Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
競技プログラミングで見るRubyの豊かさ
Search
haruguchi-yuma
August 24, 2024
1
70
競技プログラミングで見るRubyの豊かさ
haruguchi-yuma
August 24, 2024
Tweet
Share
More Decks by haruguchi-yuma
See All by haruguchi-yuma
fukuoka.rb 0x000回 LT資料
haruguchi
0
130
shikujiri-lt
haruguchi
0
1.5k
Featured
See All Featured
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
356
29k
Building Your Own Lightsaber
phodgson
104
6.2k
Product Roadmaps are Hard
iamctodd
PRO
50
11k
A Philosophy of Restraint
colly
203
16k
Side Projects
sachag
452
42k
Gamification - CAS2011
davidbonilla
80
5.1k
How to Ace a Technical Interview
jacobian
276
23k
StorybookのUI Testing Handbookを読んだ
zakiyama
28
5.4k
Code Reviewing Like a Champion
maltzj
521
39k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
280
13k
Rails Girls Zürich Keynote
gr2m
94
13k
A better future with KSS
kneath
238
17k
Transcript
!IBSVHVDIJ ڝٕϓϩάϥϛϯάͰݟΔ 3VCZͷ๛͔͞ େࡕ3VCZձٞɹ 4BU
!IBSVHVDIJ wגࣜձࣾӬγεςϜϚωδϝϯτ wڭһˠ8FCΤϯδχΞ wڝϓϩྺ
None
ڝϓϩ "U$PEFS ͱ
ೖྗˠग़ྗ ͳΜ͔͢Δ
ͨͱ͑
ͨͱ͑
ͨͱ͑
ͨͱ͑
None
None
None
ࠓͷ ɾ"U$PEFSͷௐ·ͨ͠ ɾͦͷத͔Βհ
େࣄʹ͍ͨ͠Ձ؍ Մಡੑ ֦ுੑ อकੑ
Մಡੑ ֦ுੑ อकੑ ಡΈʹ͘͘ ෳࡶͰ͘ ʹಛԽͨ͠ ίονʂʂ େࣄʹ͍ͨ͠Ձ؍
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@ ))ͷΛٻΊ͍ͨ
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@ ))ͷΛٻΊ͍ͨ ೖྗྫ 42 3 ग़ྗྫ 39
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@ ))ͷΛٻΊ͍ͨ ೖྗྫ 42 3 ग़ྗྫ 39
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@ ))ͷΛٻΊ͍ͨ
ϙΠϯτ จࣈϦςϥϧ? joinͷΤΠϦΞε*
ϙΠϯτ จࣈϦςϥϧ? joinͷΤΠϦΞε*
ϙΠϯτ ίϚϯυͱ࣮ͯ͠ߦ evalͰअѱ͞Λԋग़
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@ ))ͷΛٻΊ͍ͨ ࠶ܝ ͬͱ͘ॻ͚ΔΑͱ͍͏ਓ͕͍ͨΒڭ͍͑ͯͩ͘͞
ͭͷ୯ޠ͕ۭന۠ΓͰ༩͑ΒΕΔɻ ֤୯ޠͷઌ಄Λͭͳ͛ɺେจࣈͰग़ྗ͍ͨ͠
ೖྗྫ atcoder beginner contest IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B ͭͷ୯ޠ͕ۭന۠ΓͰ༩͑ΒΕΔɻ ֤୯ޠͷઌ಄Λͭͳ͛ɺେจࣈͰग़ྗ͍ͨ͠
ೖྗྫ atcoder beginner contest IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B ͭͷ୯ޠ͕ۭന۠ΓͰ༩͑ΒΕΔɻ ֤୯ޠͷઌ಄Λͭͳ͛ɺେจࣈͰग़ྗ͍ͨ͠
ೖྗྫ atcoder beginner contest IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B ͭͷ୯ޠ͕ۭന۠ΓͰ༩͑ΒΕΔɻ ֤୯ޠͷઌ಄Λͭͳ͛ɺେจࣈͰग़ྗ͍ͨ͠ ग़ྗྫ
ABC
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B ͭͷ୯ޠ͕ۭന۠ΓͰ༩͑ΒΕΔɻ ֤୯ޠͷઌ಄Λͭͳ͛ɺେจࣈͰग़ྗ͍ͨ͠
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B ͭͷ୯ޠ͕ۭന۠ΓͰ༩͑ΒΕΔɻ ֤୯ޠͷઌ಄Λͭͳ͛ɺେจࣈͰग़ྗ͍ͨ͠ ͏গ͘͠Ͱ͖ͦ͏ ಡΈʹ͘͘
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B ͭͷ୯ޠ͕ۭന۠ΓͰ༩͑ΒΕΔɻ ֤୯ޠͷઌ಄Λͭͳ͛ɺେจࣈͰग़ྗ͍ͨ͠
ϙΠϯτ େจࣈͷมord
ϙΠϯτ େจࣈͷมord ڝϓϩͰكʹΑ͘͏ʂ
ϙΠϯτ ඪ४ग़ྗputc
" # $ͷΈ͔ΒͳΔ/จࣈͷจࣈྻ4 " # $͕ճҎ্ग़ݱ͢ΔͷԿจࣈʁ
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B ೖྗྫ 9 AACCCACBB " # $ͷΈ͔ΒͳΔ/จࣈͷจࣈྻ4 "
# $͕ճҎ্ग़ݱ͢ΔͷԿจࣈʁ
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B ೖྗྫ 9 AACCCACBB 123456789 ग़ྗྫ 8
" # $ͷΈ͔ΒͳΔ/จࣈͷจࣈྻ4 " # $͕ճҎ্ग़ݱ͢ΔͷԿจࣈʁ
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B " # $ͷΈ͔ΒͳΔ/จࣈͷจࣈྻ4 " # $͕ճҎ্ग़ݱ͢ΔͷԿจࣈʁ
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B " # $ͷΈ͔ΒͳΔ/จࣈͷจࣈྻ4 " # $͕ճҎ্ग़ݱ͢ΔͷԿจࣈʁ
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B " # $ͷΈ͔ΒͳΔ/จࣈͷจࣈྻ4 " # $͕ճҎ্ग़ݱ͢ΔͷԿจࣈʁ indexʹ߹ܭCZUFͬͯΔʂʂ
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B " # $ͷΈ͔ΒͳΔ/จࣈͷจࣈྻ4 " # $͕ճҎ্ग़ݱ͢ΔͷԿจࣈʁ
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B " # $ͷΈ͔ΒͳΔ/จࣈͷจࣈྻ4 " # $͕ճҎ্ग़ݱ͢ΔͷԿจࣈʁ $_ ͕3ՕॴʹݱΕΔͷ
IUUQTBUDPEFSKQDPOUFTUTBCDUBTLTBCD@B " # $ͷΈ͔ΒͳΔ/จࣈͷจࣈྻ4 " # $͕ճҎ্ग़ݱ͢ΔͷԿจࣈʁ
ϙΠϯτ Regexp#~ $_ͱͷؒͰϚονΛͱΔ
ϙΠϯτ ΠϯΫϦϝϯτ bitస ୯߲ԋࢉ -
·ͱΊ·͢
·ͱΊ ɾ͍ΖΜͳॻ͖ํ͕Ͱ͖Δ ɾϝιουͷ๛͞ ɾ߈ུຊʹࡌͬͯͳ͍ॻ͖ํΛ୳ָ͢͠͞
3VCZJTGVO ,ZPQSPJTGVOTP UBLFUIFDIBMMFOHF