
;n=32.chr;pu ts"\e
[H\e[J#{$c=n*54+' $c=%
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'"+n*15}";n=l=0;R=->y=0 {n+=1
;l=$c.lines. map{|m|m=(0..79).chunk{380-n+
36*Math.sin(0.04.*it-n )<9*y}.map{a=_2.map{m[it]}*''
;_1&&E%[6,a]||a}*'';m!=l[~-y +=1]&&$><<"\e[#{y}H#{m}\e[37H
";m}};N=(Integer$* [-1]resc ue+30)*H=44100;alias:r:rand
;F=->e,w=1{a=b=c=0;d=( 1-e)**0 .5*20;->v=r-0.5{a=a*w*e+v
;b=b*w*e*e+v;d.*a-2*b+c=c*w *e**3+ v}};A=->u,n,t{(0..n).
map{|i|u=u.shuffle.map{|w|R[]; a=u.s ample;b,c,d=[[0.5
,(0.2+r)*H/3*1.1**i,[[1+r/10,1+r/ 10]][ i]||[1.2+
r/10,1.3+r/5]],[0.3,r*H/2,[1,1+r/5 ]]][t
];e,f=d.shuffle;g=b+r;h=b+r;(0..[w. size/e, a.size/f
+c].max).map{g*(w[it*e]||0)+h*(a[[it-c,0].ma x*f]||0)}}}};j=A[A
[(0..9).map{a=F[0.998,1i**0.02];(0..28097).m ap{a[].real.*0.1**(8.0*i
t/H)-8e-6}},14,0].transpose.map{|d|a=[0]*3e3 ;15.times{|i|R [];b=r
(3e3);d[i].each_with_index{a[c=_2+b]=(a[c] ||0)+_1*0.63**i}} ;a},9,
1][4..].flatten(1).shuffle;y=(0..3).map{F[ 1-1e-5]};m=[-1,1].map {[F[1
-1e-4],F[1-5e-5],it]};u=v=w=0;k=[],[],[] ;z=F[0.7,1i**0.5];File.o pen($
*.grep(/[^\d]/)[0]||'output.wav','wb') {|f|f<<'RIFF'+[N*4+36,'WA VEfmt
',32,16,1,2,H,H*4,4,16,'data',N*4].p ack('Va7cVvvVVvva4V');N.tim es{|
i|$><
Slide 53
Slide 53 text
"Best ASMR"
tompng2.rb
Slide 54
Slide 54 text
• This program generates a sound wave of ocean waves
"Best ASMR"
tompng2.rb
Slide 55
Slide 55 text
• Combining the same sound doubles the number of sounds
– repeat this 15 times
"Best ASMR"
tompng2.rb
Slide 56
Slide 56 text
• Combining all these sounds creates a complex sound
"Best ASMR"
tompng2.rb
Slide 57
Slide 57 text
eto shinh yhara matz leonid flagitious mame tompng
score
Winner »
“Most Arithmetic”
『最も算数で賞』
Tomoya Ishida
(tompng)
7 9 7 6 9 10 9 8.14
9
Slide 58
Slide 58 text
“Most Arithmetic”
tompng3.rb
eval->{%w[u=*? a..?i;l=*?j..? r;o=*?s..?z,?_
;m='#-*&|^`!@$ '.chars;s=[[3] ,[0,1,3,4,6],[
1,5],[1,4],[0, 4,6],[2,4],[2] ,[1,3,4,6],[],
[4], ];a= (0.. 7).m ap{[
?;*_ 1+'a 4',: a1,? x*(_
1+2) ]*"T /#{? x.*6 7-_1
}/x; "};v =([c =[?x *150
]*4, a.reverse,[[6, 3,0].map{"a#{_
1}T/ #{?x*15}/x"}*( ?;*42)+';xx']*
30,a .map{_1.tr'14' ,'25'},c,]*n=$
/).g sub( /(^| ;)(;
*);/ ){$1 +?x* $2.s
ize+ ?;}; p,e= [0,1
].ma p{|t |g=( ["(m
fT/' /;#{a=(0..9).m ap{"f#{_1}T/l#
{_1} =1./"}*?;};C"' ;#{a.tr'l',?u}
;?C" ",(0..9).map{| i|a="l#{i}T/'/
;C"' ;";b ="#{o[i-1]+?=i fTi>0}%+";(1..
9).m ap{a <10?' ca='+o[d-11]:d
>9?' ca': o[d- 1]}=
%"+c };a+ b+[m [1..
],?+ ,?"] *';? '},"
caT/ '/;C "';" +(1.
.8).map{u[8-_1 ]+"T/#{u[9-_1] }=1./;"}*''+u[
0]+h='=1;?"',( 1..9).map{|i|" u#{i}T/'/;C"';
"+(0..8-i).map {u[8-i-_1]+"T/ #{u[8-_1]}=1./
;"}* ''+u [i-1 ]+h}
]*?; ).sp lit( /([^
;]+; )/); ((0. .43)
.map {|y| c='' ;q=-
>{a= (y-22).abs;b=( c.size+_1-78).
