题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1027 题目大意：求1-N的数列的第M个有序全排列 关键思想：用STL的next_permutation函数。或者康托展开 …

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1072 题目大意：给一个地图，从起点开始往终点走，6s后会爆炸，当遇到’4’时，爆炸倒计时会重置为6…

D. Vanya and Treasure 题目连接： http://www.codeforces.com/contest/677/problem/D Description Vanya is in the palace…

B. Different is Good 题目连接： http://www.codeforces.com/contest/672/problem/B Description A wise man told Kerem &…

E. Bear and Forgotten Tree 2 题目连接： http://www.codeforces.com/contest/653/problem/E Description A tree is a con…

需要处理好字典序最小的路径     HDU1385(ZOJ1456)-Minimum Transport     //Hdu1385-ZOJ1456 //给定邻接矩阵，求给定起点到…

2038: [2009国家集训队]小Z的袜子(hose) 题目连接： http://www.lydsy.com/JudgeOnline/problem.php?id=2038 Descriptionww.co 作为一个生…

Lawrence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Other…

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1029 题目大意：找出一串数字序列(长度为奇数)中出现次数>=(N+1)/2的数字并输出。 关键思想：map统计+遍历…

zxa and leaf 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5682 Description zxa have an unrooted tree with n…

Running RabbitsTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Othe…

Intersection Time Limit: 4000/4000 MS (Java/Others) Memory Limit: 512000/512000 K (Java/Others) Total Submissi…