E. New Reform time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Berland has n cities connected by m bidirectional roads. No road connects a city to itself, and each pair of cities is connecte…

B. Balls Game Time Limit: 1 Sec  Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/430/problem/B Description Iahub is training for the IOI. What is a better way to train than playing a Zuma-like game? There are n balls put in a row. Each ball i…

E. Clockwork Bomb 题目连接: http://www.codeforces.com/contest/650/problem/E Description My name is James diGriz, I'm the most clever robber and treasure hunter in the whole galaxy. There are books written about my adventures and songs about my operations…

E. Table Compression 题目连接: http://www.codeforces.com/contest/651/problem/E Description Little Petya is now fond of data compression algorithms. He has already studied gz, bz, zip algorithms and many others. Inspired by the new knowledge, Petya is now…

D. Secret Passwords One unknown hacker wants to get the admin's password of AtForces testing system, to get problems from the next contest. To achieve that, he sneaked into the administrator's office and stole a piece of paper with a list of n passwo…

E. New Reform 题目连接: http://www.codeforces.com/contest/659/problem/E Description Berland has n cities connected by m bidirectional roads. No road connects a city to itself, and each pair of cities is connected by no more than one road. It is not guara…

E. New Reform time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Berland has n cities connected by m bidirectional roads. No road connects a city to itself, and each pair of cities is connecte…

题目链接: 题目 E. New Reform time limit per test 1 second memory limit per test 256 megabytes inputstandard input outputstandard output 问题描述 Berland has n cities connected by m bidirectional roads. No road connects a city to itself, and each pair of cities…

题意:给你n个点,m条边,然后让你使得这个这个图成为一个协和图,需要加几条边.协和图就是,如果两个点之间有一条边,那么左端点与这之间任意一个点之间都要有条边. 思路:通过并查集不断维护连通量的最大编号的节点,然后遍历即可. 代码: #include<bits/stdc++.h> using namespace std; #define int long long #define N 1005000 int f[N];int n,m; int getf(int v){// 并查集模板 if(v=…

E. Table Compression time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Little Petya is now fond of data compression algorithms. He has already studied gz, bz, zipalgorithms and many others.…