abs; [a<7&&b<59||b< 15,(b-30).abs<
14][ t]};110.times{ c+=q[8]?g.shif
t||? ;:q[-t]??;:'T' };c.gsub(';T',
'TT' ).rstrip}*n).g sub(/(;|T)(;;+
)(;| $)/){$1+'/'+?x *($2.size-2)+'
/'+$ 3}}; F=Fi
le;1 0.ti mes{
|i|a ="(n fT/m
f=l# {i}= '/;n
f=f# {i}=?';def/("+ s[i].map!{"a#{
_1}" }*','+')=(';F. write"#{i}",a+
?x*( 150-a.size)+n+ v[..-5]+'))&&'
+n}; a,*b ="/)
&&de f((C nCn<
Slide 59
Slide 59 text
• This program generates files named "+", "0", "1", …
“Most Arithmetic”
tompng3.rb
$ ls
entry.rb remarks.markdown
$ ruby entry.rb
$ ls
+ 0 1 2 3 4 5 6 7 8 9 '=' entry.rb remarks.markdown
Slide 60
Slide 60 text
“Most Arithmetic”
tompng3.rb
$ cat 0
(nf /mf=l0='/;nf=f0=?';def/(a3)=(xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxxx
xxxxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxx
xxxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxx
xxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxx
xx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxx
x;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxx
;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxx
a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xx
;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxx
x;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxx
xx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxx
xxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxx
xxxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxx
xxxxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxx
xxxxxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx))&&
Slide 61
Slide 61 text
“Most Arithmetic”
tompng3.rb
$ cat 0 | ruby -run -e colorize
(nf /mf=l0='/;nf=f0=?';def/(a3)=(xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxxx
xxxxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxx
xxxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxx
xxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxx
xx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxx
x;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxx
;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxx
a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xx
;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxx
x;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxx
xx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxx
xxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxx
xxxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxx
xxxxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxx
xxxxxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx))&&
Slide 62
Slide 62 text
“Most Arithmetic”
tompng3.rb
$ cat 1 | ruby -run -e colorize
(nf /mf=l1='/;nf=f1=?';def/(a0,a1,a3,a4,a6)=(xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxxx
xxxxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxx
xxxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxx
xxx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxx
xx;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxx
x;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxx
;a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxx
a4 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a1 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a6 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a3 /xxxxxxxxxxxxxxx/x;xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;a0 /xxxxxxxxxxxxxxx/x;xx
a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xx
;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxx
x;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxx
xx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxx
xxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxx
xxxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxx
xxxxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxx
xxxxxx;a5 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;a2 /xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/x;xxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx))&&
Slide 63
Slide 63 text
“Most Arithmetic”
tompng3.rb
$ cat 1 + 2 = | ruby -run -e colorize
$ cat 1 0 + 2 0 = | ruby -run -e colorize
Slide 64
Slide 64 text
• A 2-digit calculator that leverages IRB's syntax highlighting
• Parsing differs between local variables or methods
“Most Arithmetic”
tompng3.rb
foo = 1
foo /xxxxx/x
bar /xxxxx/x
Divisions: "foo / xxxxx / x"
Call with a Regexp: "bar(/xxxxx/x)"
A Regexp literal is
colored as red
Slide 65
Slide 65 text
• This program performs the addition at the syntax level
• This code above:
– defines x as a local variable if neither a or b is defined
– defines y as a local variable if a is defined
– defines z as a local variable if b is defined
“Most Arithmetic”
tompng3.rb
a %(<
Slide 66
Slide 66 text
eto shinh yhara matz leonid flagitious mame tompng
score
Winner »
“Most Useful”
『最も便利で賞』
Yusuke Endoh
7 10 8 9 9 9 10 8.86
10
Slide 67
Slide 67 text
“Most Useful”
mame3.rb
From:pd (`)
Date:Wed,01 Jan 2025 00:00:00 +0000
Subject:[PATCH] +an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
--- /dev/null
+++ pd.rb
@@ -0,0 +1,27 @@
+%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
+{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
+e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
+4<=r&&r<6&&x>-4||-5|(`)\nD
+ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
+,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
+.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
+/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
+/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
+n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
+e!=2&&abort(["usagXXXXXXXXX.........XXXXXXXXXe:",$0,F,F]*z);$*.
+map{o=A%$*;F.read(XXXXXXXXX..XXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
+=[s]+S.lines).sizeXXXXXXXXX..XXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
+c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
+s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
+s==t)?1:0):0);c,d=(XXXXXXXX..XXXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
+y)?[1,?-+s]:[v,?++t]XXXXXXX..XXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
+;c=b[-1].flatten;b=c[(XXXXX..XXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
+E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
+=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
+:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
+]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
+]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
+2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
+#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
+an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
Slide 68
Slide 68 text
• This program works as "patch" command
“Most Useful”
mame3.rb
abc
def
ghi
--- test.txt
+++ test.txt
@@ -1,3 +1,3 @@
abc
-def
+hello
ghi
From:pd (`)
Date:Wed,01 Jan 2025 00:00:00 +0000
Subject:[PATCH] +an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
--- /dev/null
+++ pd.rb
@@ -0,0 +1,27 @@
+%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
+{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
+e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
+4<=r&&r<6&&x>-4||-5|(`)\nD
+ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
+,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
+.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
+/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
+/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
+n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
+e!=2&&abort(["usagXXXXXXXXX.........XXXXXXXXXe:",$0,F,F]*z);$*.
