Excellent! 215 posts in total. Keep on posting.

判断一个数是否为2的幂

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Codeforces Round 499 (Div. 2)

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Codeforces922E

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Educational Codeforces Round 47 Div2

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Educational Codeforces Round 46 (Rated for Div. 2)

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Codeforces999 D. Equalize the Remainders

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Codeforces922 D.Nastya and a Game

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Codeforces491 Div2

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Codeforces Round 496 Div3

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Codeforces Round 493 (Div. 2)

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