来看笑话&紧实厚乳

  int dis[1005][1005],hav[1005][1005];
  rep(i,1,m){
		read(e[i].u);
		read(e[i].v);
		read(e[i].w);
		dis[e[i].u][e[i].v]=dis[e[i].v][e[i].u]=e[i].w;
		hav[e[i].u][e[i].v]=hav[e[i].v][e[i].u]=1;
	}
	cnt=m;
	kruskal(0);
	if(k==0){
		print(ans[0]);
		return 0;
	} 

  rep(i,1,m){
		read(e[i].u);
		read(e[i].v);
		read(e[i].w);
	}
	cnt=m;
	kruskal(0);
	if(k==0){
		print(ans[0]);
		return 0;
	} 
  int dis[1005][1005],hav[1005][1005];
	rep(i,1,m){
		dis[e[i].u][e[i].v]=dis[e[i].v][e[i].u]=e[i].w;
		hav[e[i].u][e[i].v]=hav[e[i].v][e[i].u]=1;
	}