#include<stdio.h> #include<iostream> #include<queue> using namespace std; typedef struct n1 { int x,dist,mony; friend bool operator<(n1 a,n1 b) { if(b.dist>a.dist) return b.dist<a.dist; else if(b.dist==a.dist&&b.mony>=a.mony) return b.mony<a.mony; } }node; node map[1005][1005],N[1005]; int s,t,min_dist,min_mony; int vist[1005][1005]; void set(int n,int m) { int i,j,n1,n2,d,p; for(i=1;i<=n;i++) { for(j=1;j<=n;j++) { map[i][j].dist=0;vist[i][j]=0; } } while(m--) { scanf("%d%d%d%d",&n1,&n2,&d,&p); if(map[n1][n2].dist==d) { if(map[n1][n2].mony>p) map[n1][n2].mony=map[n2][n1].mony=p; } else if(map[n1][n2].dist==0||map[n1][n2].dist>d) { map[n1][n2].dist=map[n2][n1].dist=d; map[n1][n2].mony=map[n2][n1].mony=p; } } scanf("%d%d",&s,&t); } void BFS(int n) { priority_queue<node> Q; node q,p; int i; q.mony=0; q.dist=0;q.x=t; Q.push(q); while(!Q.empty()) { q=Q.top(); Q.pop(); if(q.x==s) { min_dist=q.dist;min_mony=q.mony; break; } for(i=1;i<=n;i++) if(map[q.x][i].dist&&!vist[q.x][i]) { vist[q.x][i]=vist[i][q.x]=1;//这样就不会走重复的路 p.dist=map[q.x][i].dist+q.dist; p.mony=map[q.x][i].mony+q.mony; p.x=i;//printf("%d %d %d\n",p.x,p.dist,p.mony); Q.push(p); } } } int main() { int n,m; while(scanf("%d%d",&n,&m)>0&&(n||m)) { set(n,m); BFS(n); printf("%d %d\n",min_dist,min_mony); } }