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A. Death Note A. Death Note You received a notebook which is called Death Note. This notebook has infinite number of pages. A rule is written on the l 阅读全文
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A. Points in Segments time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output A. Points in Segmen 阅读全文
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Problem B. Harvest of Apples Problem Description There are n apples on a tree, numbered from 1 to n.Count the number of ways to pick at most m apples. 阅读全文
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Teemo's dream Teemo decides to use his money to conquer the universe. It is known that there are m planets that humans can reach at present. They are 阅读全文
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A 签到 奇数不变,偶数减一 B. Polycarp's Practice n个数,去k个区间,是的区间的最大值之和最大。 直接去最大的k个数就行。 C. Three Parts of the Array n个数,划分为三个区间,可以为空,求第一个区间之和与第三区间之和相同时,最大值是多少。 1至n 阅读全文
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模拟这个 B Rolling The Polygon Bahiyyah has a convex polygon with nn vertices P_0, P_1, \cdots, P_{n-1}P0,P1,⋯,Pn−1 in the counterclockwise order.Two v 阅读全文