- #include <stdio.h>
- #include <string.h>
- #include <vector>
- #include <algorithm>
- #define MAX 105
- using namespace std;
- int cost[MAX][MAX],visit[MAX],ans1,ans2,n;
- vector <int> adjList [MAX];
- int dfs()
- { int u, i = 1,j, red = 0, black = 0;
- while (true) {
- u = 205;
- for(j=0;j<adjList[i].size();j++){
- if (!visit [adjList [i][j]]) {
- u = adjList [i][j];
- break;
- }
- }
- if (u == 205) break;
- visit[u]=1;
- red += ((int) cost [i][u]);
- black += ((int) cost [u][i]);
- i = u;
- }
- red += ((int) cost [i][1]);
- black += ((int) cost [1][i]);
- return min (red, black);
- }
- void solve()
- { int u,v,w,i;
- scanf("%d",&n);
- memset(visit,0,sizeof(visit));
- memset(cost,0,sizeof(cost));
- for(i=0;i<=n+1;i++) adjList[i].clear();
- for(i=1;i<=n;i++)
- {
- scanf("%d %d %d",&u,&v,&w);
- cost[u][v]=0;
- cost[v][u]=w;
- adjList[u].push_back(v);
- adjList[v].push_back(u);
- }
- visit[1]=1;
- //ans2+=cost[1][adjList[1][1]];
- //ans1+=cost[adjList[1][1]][1];
- printf("%d\n",dfs());
- }
- int main()
- {
- int t,cs;
- scanf("%d",&t);
- for(cs=1;cs<=t;cs++)
- {
- printf("Case %d: ",cs);
- solve();
- }
- }
Saturday 29 July 2017
Lightoj 1049 - One Way Roads
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