Drainage Ditches Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 62078 Accepted: 23845 Description Every time it rains on Farmer John's fields, a pond forms over Bessie's favorite clover patch. This means that the clover is covered by…
Description Every time it rains on Farmer John's fields, a pond forms over Bessie's favorite clover patch. This means that the clover is covered by water for awhile and takes quite a long time to regrow. Thus, Farmer John has built a set of drainage…
Description When Frodo, Sam, Merry, and Pippin are at the Green Dragon Inn drinking ale, they like to play a little game with parchment and pen to decide who buys the next round. The game works as follows: Given an m × n rectangular tile with each sq…
hdu1532 输入n,m. n条边,m个点,之后给出a到b的容量,求1到m的最大流. 注意:Dinic只能调用一次,因为原理是改变cap的值,如果调用多次一样的,那么第一次会对,其余的都会是0,因为,cap的值经过一次调用已经改变了,如果想调用多次,就只能再开一个数组,存下原来的cap值. #include <bits/stdc++.h> using namespace std; const int INF=0x3f3f3f3f; typedef long long LL; #define…