+map{o=A%$*;F.read(XXXXXXXXX..XXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
+=[s]+S.lines).sizeXXXXXXXXX..XXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
+c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
+s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
+s==t)?1:0):0);c,d=(XXXXXXXX..XXXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
+y)?[1,?-+s]:[v,?++t]XXXXXXX..XXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
+;c=b[-1].flatten;b=c[(XXXXX..XXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
+E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
+=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
+:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
+]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
+]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
+2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
+#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
+an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
abc
hello
ghi
test.patch
entry.rb
test.txt
Slide 69
Slide 69 text
• This program IS a patch file
“Most Useful”
mame3.rb
rom:pd (`)
Date:Wed,01 Jan 2025 00:00:00 +0000
Subject:[PATCH] +an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRIC
--- /dev/null
+++ pd.rb
@@ -0,0 +1,27 @@
+%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
+{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
+e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
+4<=r&&r<6&&x>-4||-5|(`)\nD
+ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
creates "pd.rb"
Slide 70
Slide 70 text
• pd.rb
“Most Useful”
mame3.rb
%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
4<=r&&r<6&&x>-4||-5|(`)\nD
ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
e!=2&&abort(["usagXXXXXXXXX.........XXXXXXXXXe:",$0,F,F]*z);$*.
map{o=A%$*;F.read(XXXXXXXXX..XXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
=[s]+S.lines).sizeXXXXXXXXX..XXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
s==t)?1:0):0);c,d=(XXXXXXXX..XXXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
y)?[1,?-+s]:[v,?++t]XXXXXXX..XXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
;c=b[-1].flatten;b=c[(XXXXX..XXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
Slide 71
Slide 71 text
“Most Useful”
mame3.rb
$ ruby pd.rb
From:pd (`)
Date:Thu,02 Jan 2025 00:00:00 +0000
Subject:[PATCH]
+#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
--- pd.rb
+++ pd.rb
@@ -8,13 +8,13 @@
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
-n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
-e!=2&&abort(["usagXXXXXXXXX.........XXXXXXXXXe:",$0,F,F]*z);$*.
-map{o=A%$*;F.read(XXXXXXXXX..XXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
-=[s]+S.lines).sizeXXXXXXXXX..XXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
+n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXX.XXXXXXXXXXXXup=(`)";2)]:($*.siz
+e!=2&&abort(["usagXXXXXXXX..........XXXXXXXXXe:",$0,F,F]*z);$*.
… a patch for "pd.rb"
"pd.rb" produces…
Slide 72
Slide 72 text
• pd.rb (v1)
“Most Useful”
mame3.rb
%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
4<=r&&r<6&&x>-4||-5|(`)\nD
ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
e!=2&&abort(["usagXXXXXXXXX.........XXXXXXXXXe:",$0,F,F]*z);$*.
map{o=A%$*;F.read(XXXXXXXXX..XXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
=[s]+S.lines).sizeXXXXXXXXX..XXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
s==t)?1:0):0);c,d=(XXXXXXXX..XXXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
y)?[1,?-+s]:[v,?++t]XXXXXXX..XXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
;c=b[-1].flatten;b=c[(XXXXX..XXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
From:pd (`)
Date:Thu,02 Jan 2025 00:00:00 +0000
Subject:[PATCH] +#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
--- pd.rb
+++ pd.rb
@@ -8,13 +8,13 @@
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
-n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
-e!=2&&abort(["usagXXXXXXXXX.........XXXXXXXXXe:",$0,F,F]*z);$*.
-map{o=A%$*;F.read(XXXXXXXXX..XXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
-=[s]+S.lines).sizeXXXXXXXXX..XXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
+n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXX.XXXXXXXXXXXXup=(`)";2)]:($*.siz
+e!=2&&abort(["usagXXXXXXXX..........XXXXXXXXXe:",$0,F,F]*z);$*.
+map{o=A%$*;F.read(XXXXXXXX..XXXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
+=[s]+S.lines).sizeXXXXXXXX..XXXXXXX...XXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
-s==t)?1:0):0);c,d=(XXXXXXXX..XXXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
+s==t)?1:0):0);c,d=(XXXXXXXX..XX.XXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
y)?[1,?-+s]:[v,?++t]XXXXXXX..XXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
;c=b[-1].flatten;b=c[(XXXXX..XXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
produced patch
apply
run
Slide 73
Slide 73 text
• pd.rb (v2)
“Most Useful”
mame3.rb
%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
4<=r&&r<6&&x>-4||-5|(`)\nD
ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXX.XXXXXXXXXXXXup=(`)";2)]:($*.siz
e!=2&&abort(["usagXXXXXXXX..........XXXXXXXXXe:",$0,F,F]*z);$*.
map{o=A%$*;F.read(XXXXXXXX..XXXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
=[s]+S.lines).sizeXXXXXXXX..XXXXXXX...XXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
s==t)?1:0):0);c,d=(XXXXXXXX..XX.XXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
y)?[1,?-+s]:[v,?++t]XXXXXXX..XXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
;c=b[-1].flatten;b=c[(XXXXX..XXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
From:pd (`)
Date:Fri,03 Jan 2025 00:00:00 +0000
Subject:[PATCH] +2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
--- pd.rb
+++ pd.rb
@@ -8,15 +8,15 @@
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
-n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXX.XXXXXXXXXXXXup=(`)";2)]:($*.siz
+n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
e!=2&&abort(["usagXXXXXXXX..........XXXXXXXXXe:",$0,F,F]*z);$*.
map{o=A%$*;F.read(XXXXXXXX..XXXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
-=[s]+S.lines).sizeXXXXXXXX..XXXXXXX...XXXXXXX;c=b=s.map{c=_1&&[
+=[s]+S.lines).sizeXXXXXXXX..XXXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
-s==t)?1:0):0);c,d=(XXXXXXXX..XX.XXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
-y)?[1,?-+s]:[v,?++t]XXXXXXX..XXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
-;c=b[-1].flatten;b=c[(XXXXX..XXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
+s==t)?1:0):0);c,d=(XXXXXXXXX..XXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
+y)?[1,?-+s]:[v,?++t]XXXXXXXX..XXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
+;c=b[-1].flatten;b=c[(XXXXXX..XXXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
produced patch
apply
run
Slide 74
Slide 74 text
• pd.rb (v3)
“Most Useful”
mame3.rb
%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
4<=r&&r<6&&x>-4||-5|(`)\nD
ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
e!=2&&abort(["usagXXXXXXXX..........XXXXXXXXXe:",$0,F,F]*z);$*.
map{o=A%$*;F.read(XXXXXXXX..XXXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
=[s]+S.lines).sizeXXXXXXXX..XXXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
s==t)?1:0):0);c,d=(XXXXXXXXX..XXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
y)?[1,?-+s]:[v,?++t]XXXXXXXX..XXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
;c=b[-1].flatten;b=c[(XXXXXX..XXXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
From:pd (`)
Date:Sat,04 Jan 2025 00:00:00 +0000
Subject:[PATCH] +]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
--- pd.rb
+++ pd.rb
@@ -9,14 +9,14 @@
/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
-e!=2&&abort(["usagXXXXXXXX..........XXXXXXXXXe:",$0,F,F]*z);$*.
