题目链接:https://codeforces.com/gym/105911/problem/M
题目背景: n 枚硬币,小T翻转其中 k 枚,既 k 枚朝下,其余朝上,不知道是哪 k 枚,可以对每枚硬币执行一下操作之一:
放入第一…
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Today there is a growing awareness that mental well-being needs to be given as much attention as physical health. In the contemporary world where change is constant and knowledge is ever-expanding, mental well-being has become increasingly importan…