Codeforces Round #521 (Div. 3) A. Frog Jumping 题意：一只青蛙在坐标O点，给出两个数字a和b，并给...
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Codeforces Round #521 (Div. 3) A. Frog Jumping 题意：一只青蛙在坐标O点，给出两个数字a和b，并给...
第一次打CF，听大佬说是这场是教育场，看时间比较合适就打了。Educational Codeforces Round 54 [Rated for...
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