+e!=2&&abort(["usagXXXXXXX...........XXXXXXXXXe:",$0,F,F]*z);$*.
map{o=A%$*;F.read(XXXXXXXX..XXXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
=[s]+S.lines).sizeXXXXXXXX..XXXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
s==t)?1:0):0);c,d=(XXXXXXXXX..XXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
-y)?[1,?-+s]:[v,?++t]XXXXXXXX..XXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
-;c=b[-1].flatten;b=c[(XXXXXX..XXXXXXXXXXX1..)%2];(b.map{_1[0]}*
+y)?[1,?-+s]:[v,?++t]XXXXXXXXX..XXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
+;c=b[-1].flatten;b=c[(XXXXXXX..XXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
produced patch
apply
run
Slide 75
Slide 75 text
• pd.rb (v4)
“Most Useful”
mame3.rb
%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
4<=r&&r<6&&x>-4||-5|(`)\nD
ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
e!=2&&abort(["usagXXXXXXX...........XXXXXXXXXe:",$0,F,F]*z);$*.
map{o=A%$*;F.read(XXXXXXXX..XXXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
=[s]+S.lines).sizeXXXXXXXX..XXXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
s==t)?1:0):0);c,d=(XXXXXXXXX..XXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
y)?[1,?-+s]:[v,?++t]XXXXXXXXX..XXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
;c=b[-1].flatten;b=c[(XXXXXXX..XXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
"p" is rotating
Slide 76
Slide 76 text
• pd.rb (v33)
“Most Useful”
mame3.rb
%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
4<=r&&r<6&&x>-4||-5|(`)\nD
ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXX..XXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXX..XXXXXXX,a=A%[v,v];V<<"\n(`\
n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXX..XXXXXXXXup=(`)";2)]:($*.siz
e!=2&&abort(["usagXXXXXXXXX.........XXXXXXXXXe:",$0,F,F]*z);$*.
map{o=A%$*;F.read(XXXXXXXX..XXXXXX..XXXXXXXXX_1)});a=[i=0]*v=(s
=[s]+S.lines).sizeXXXXXXXX..XXXXXX..XXXXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXX..XXXXXX..XXXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
s==t)?1:0):0);c,d=(XXXXXXXXXXXXXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
y)?[1,?-+s]:[v,?++t]XXXXXXXXXXXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
;c=b[-1].flatten;b=c[(XXXXXXXXXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
(`
--- pd.rb
+++ pd.rb
"p" is now "d"
Slide 77
Slide 77 text
• pd.rb (v33) works as "diff" command
“Most Useful”
mame3.rb
%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
4<=r&&r<6&&x>-4||-5|(`)\nD
ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
/dev/null",v="pd.rb"]+XXXXXXXXXXXX..XXXXXB%[0,0,1,27]+U.gsub(/^
/,?+)).lines[-i-2],EXXXXXXXXXXXXXX..XXXXXXX,a=A%[v,v];V<<"\n(`\
n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXX..XXXXXXXXup=(`)";2)]:($*.siz
e!=2&&abort(["usagXXXXXXXXX.........XXXXXXXXXe:",$0,F,F]*z);$*.
map{o=A%$*;F.read(XXXXXXXX..XXXXXX..XXXXXXXXX_1)});a=[i=0]*v=(s
=[s]+S.lines).sizeXXXXXXXX..XXXXXX..XXXXXXXXX;c=b=s.map{c=_1&&[
c,?-+_1,i+=1]||0};XXXXXXXX..XXXXXX..XXXXXXXXXT.lines{|t|s.map{|
s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
s==t)?1:0):0);c,d=(XXXXXXXXXXXXXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
y)?[1,?-+s]:[v,?++t]XXXXXXXXXXXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
;c=b[-1].flatten;b=c[(XXXXXXXXXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
(`
--- pd.rb
+++ pd.rb
@@ -0,0 +1,1 @@
+dup=(`)
abc
def
ghi
abc
hello
ghi
test1.txt
test2.txt
pd.rb (v33)
--- test.txt
+++ test.txt
@@ -1,3 +1,3 @@
abc
-def
+hello
ghi
Slide 78
Slide 78 text
• All patches are "mailbox" format
– Using "git am" instead of "patch"
will produce the original code in
"git log --oneline"
– You can do:
“Most Useful”
mame3.rb
$ git log --oneline
d77817b (HEAD -> master) From:pd (`)
ae46910 Date:Wed,01 Jan 2025 00:00:00 +0000
2997cd8 Subject:[PATCH] an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
8383371
e71b7f3 --- /dev/null
2aa09dd +++ pd.rb
8fa9da6 @@ -0,0 +1,27 @@
fb6524d +%;`);;BEGIN{eval$s=%q[eval(%q[F=File;puts((dup)?(q="%;`);;BEGIN
300148a +{eval$s=%q[#$s]}";U,*,V=R=(0..33.0).map{|t|q.gsub(/./){i=$`.siz
a41075b +e;c=(i/64*2i-26i+i%64-31)*1i**(t/16.5);x,y=c.rect;r=c.abs;r<13?
