Drainage Ditches Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 59210   Accepted: 22737 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…

一直不明白为什么我的耗时几百毫秒,明明差不多的程序啊,我改来改去还是几百毫秒....一个小时后:明白了,原来把最大值0x3f(77)取0x3f3f3f3f就把时间缩短为16ms了.可是为什么原来那样没有WA呢?哦,明白了,因为最大值写小了,dicnic会多跑几遍.嗯顺便:0x3f3f3f3f也就是1061109567,也就是10^9级别的,是一个很大的数,而且加上一个10^9级别以下的数字也不会溢出.所以很多时候最大值取这个会比较好.最大的int是0x7fffffff,可以用常量INT_MAX…

Drainage Ditches Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 91585   Accepted: 35493 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…

                                                         Drainage Ditches Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 69983   Accepted: 27151 Description Every time it rains on Farmer John's fields, a pond forms over Bessie's favorit…

A - Drainage Ditches Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u   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 wa…

Description 给图,求最大流 最大流模板题,这里用dinic Code #include <cstdio> #include <cstring> #include <algorithm> #define Inf 0x7fffffff #define N 210 using namespace std; int g[N][N],d[N],q[N*10],h,t; int n,m,Ans,tmp; bool Bfs(){ memset(d,-1,sizeof(d)…

Drainage Ditches Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 16314    Accepted Submission(s): 7748 Problem Description Every time it rains on Farmer John's fields, a pond forms over Bessie'…

http://poj.org/problem?id=1273 Drainage Ditches Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 62708   Accepted: 24150 Description Every time it rains on Farmer John's fields, a pond forms over Bessie's favorite clover patch. This means…

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…

pid=1532">Drainage Ditches Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 8574    Accepted Submission(s): 3991 Problem Description Every time it rains on Farmer John's fields, a pond forms…