Time Limit: 2000MS Memory Limit: 32768K Total Submissions: 24788 Accepted: 12922 Description A power network consists of nodes (power stations, consumers and dispatchers) connected by power transport lines. A node u may be supplied with an amou…
Language: Default Power Network Time Limit: 2000MS Memory Limit: 32768K Total Submissions: 23407 Accepted: 12267 Description A power network consists of nodes (power stations, consumers and dispatchers) connected by power transport lines. A node…
#include<cstring> #include<cstdio> #define FOR(i,f_start,f_end) for(int i=f_startl;i<=f_end;i++) #define MS(arr,arr_value) memset(arr,arr_value,sizeof(arr)) ; ; int size; int n; const int inf=0x3f3f3f3f; using namespace std; int head[maxn];…
题目链接:http://poj.org/problem?id=1459 Power Network Time Limit: 2000MS Memory Limit: 32768K Total Submissions: 27074 Accepted: 14066 Description A power network consists of nodes (power stations, consumers and dispatchers) connected by power transp…
题意: 题意是一个人他要从牧场1走到牧场n然后在走回来,每条路径只走一次,问全程的最短路径是多少. 思路: 这个题目挺简单的吧,首先要保证每条边只能走一次,然后还要要求费用最小,那么我们可以直接跑费用流啊!还有题目说的是去了又回来,这个地方我们可以直接一次跑出两条路径,就是起始的时候的流量是2就行了,然后一遍费用流,然后就wa了,这个题目最坑人的地方就是他的输入叙述,说的什么The starting field, the end field, and the path'…
POJ 1459 Power Network / HIT 1228 Power Network / UVAlive 2760 Power Network / ZOJ 1734 Power Network / FZU 1161 (网络流,最大流) Description A power network consists of nodes (power stations, consumers and dispatchers) connected by power transport lines. A…
Power Network Time Limit: 2000MS Memory Limit: 32768K Description A power network consists of nodes (power stations, consumers and dispatchers) connected by power transport lines. A node u may be supplied with an amount s(u) >= 0 of power, may produc…