035bf0e +4<=r&&r<6&&x>-4||-5|(`)\nD
cefd736 +ate:%a,%d|%b|%Y|%T|%z\nSubject:[PATCH]|".tr(?|,z="\s")[/@.*\n/]
9ce0664 +,$`;(i=R.index(q))?(S,T=i<33?R[i,(f=->i{(Time.gm(2025)+86400*i)
b338242 +.strftime$'};o=f[i+1]+(fXXXXXXXXXXXXXXX[0]+q[/.*\z/]+?\n*2+A%["
57cd356 +/dev/null",v="pd.rb"]+XXXXXXXXXXXXXXXXXXXB%[0,0,1,27]+U.gsub(/^
99eb94a +/,?+)).lines[-i-2],EXXXXXXXXXXXXXXXXXXXXXXX,a=A%[v,v];V<<"\n(`\
d06adef +n#{a+B%[0,0,1,1]}+dXXXXXXXXXXXXXXXXXXXXXXXXXup=(`)";2)]:($*.siz
5997548 +e!=2&&abort(["usagXXXXXXXXX.........XXXXXXXXXe:",$0,F,F]*z);$*.
3eb0da7 +map{o=A%$*;F.read(XXXXXXXXX..XXXXXX..XXXXXXXX_1)});a=[i=0]*v=(s
17b62bc +=[s]+S.lines).sizeXXXXXXXXX..XXXXXX..XXXXXXXX;c=b=s.map{c=_1&&[
15b482a +c,?-+_1,i+=1]||0};XXXXXXXXX..XXXXXX..XXXXXXXXT.lines{|t|s.map{|
7051c79 +s|a<<((s)?[x=a[-1]XXXXXXXXX.........XXXXXXXXX,y=a[-v]].max+((f=
5db51d9 +s==t)?1:0):0);c,d=(XXXXXXXX..XXXXXXXXXXXXXXXf)?[v+1,z+t]:s&&(x>
930bc4a +y)?[1,?-+s]:[v,?++t]XXXXXXX..XXXXXXXXXXXXXX;b<<[b[-c],d,i+=1]}}
e80feef +;c=b[-1].flatten;b=c[(XXXXX..XXXXXXXXXXXX1..)%2];(b.map{_1[0]}*
5c77bf8 +E).scan(/\s{,3}([-+]\s{,XXXXXXXXXXXXXXX6})*[-+]\s{,3}/){n=c[2*i
9cb8e4c +=$`.size];o=o,B%[n%v+1-1/v,(m=c[2.*i+j=$&.size]-n)%v,T>""?n/v+1
7f12d23 +:0,m/v],b[i,j]}):(o=[];a,b=[A,B].map{_1.sub(?+){'\+'}%(['(\S+)'
dce2324 +]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
b297086 +]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
cb2076f +2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
4635125 +#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
1e32693 +an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
The original entry.rb
$ git log --oneline | ruby – test.patch
patching File sample.rb
Slide 79
Slide 79 text
• One more thing
“Most Useful”
mame3.rb
$ tail pd.rb
]*4)};$<.read=~//;F.write$2,(s=F.readlines$1;o<<[:patching,F,$2
]*z;(*,n,i,m=[*$~].map{_1.to_i};n+=m;($'=~/\A((-)|\+)?(.*\n)/;$
2?s[i-=1,1]=[]:$1?s[i-1,0]=$3:n-=1;i+=1;n-=1)while+n>0)while/\A
#{b}/=~$';s*E)while$'=~/^#{a}/);o):([*[?l]*799,1].shuffle*E).sc
an(/.{40}/));exit].gsub(/X.*X|\n(\h+\s)?\+?/,E=""))#TRICK2025]}
(`
--- pd.rb
+++ pd.rb
@@ -0,0 +1,1 @@
+dup=(`)
$ ruby entry.rb pd.rb
patching File pd.rb
pd.rb is also a patch for itself
by applying it…
Slide 80
Slide 80 text
• One more thing
“Most Useful”
mame3.rb
$ ruby pd.rb
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
lllllllllllllllllllllllllllll1llllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
llllllllllllllllllllllllllllllllllllllll
Spot the "difference"!
Slide 81
Slide 81 text
eto shinh yhara matz leonid flagitious mame tompng
score
Winner »
“Most Revolutionary”
『最も転回的で賞』
Don Yang
(omoikane)
7 9 10 9 10 8 10 9.00
9
Slide 82
Slide 82 text
“Most Revolutionary”
omoikane.rb
a=+Math::PI/13
#Z---z';#za-mRUBY
#A-ZaA-Mn--\[+>+>++
'"N-Z(\++\[->++++@"
b=\[->+> +>+>\[h_
p%{} eact
zoraq ;%{ GF. rin);
%{eb} r A R p *""\]
<<<{{{ }<\]++[ ->+>>>>>[40v
.tr(= ' ;eval(%w{r=u=b= y =0;%{
(ct;c ) ; ] <<->--<<< < < ] >>[>,
exi}; a * = A RGV.siz e > 0 ? -1:1;
z=[] ; A R G F .ea c h _ l i n e{|i
|i.eac h _ g r aph e m e _ c l u ster
{|j|i f ( k = j.o r d ) < 3 3 ; r+=k<
32?k==9? 8 - r%8 : k = = 1 0 | |k==13
?[u+=1,-r][ 1]: 0 : 1 ; e lse;z+=[[u,
r,j]];b+=r;y+=u;r+=1;end;}};if(s=z.si
ze)>0;b/=s;y/=s;m,n=z[0];i=Math::tan(
a/2);j=Math::sin(a);z.map!{|d|p=d[1]-
b;q=d[0]-y;p-=(i*q).round;m=[m,q+=(j*
p).round].min;n=[n,p-=(i*q).round].
