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L3-016 二叉搜索树的结构 （30 分) 二叉搜索树或者是一棵空树，或者是具有下列性质的二叉树： 若它的左子树不空，则左子树上所有结点的值均小于它的根结点的值；若它的右子树不空，则右子树上所有结点的值均大于它的根结点的值；它的左、右子树也分别为二叉搜索树。（摘自百度百科） 给定一系列互不相等的整 阅读全文
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题目链接：https://atcoder.jp/contests/agc030/tasks/agc030_b 题意： 在一个有 L 个单位长度的圆上有 n 个点， 小明位于 0 位置的人要按照步骤把 n 个点走完。 圆的单位下标为[0, L-1]，每个点有一个位置x[i] 。 步骤： 1、如果所有的 阅读全文
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There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts of the i 阅读全文
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问题 H: 【哈希和哈希表】Antisymmetry 题目描述 对于一个0/1字符串，如果将这个字符串0和1取反后，再将整个串反过来和原串一样，就称作「反对称」字符串。比如00001111和010101就是反对称的，而1001就不是。现在给出一个长度为n的0/1字符串，求它有多少个子串是反对称的，注 阅读全文
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Saving Tang Monk II Saving Tang Monk II 时间限制:1000ms 单点时限:1000ms 内存限制:256MB 描述 《Journey to the West》(also 《Monkey》) is one of the Four Great Classical 阅读全文
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贵有恒，何必三更起五更眠；最无益，莫过一日曝十日寒。 8010: Mountaineers 题目描述 The Chilean Andes have become increasingly popular as a destination for backpacking and hiking. Man 阅读全文
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131072K After the long vacation, the maze designer master has to do his job. A tour company gives him a map which is a rectangle. The map consists of 阅读全文
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262144K Mur loves hash algorithm, and he sometimes encrypt another one's name, and call him with that encrypted value. For instance, he calls Kimura K 阅读全文
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Ryuji is not a good student, and he doesn't want to study. But there are n books he should learn, each book has its knowledge a[i]a[i]. Unfortunately, 阅读全文
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Morgana is learning computer vision, and he likes cats, too. One day he wants to find the cat movement from a cat video. To do this, he extracts cat f 阅读全文