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- Norifumi Homma@norifumi
Rubyが好きですが、他の言語も嫌いでは無いです。
- Orakaro@Orakaro
Pythonista and vimmer
- まつもと ゆきひろ@yukihiro_matz
Rubyのパパ
- 高橋 直大@chokudai
AtCoder Inc. CEO Imagine Cup 2008 Algorithm 3rd place. TopCoder Open 2010/2017 Marathon 2nd place. ICFPC 2013/2015/2016/2018 Winner