Pinely Round 4 (Div. 1 + Div. 2) by potato167

LGM 剥奪かな？
上振れていたので仕方ないや
でも悲しいね
3009(-78) ギリギリセーフ後がない
競技プログラミング
競プロ

[@user-br7hy4kz6d]

bro i love you note, it give me your experience to across a problem

[@charanteja1160]

Have you came across similar problem like B (and problem) ?? How did you do that fast ??

[@potato167]

Just listing the necessary conditions makes it optimal.
I think there are a lot of problems like that (especially bit problems).
I can't give a concrete example of such a problem...