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Codeforces

Codeforces (https://codeforces.com/) の問題解説・参加記。

Educational Codeforces Round 36 F - Imbalance Value of a Tree

Codeforces Round 616 D - Coffee Varieties

Educational Codeforces Round 43 D - Degree Set

Codeforces Round #190 C - Ciel the Commander

Educational Codeforces Round 76 G - Divisor Set

Codeforces Round 614 C - Xenon's Attack on the Gangs

Educational Codeforces Round 73 E - Game With String

Codeforces Round 613 F - Classical?

Educational Codeforces Round 78 F - Cards

Educational Codeforces Round 79 F - New Year and Handle Change