网络流模板~ #include<bits/stdc++.h> using namespace std; ; const int inf=1e9; queue<int> q; int M,N; int g[maxn][maxn]; int pre[maxn]; int flow[maxn]; int maxflow; unordered_map<string,int> pos; int bfs (int s,int t) { while (!q.empty()) q.po…

1030 Travel Plan (30 分)   A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a program to help a traveler to decide the shortest path between his/her starting…

https://www.patest.cn/contests/pat-a-practise/1030 找最短路,如果有多条找最小消耗的,相当于找两次最短路,可以直接dfs,数据小不会超时. #include<cstdio> #include<string> #include<cstring> #include<vector> #include<iostream> #include<queue> #include<bitset&g…

https://pintia.cn/problem-sets/994805342720868352/problems/994805464397627392 A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a program to help a traveler t…

A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a program to help a traveler to decide the shortest path between his/her starting city and the destination.…

题目 A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a program to help a traveler to decide the shortest path between his/her starting city and the destinatio…

1.前端代码    </form>    //注意放在form下面<script>    function readRegedit() {        var obj = new ActiveXObject("WScript.Shell");        var s="HKEY_CURRENT_USER\\SOFTWARE\\Universal Travel Group\\Client\\Parameter";        var sN…

1030 Travel Plan (30)(30 分) A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a program to help a traveler to decide the shortest path between his/her startin…

先处理出最短路上的边.变成一个DAG,然后在DAG上进行DFS. #include<iostream> #include<cstring> #include<cmath> #include<algorithm> #include<cstdio> #include<queue> #include<vector> using namespace std; const int INF=0x7FFFFFFF; ; int n,m,…

模板题最短路+输出路径如果最短路不唯一,输出cost最小的 #include <iostream> #include <cstdio> #include <algorithm> #include <string.h> #include <cmath> #include <queue> #define INF 0x3f3f3f3f using namespace std; ; int n,m,s,t; struct Edge{ int…