C. Tournament link http://codeforces.com/contest/878/problem/C description Recently a tournament in k kinds of…

Going Home Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 13981   Accepted: 7156 Descr…

　　题意有点难读懂   //网络流-EK算法-ACM计算机工厂-构图重点 //Time:0Ms Memory:208K #include <iostream> #include<cstring…

D1. Magic Powder – 1 题目连接： http://www.codeforces.com/contest/670/problem/D1 Description This problem is …

Scout YYF I Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 3723   Accepted: 928 Descri…

求一条蛇到(1,1)的最短路长，题目不简单，状态较多，需要考虑状态压缩，ZOJ的数据似乎比POj弱一些     POJ1324(ZOJ1361)-Holedox Moving 　　题意：一条已知初始状…

Dire Wolf Time Limit: 5000/5000 MS (Java/Others) Memory Limit: 512000/512000 K (Java/Others) Total Submission(…

C. Dreamoon and Sums 题目连接： http://www.codeforces.com/contest/476/problem/C Description Dreamoon loves summing …

B. Processing Queries 题目连接： http://www.codeforces.com/contest/644/problem/B Description In this problem you ha…

题目链接：BZOJ – 3052   题目分析 这道题就是非常经典的树上莫队了，并且是带修改的莫队。 带修改的莫队：将询问按照 左端点所在的块编号为第一关键字，右端点所在的块为第二关键字，位于第几次…

Minimum Cut Time Limit: 1 Sec   Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5452 …

Faulty Odometer Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=4278 De…