min;[q,p,d[2]]};r=n;u=m;z.sort.eac
h{|d|p,b=d;r=(u
"tyvuts(}}.--.>--.>+.<++'
)b\40"gena.(c)2025<<<
#)#ehol""+a*.^_^
Slide 83
Slide 83 text
• This program is a ROT13 filter
– ROT13: A simple cipher
• Example: "hello" is encoded to "uryyb"
–ROT13 = rotate by pi/13
“Most Revolutionary”
omoikane.rb
A B C D E F G H I J K M O
L N P Q R S T U V W X Y Z
A B C D E F G H I J K M
O L
N P Q R S T U V W X Y Z
INCORRECT
Slide 84
Slide 84 text
• This program rotates a text file
“Most Revolutionary”
omoikane.rb
* * * *
* *
* *
* *
* *
* + !
* *
* *
* *
* *
* * * *
a=+Math::PI/13
#Z---z';#za-mRUBY
#A-ZaA-Mn--\[+>+>++
'"N-Z(\++\[->++++@"
b=\[->+> +>+>\[h_
p%{} eact
zoraq ;%{ GF. rin);
%{eb} r A R p *""\]
<<<{{{ }<\]++[ ->+>>>>>[40v
.tr(= ' ;eval(%w{r=u=b= y =0;%{
(ct;c ) ; ] <<->--<<< < < ] >>[>,
exi}; a * = A RGV.siz e > 0 ? -1:1;
z=[] ; A R G F .ea c h _ l i n e{|i
|i.eac h _ g r aph e m e _ c l u ster
{|j|i f ( k = j.o r d ) < 3 3 ; r+=k<
32?k==9? 8 - r%8 : k = = 1 0 | |k==13
?[u+=1,-r][ 1]: 0 : 1 ; e lse;z+=[[u,
r,j]];b+=r;y+=u;r+=1;end;}};if(s=z.si
ze)>0;b/=s;y/=s;m,n=z[0];i=Math::tan(
a/2);j=Math::sin(a);z.map!{|d|p=d[1]-
b;q=d[0]-y;p-=(i*q).round;m=[m,q+=(j*
p).round].min;n=[n,p-=(i*q).round].
min;[q,p,d[2]]};r=n;u=m;z.sort.eac
h{|d|p,b=d;r=(u
"tyvuts(}}.--.>--.>+.<++'
)b\40"gena.(c)2025<<<
#)#ehol""+a*.^_^
* * * *
* *
* *
* *
* !
* + *
* *
* *
* *
* *
* * * *
Rotated
$ ruby entry.rb test.txt
Slide 85
Slide 85 text
• This program rotates a text from stdin
“Most Revolutionary”
omoikane.rb
* * * *
* *
* *
* *
* *
* + !
* *
* *
* *
* *
* * * *
a=+Math::PI/13
#Z---z';#za-mRUBY
#A-ZaA-Mn--\[+>+>++
'"N-Z(\++\[->++++@"
b=\[->+> +>+>\[h_
p%{} eact
zoraq ;%{ GF. rin);
%{eb} r A R p *""\]
<<<{{{ }<\]++[ ->+>>>>>[40v
.tr(= ' ;eval(%w{r=u=b= y =0;%{
(ct;c ) ; ] <<->--<<< < < ] >>[>,
exi}; a * = A RGV.siz e > 0 ? -1:1;
z=[] ; A R G F .ea c h _ l i n e{|i
|i.eac h _ g r aph e m e _ c l u ster
{|j|i f ( k = j.o r d ) < 3 3 ; r+=k<
32?k==9? 8 - r%8 : k = = 1 0 | |k==13
?[u+=1,-r][ 1]: 0 : 1 ; e lse;z+=[[u,
r,j]];b+=r;y+=u;r+=1;end;}};if(s=z.si
ze)>0;b/=s;y/=s;m,n=z[0];i=Math::tan(
a/2);j=Math::sin(a);z.map!{|d|p=d[1]-
b;q=d[0]-y;p-=(i*q).round;m=[m,q+=(j*
p).round].min;n=[n,p-=(i*q).round].
min;[q,p,d[2]]};r=n;u=m;z.sort.eac
h{|d|p,b=d;r=(u
"tyvuts(}}.--.>--.>+.<++'
)b\40"gena.(c)2025<<<
#)#ehol""+a*.^_^
* * * *
* *
* *
* *
* *
* + *
* !
* *
* *
* *
* * * *
Clockwise
$ ruby entry.rb < test.txt
Slide 86
Slide 86 text
• This program works even if it rotates
“Most Revolutionary”
omoikane.rb
a=+Math::PI/13
#Z---z';#za-mRUBY
#A-ZaA-Mn--\[+>+>++
'"N-Z(\++\[->++++@"
b=\[->+> +>+>\[h_
p%{} eact
zoraq ;%{ GF. rin);
%{eb} r A R p *""\]
<<<{{{ }<\]++[ ->+>>>>>[40v
.tr(= ' ;eval(%w{r=u=b= y =0;%{
(ct;c ) ; ] <<->--<<< < < ] >>[>,
exi}; a * = A RGV.siz e > 0 ? -1:1;
z=[] ; A R G F .ea c h _ l i n e{|i
|i.eac h _ g r aph e m e _ c l u ster
{|j|i f ( k = j.o r d ) < 3 3 ; r+=k<
32?k==9? 8 - r%8 : k = = 1 0 | |k==13
?[u+=1,-r][ 1]: 0 : 1 ; e lse;z+=[[u,
r,j]];b+=r;y+=u;r+=1;end;}};if(s=z.si
ze)>0;b/=s;y/=s;m,n=z[0];i=Math::tan(
a/2);j=Math::sin(a);z.map!{|d|p=d[1]-
b;q=d[0]-y;p-=(i*q).round;m=[m,q+=(j*
p).round].min;n=[n,p-=(i*q).round].
