RubyͰڝٕϓϩάϥϛϯά(ೖฤ)RubyKaigi 2016 Kyoto LT (2016-09-10)yhara (Yutaka Hara)RubyKaigi 2016 Kyoto LT (2016-09-10) 1
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NaCl দߐຊࣾ AtCoderձ• ਫ༵18:00-20:00• 4,5ਓͰͬͯΔ• ݴޠࣗ༝ (͍·ͷͱ͜ΖΈΜͳRuby)RubyKaigi 2016 Kyoto LT (2016-09-10) 2
ڝٕϓϩάϥϛϯάͬͯʁRubyKaigi 2016 Kyoto LT (2016-09-10) 3
ϓϩάϥϛϯάίϯςετRubyKaigi 2016 Kyoto LT (2016-09-10) 4
݅Λຬͨ͢ϓϩάϥϜΛɺ͘ɾਖ਼֬ʹهड़͢ΔڝٕRubyKaigi 2016 Kyoto LT (2016-09-10) 5
C(++, #)ͱJava͚ͩ͡Όͳ͍ͷʁRubyKaigi 2016 Kyoto LT (2016-09-10) 6
RubyͰࢀՃͰ͖ΔRubyKaigi 2016 Kyoto LT (2016-09-10) 7
• Sphere Online Judge• Aizu Online Judge• yukicoder• AtCoder ←ࠓ͜ΕΛհRubyKaigi 2016 Kyoto LT (2016-09-10) 8
Ruby 2.3.0͕ೖͬͯΔRubyKaigi 2016 Kyoto LT (2016-09-10) 9
Կ͔ΒΕ͍͍ͷʁRubyKaigi 2016 Kyoto LT (2016-09-10) 10
• AtCoder Grand Contest• AtCoder Regular Contest• AtCoder Beginner Contest• AtCoder Typical ContestRubyKaigi 2016 Kyoto LT (2016-09-10) 11
Βͳ͍RubyKaigi 2016 Kyoto LT (2016-09-10) 12
աڈΛΔRubyKaigi 2016 Kyoto LT (2016-09-10) 13
• ͖ͳͱ͖ʹͰ͖Δ• যΒͳͯ͘ࡁΉRubyKaigi 2016 Kyoto LT (2016-09-10) 14
• AtCoder Grand Contest• AtCoder Regular Contest• AtCoder Beginner Contest• AtCoder Typical ContestRubyKaigi 2016 Kyoto LT (2016-09-10) 15
AtCoder Beginner Contest• A: ָউ• B: ؆୯• C: ॳڃ• D: தڃ(Γͨ͑͋͝Δ)※ճʹΑͬͯқʹඍົͳ͕ࠩ͋Γ·͢(͍͖ͳΓ͍͠ճҾ͍ͯམͪࠐ·ͳ͍Α͏ʹ)RubyKaigi 2016 Kyoto LT (2016-09-10) 16
RubyͩͱλΠϜΞτͦ͠͏…ʁRubyKaigi 2016 Kyoto LT (2016-09-10) 17
ͦΕͳΓઓ͑ΔRubyKaigi 2016 Kyoto LT (2016-09-10) 18
ΞϧΰϦζϜେࣄRubyKaigi 2016 Kyoto LT (2016-09-10) 19
ྫɿҰྻΦηϩ(C)RubyKaigi 2016 Kyoto LT (2016-09-10) 20
ҰྻΦηϩ• NݸͷۨͱɺQݸͷϨϯδ͕༩͑ΒΕΔ• ֤ൣғΛͻͬ͘Γฦͨ͠ͱ͖ͷ࠷ऴঢ়ଶΛٻΊΑ●●●●●●●●●1..42..68..9ɹɹ↓○●●●○○●○○RubyKaigi 2016 Kyoto LT (2016-09-10) 21
֤ൣғʹ͍ͭͯۨΛసͤ͞Ε͍͍͚ͩ͡ΌͶʁranges.each do |r|r.each do |i|line[i] = !line[i]endendRubyKaigi 2016 Kyoto LT (2016-09-10) 22
ͱ͜Ζ͕RubyKaigi 2016 Kyoto LT (2016-09-10) 23
• Φηϩ͕(࠷େ)20ສݸ͋Δ• ൣғ(࠷େ)20ສݸ͋ΔRubyKaigi 2016 Kyoto LT (2016-09-10) 24
ेԯճɺస͠ͳ͍ͱ͍͚ͳ͍ranges.each do |r| # <- 20ສճr.each do |i| # <- ͦΕͧΕສճ͘Β͍line[i] = !line[i]endendRubyKaigi 2016 Kyoto LT (2016-09-10) 25
⏰ ੍ݶ࣌ؒ2ඵRubyKaigi 2016 Kyoto LT (2016-09-10) 26
͏·͍Γ͔ͨ৭͕มΘΔͱ͜Ζ͚ͩΛ͓֮͑ͯ͘2 10001 23005↓ɹɹɹɹ↓ɹɹ↓○●●...●○...○●●●RubyKaigi 2016 Kyoto LT (2016-09-10) 27
௨ͬͨʂRubyKaigi 2016 Kyoto LT (2016-09-10) 28
RubyͰڝϓϩͰ͖Δͧ !(গͳ͘ͱBeginner ContestͳΒ)RubyKaigi 2016 Kyoto LT (2016-09-10) 29
! ༨ஊ !RubyKaigi 2016 Kyoto LT (2016-09-10) 30
RubyKaigi 2016 Kyoto LT (2016-09-10) 31
ABC037-D• 1000x1000ͷ໎࿏Λ୳ࡧ͢Δ• νϟϨϯδϟʔٻΉ• Ruby33ഒ͘ͳΔͱ͍͏ᷚͳͷͰ͖ͬͱ௨ΔΑ͏ʹͳΔͣʁRubyKaigi 2016 Kyoto LT (2016-09-10) 32
Crystalͩͱ௨Δ(͕͢͞)※CrystalɿRubyʹΑ͘ࣅͨ੩తܕ͚ݴޠRubyKaigi 2016 Kyoto LT (2016-09-10) 33
pypy2௨ͬͯΔ※pypy2ɿPythonॲཧܥͷҰͭRubyKaigi 2016 Kyoto LT (2016-09-10) 34
Python3!?RubyKaigi 2016 Kyoto LT (2016-09-10) 35
RubyKaigi 2016 Kyoto LT (2016-09-10) 36
RubyKaigi 2016 Kyoto LT (2016-09-10) 37
RubyKaigi 2016 Kyoto LT (2016-09-10) 38
(ྑ͍ࢠਅࣅ͠ͳ͍Α͏ʹ !)RubyKaigi 2016 Kyoto LT (2016-09-10) 39