医院设置

即使今天不圆满,也应该画上句号!

#include<iostream>
#include<cstdio>
#include<cstring>
#include<queue>
#include<algorithm>
using namespace std;
const int N=105;
int node[N],t[N],edge[N][N];
int main(){
	int n;
	cin>>n;
	for(int i=1;i<=n;i++){
        int left,right;
        scanf("%d%d%d",node+i,&left,&right);
        edge[i][left]=edge[left][i]=edge[i][right]=edge[right][i]=1;
    }
    int ans=0x0fffffff;
    //遍历每一个结点,找到最优值
    for(int i=1;i<=n;i++){
        int sum=0,path=1;
        memset(t,0,sizeof(t));
        queue<int> q;
        q.push(i);
        t[i]=1;
        while(!q.empty()){
            int cnt=q.size();
            for(int j=1;j<=cnt;j++){
                int v=q.front();
                q.pop();
                for(int k=1;k<=n;k++){
                    if(!t[k]&&edge[v][k]){
                        q.push(k);
                        t[k]=1;
                        sum+=node[k]*path;
                    }
                }
            }
            path++;
        }
        ans=min(ans,sum);
    }
    cout<<ans;
	return 0;
}