min;[q,p,d[2]]};r=n;u=m;z.sort.eac
h{|d|p,b=d;r=(u
"tyvuts(}}.--.>--.>+.<++'
)b\40"gena.(c)2025<<<
#)#ehol""+a*.^_^
a=
##Z--+Math
'A-Za-z';#::PI
b="N-ZA-Mn-za-m/13
p%{\[->(\++\-\[+RUBY
zora} +> [->+>+>+
<%{ebq ; +>+++@+
]<<<{{} r %{ +>\["
eval(%w{ A RGF. each_
char{|c| p rint
(c.tr(a,b))} } *"");
exit;c = ' ]>++ <][; }<\\]
z=[}; a) ; ;eva[ a;a]+#pgn=%Y/
{|j|ac hA R A R->-->>>y\W{
32?ki f _ gG F GV.si<< [40f
?[u+==9?( k r a.ea cz e < ] =0;v
r,j]=1,- 8 -= j.ph e h _> 0 >>[%{
aze)>];b+r][ r%8o r dm e l i? -1>,
b/2);0;b/=r;y1]: : k ) <_ c n e:1;
;q=dj=Ma=s;y+=u;0 : 1= = 3 3l u {|i
p).r[0]-th::/=s;r+=1; ; e1 0 ; rster
minoundy;p-sin(m,n=zend; lse| |k+=k<
h{;[q,].mi=(i*a);z.[0];}};i;z+===13
*|d|pp,d[n;n=q).romap!i=Maf(s=[[u,
(p-u,b=d2]]}[n,p-und;{|d|th::z.si
b+1}),"\;r=(;r=n;=(i*m=[mp=d[tan(
"t;pri40"*ud}*"];u=t"\nac
ehola.(c)--.>");%p;r="
""+a*2025+.<+(]>
.^_^<<< +'
a=+Math::PI/13
#Z---z';#za-mRUBY
#A-ZaA-Mn--\[+>+>++
'"N-Z(\++\[->++++@"
b=\[->+> +>+>\[h_
p%{} eact
zoraq ;%{ GF. rin);
%{eb} r A R p *""\]
<<<{{{ }<\]++[ ->+>>>>>[40v
.tr(= ' ;eval(%w{r=u=b= y =0;%{
(ct;c ) ; ] <<->--<<< < < ] >>[>,
exi}; a * = A RGV.siz e > 0 ? -1:1;
z=[] ; A R G F .ea c h _ l i n e{|i
|i.eac h _ g r aph e m e _ c l u ster
{|j|i f ( k = j.o r d ) < 3 3 ; r+=k<
32?k==9? 8 - r%8 : k = = 1 0 | |k==13
?[u+=1,-r][ 1]: 0 : 1 ; e lse;z+=[[u,
r,j]];b+=r;y+=u;r+=1;end;}};if(s=z.si
ze)>0;b/=s;y/=s;m,n=z[0];i=Math::tan(
a/2);j=Math::sin(a);z.map!{|d|p=d[1]-
b;q=d[0]-y;p-=(i*q).round;m=[m,q+=(j*
p).round].min;n=[n,p-=(i*q).round].
min;[q,p,d[2]]};r=n;u=m;z.sort.eac
h{|d|p,b=d;r=(u
"tyvuts(}}.--.>--.>+.<++'
)b\40"gena.(c)2025<<<
#)#ehol""+a*.^_^
$ ruby entry.rb < entry.rb
$ echo uryyb | ruby rot13.rb
hello
This program is
a ROT13 filter
rot13.rb
entry.rb
Slide 87
Slide 87 text
• This program works even if it rotates
“Most Revolutionary”
omoikane.rb
a=+Math::PI/13
#Z---z';#za-mRUBY
#A-ZaA-Mn--\[+>+>++
'"N-Z(\++\[->++++@"
b=\[->+> +>+>\[h_
p%{} eact
zoraq ;%{ GF. rin);
%{eb} r A R p *""\]
<<<{{{ }<\]++[ ->+>>>>>[40v
.tr(= ' ;eval(%w{r=u=b= y =0;%{
(ct;c ) ; ] <<->--<<< < < ] >>[>,
exi}; a * = A RGV.siz e > 0 ? -1:1;
z=[] ; A R G F .ea c h _ l i n e{|i
|i.eac h _ g r aph e m e _ c l u ster
{|j|i f ( k = j.o r d ) < 3 3 ; r+=k<
32?k==9? 8 - r%8 : k = = 1 0 | |k==13
?[u+=1,-r][ 1]: 0 : 1 ; e lse;z+=[[u,
r,j]];b+=r;y+=u;r+=1;end;}};if(s=z.si
ze)>0;b/=s;y/=s;m,n=z[0];i=Math::tan(
a/2);j=Math::sin(a);z.map!{|d|p=d[1]-
b;q=d[0]-y;p-=(i*q).round;m=[m,q+=(j*
p).round].min;n=[n,p-=(i*q).round].
