Strange Country II Time Limit: 1 Second      Memory Limit: 32768 KB      Special Judge You want to visit a strange country. There are n cities in the country. Cities are numbered from 1 to n. The unique way to travel in the country is taking planes.…

链接:http://www.icpc.moe/onlinejudge/showProblem.do?problemCode=3332 本文链接:http://www.cnblogs.com/Ash-ly/p/5454611.html 题意: 给你一个N,代表含有N个点的竞赛图,接着的N * (N- 1) / 2行两个点u, v,代表存在有向边<u,v>,问是否能构造出来一个哈密顿通路. 思路: 竞赛图一定含有哈密顿通路,不一定含有哈密顿回路.则不可能出现不存在的情况,直接构造就可以,至于方法可…

You want to visit a strange country. There are n cities in the country. Cities are numbered from 1 to n. The unique way to travel in the country is taking planes. Strangely, in this strange country, for every two cities A and B, there is a flight fro…

这题点的个数(<=50)有限, 所以可以纯暴力DFS去搜索 //#pragma comment(linker, "/STACK:16777216") //for c++ Compiler #include <stdio.h> #include <iostream> #include <fstream> #include <cstring> #include <cmath> #include <stack> #…

You want to visit a strange country. There are n cities in the country. Cities are numbered from 1 to n. The unique way to travel in the country is taking planes. Strangely, in this strange country, for every two cities A and B, there is a flight fro…

题目链接: 题目 Escape Time II Time Limit: 20 Sec Memory Limit: 256 MB 问题描述 There is a fire in LTR ' s home again. The fire can destroy all the things in t seconds, so LTR has to escape in t seconds. But there are some jewels in LTR ' s rooms, LTR love jewe…

题目: http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3356 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=26732#problem/D Football Gambling II Time Limit: 3 Seconds      Memory Limit: 65536 KB The 2010 FIFA World Cup toke place betw…

http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=4744 Escape Time II Time Limit: 2 Seconds      Memory Limit: 65536 KB There is a fire in LTR ’ s home again. The fire can destroy all the things in t seconds, so LTR has to escape in t second…

There is a hive in the village. Like this. There are 8 columns(from A to H) in this hive. Different colums have the same number of grids. Every grid has its own coordinate, which is formed by two uppercases, representing the row index and the column…

欧拉函数. #include<iostream> #include<stdio.h> #include<string.h> #include<algorithm> #define MAXSIZE 100003 #define N 100003 using namespace std; ]; ]; long long cn; void sushu() { memset(flag,,sizeof(flag)); cn=; long long i,j; ;i<…