容斥原理求非约数

容斥原理求非约数问题:给出一个数n，求1到...     阅读全文
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Mogician_Jeff Apr 12, 2018
算法, 数论

字典树

字典树字典树可以解决词频统计、前缀是否重复等问题。如图，我们可以...     阅读全文
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Mogician_Jeff Apr 12, 2018
算法, 数据结构, 树

快速幂/快速幂取膜

快速幂/快速幂取膜     阅读全文
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Mogician_Jeff Apr 12, 2018
算法, 数论

矩阵快速幂

矩阵快速幂矩阵快速幂可以解决一些递推问题。     阅读全文
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Mogician_Jeff Apr 12, 2018
算法, 数论

并查集

并查集并查集是一种树型的数据结构，用于处理一些不相交集合（Disjoin...     阅读全文
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Mogician_Jeff Apr 12, 2018
算法, 数据结构

二叉树

二叉树把满足以下两个条件的树型结构叫做二叉树（Binary Tree）：...     阅读全文
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Mogician_Jeff Apr 12, 2018
算法, 数据结构, 树

UVA816 三状态BFS

UVA816 三状态BFS     阅读全文
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Mogician_Jeff Apr 12, 2018
算法, BFS/DFS

筛选法与预处理

问题引入     阅读全文
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Mogician_Jeff Nov 16, 2017
算法, 数论

HDOJ2602——01背包问题

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Mogician_Jeff Nov 16, 2017
算法, 动态规划
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