min;[q,p,d[2]]};r=n;u=m;z.sort.eac
h{|d|p,b=d;r=(u
"tyvuts(}}.--.>--.>+.<++'
)b\40"gena.(c)2025<<<
#)#ehol""+a*.^_^
/13
h::PIRUBY+
+Mat#za-m>+>+"
a=-z';--\[++++@h_
#Z--A-Mn\[->++>\[act
A-Za(\++ +> ein);
#"N-Z+> . r""\]b
'\[-> GF p *<\]>>[0;%{>,
%{{{{ }<][ >+>> y = >>[:1;
<<<%w| -u=b= < ]? -1{|i
] 0 n ester
var{b)]>val(->--
ze)>);j=]-y;min;]};r=)?n:[2];;%(]
a/2=d[0nd].d[2]=(u+.<<<
p)in;[|p,b"\40"\n";.>--2025
mh{|d-u),rint}}.--.(c).^_^
*(p1};puts("gena"+a*
b+"tyvb\40ehol"
) #)#
a=+Math::PI/13
#Z---z';#za-mRUBY
#A-ZaA-Mn--\[+>+>++
'"N-Z(\++\[->++++@"
b=\[->+> +>+>\[h_
p%{} eact
zoraq ;%{ GF. rin);
%{eb} r A R p *""\]
<<<{{{ }<\]++[ ->+>>>>>[40v
.tr(= ' ;eval(%w{r=u=b= y =0;%{
(ct;c ) ; ] <<->--<<< < < ] >>[>,
exi}; a * = A RGV.siz e > 0 ? -1:1;
z=[] ; A R G F .ea c h _ l i n e{|i
|i.eac h _ g r aph e m e _ c l u ster
{|j|i f ( k = j.o r d ) < 3 3 ; r+=k<
32?k==9? 8 - r%8 : k = = 1 0 | |k==13
?[u+=1,-r][ 1]: 0 : 1 ; e lse;z+=[[u,
r,j]];b+=r;y+=u;r+=1;end;}};if(s=z.si
ze)>0;b/=s;y/=s;m,n=z[0];i=Math::tan(
a/2);j=Math::sin(a);z.map!{|d|p=d[1]-
b;q=d[0]-y;p-=(i*q).round;m=[m,q+=(j*
p).round].min;n=[n,p-=(i*q).round].
min;[q,p,d[2]]};r=n;u=m;z.sort.eac
h{|d|p,b=d;r=(u
"tyvuts(}}.--.>--.>+.<++'
)b\40"gena.(c)2025<<<
#)#ehol""+a*.^_^
$ ruby entry.rb entry.rb
$ ruby msg.rb
genafpraqragny vzoebtyvb ehol
$ ruby msg.rb | ruby rot13.rb
transcendental imbroglio ruby
This program produces
an encrypted message
msg.rb
entry.rb
Slide 88
Slide 88 text
• One more thing
– This program also works as a Brainf*ck program
“Most Revolutionary”
omoikane.rb
a=+Math::PI/13
#Z---z';#za-mRUBY
#A-ZaA-Mn--\[+>+>++
'"N-Z(\++\[->++++@"
b=\[->+> +>+>\[h_
p%{} eact
zoraq ;%{ GF. rin);
%{eb} r A R p *""\]
<<<{{{ }<\]++[ ->+>>>>>[40v
.tr(= ' ;eval(%w{r=u=b= y =0;%{
(ct;c ) ; ] <<->--<<< < < ] >>[>,
exi}; a * = A RGV.siz e > 0 ? -1:1;
z=[] ; A R G F .ea c h _ l i n e{|i
|i.eac h _ g r aph e m e _ c l u ster
{|j|i f ( k = j.o r d ) < 3 3 ; r+=k<
32?k==9? 8 - r%8 : k = = 1 0 | |k==13
?[u+=1,-r][ 1]: 0 : 1 ; e lse;z+=[[u,
r,j]];b+=r;y+=u;r+=1;end;}};if(s=z.si
$ ruby bf.rb entry.rb
TRICK
Brainf*ck
code fragments
Slide 89
Slide 89 text
• Judges' comments?
“Most Revolutionary”
omoikane.rb
Slide 90
Slide 90 text
Conclusion
Slide 91
Slide 91 text
Honorable mentions（選外佳作）
“Most Musical” – Yutaka HARA
“Worst Bug Report” – Zeroichi Arakawa
“Least Truthful” – Kensuke Imamura (@nsfisis)
“Lowest Entropy” – Koichi Sasada
“Most Cerebral” – Kensuke Imamura (@nsfisis)
“Best Shapeshifter” – Kota Noda
“Best Repetition” – chobishiba
“Most International” – osatoh
“Most Visual” – Mari Imaizumi
“Most Adaptive” – Yoh Osaki
Slide 92
Slide 92 text
Judges’ awards
flagitious award:
“Best Bonus” – Yusuke Endoh
shinh award:
“Most it-tensive” – Koichi Sasada
yhara award:
“Most Natural” – beta_chelsea
tompng award:
“Most Uncovered” – Yusuke Endoh
eto award:
“Most Ruby-on-Ruby” – Kensuke Imamura (@nsfisis)
matz award:
“Best Fadeaway” – Shinichiro Hamaji
mame award:
“Most Shifted” – Yutaka HARA
leonid award:
“Most Harmful” – yoshi-taka
Slide 93
Slide 93 text
Dishonorable Top 5
“Most Revolutionary”
– Don Yang
“Most Useful”
– Yusuke Endoh
“Most Arithmetic”
– Tomoya Ishida
4th “Best ASMR”
– Tomoya Ishida
“Most Maintainable”
– Tomoya Ishida
5th
Slide 94
Slide 94 text
Prize?
• Top five entries will be added into the "sample" directory of
the official Ruby repository
– They will be included in the Ruby 3.5.0 package
Slide 95
Slide 95 text
Conclusion
• The winning entries will be published soon at:
• Thank you for all participants!
No k!
http://github.com/tric /trick2025/