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又是神奇的G++ 就AC。 C++ 就 WA…… 样例不算错,只要能输出最小。毕竟 Special Judge !!!!!!!!求大神路过 Debug。 C++ WA了。 G++ AC了。 #include<cstdio> #include<cstring> #include<queue> #include<algorithm> #include<queue> #include<map> #include<stack> #include<iostream> #include<list> #include<set> #include<cmath> #define INF 0x7fffffff #define eps 1e-6 using namespace std; int n,m; struct lx { int u,v,len; bool vis; } l[500*1001]; int fa[1001]; bool cmp(lx a,lx b) { return a.len<b.len; } int father(int x) { if(x!=fa[x]) return fa[x]=father(fa[x]); } int main() { while(scanf("%d%d",&n,&m)!=EOF) { for(int i=0;i<m;i++) scanf("%d%d%d",&l[i].u,&l[i].v,&l[i].len),l[i].vis=0; for(int i=0;i<=n;i++) fa[i]=i; sort(l,l+m,cmp); int len=0,maxe=0; for(int i=0;i<m;i++) { int fu=father(l[i].u); int fv=father(l[i].v); if(fu==fv)continue; fa[fv]=fu; l[i].vis=1; maxe++; len=max(len,l[i].len); } printf("%d\n%d\n",len,maxe); for(int i=0;i<m;i++) { if(l[i].vis==1) printf("%d %d\n",l[i].u,l[i].v); } } } Followed by: Post your reply here: |
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