[일반] 코드포스 풀이방송(Codeforces Round #631 ~Div1C)

[Gravekp..(gravekper)]

https://www.youtube.com/watch?v=Zl9eAphB4yI

코드포스 풀이방송(Codeforces Round #631 ~Div1C) + A,B 즉석 풀이
진행: Gravekper, pichulia

https://codeforces.com/contest/1329
https://codeforces.com/contest/1330