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c#(1) codeforces(130) dp(2) map(2) RMQ(1) 一些神奇的东西(1) 三分(1) 前缀和(1) 区间dp(1) 博弈(2) 大数(1) 平面几何(1) 并查集(1) 快数幂(1) 总结(1) 打表(1) 找规律(4) 数学(8) 暴力(1) 最小公约数(1) 最小生成树(1) 杭电(4) 浅谈(8) 深度优先搜索(1) 牛客(10) 组合数(1) 网络流最大流(2) 题解(3)

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全部文章 / 未归档（共421篇）

C. Swap Letters

链接：https://codeforces.com/contest/1215/problem/C Monocarp has got two strings ss and tt having equal length. Both strings consist of lowercase Latin ...

2020-09-15

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C. Paint the Digits

You are given a sequence of nn digits d1d2…dnd1d2…dn. You need to paint all the digits in two colors so that: each digit is painted either in the c...

2020-09-15

0 440

马拉车模板

很早就听说过马拉车算法，但一直没去看，之前因为打2017哈尔滨A题时一直过不了，听学长说可以用马拉车+树状数组过才开始看马拉车，找了个比较好懂的板子，鼓捣半天，结果洛谷板子题都过不了，还是回过头看原理，还好最后过了 #include <bits/stdc++.h> using name...

2020-09-15

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ACM算法目录

ACM 所有算法数据结构栈，队列，链表哈希表，哈希数组堆，优先队列双端队列可并堆左偏堆二叉查找树 Treap 伸展树并查集集合计数问题二分图的识别平衡二叉树二叉排序...

2020-09-15

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Comet OJ - Contest #11Business

链接：https://cometoj.com/contest/67/problem/B?problem_id=3796 题目描述 ※ 简洁题意在分隔线下方一张笑盈盈的脸挡住了替罪羊树的去路，那不怀好意的笑容使困倦的银发少女皱了皱眉。「 sgt ，你有多长时间没打理过那些可怜的节点了？恕...

2020-09-15

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B. Filling the Grid

B. Filling the Grid input standard input output standard output Suppose there is a h×wh×w grid consisting of empty or full cells. Let's make some...

2020-09-15

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C. Primes and Multiplication

C. Primes and Multiplication Let's introduce some definitions that will be needed later. Let prime(x)prime(x) be the set of prime divisors of xx. Fo...

2020-09-15

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组合数

链接：https://ac.nowcoder.com/acm/contest/1099/B 组合数时间限制：C/C++ 1秒，其他语言2秒空间限制：C/C++ 32768K，其他语言65536K Special Judge, 64bit IO Format: %lld 题目描述给出 n...

2020-09-15

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B2. Social Network (hard version)

B2. Social Network (hard version) 链接：https://codeforces.com/contest/1234/problem/B2 The only difference between easy and hard versions are constra...

2020-09-15

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E. Minimizing Difference

链接：https://codeforces.com/contest/1244/problem/E You are given a sequence a1,a2,…,ana1,a2,…,an consisting of nn integers. You may perform the follow...

2020-09-15

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