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Re:水题啊!Floyd0MS秒杀In Reply To:水题啊!Floyd0MS秒杀 Posted by:ldf00000 at 2011-07-11 17:14:11 > #include <iostream>
>
> using namespace std;
>
> const int MAXN=100,INF=1<<30-1;
> int map[MAXN][MAXN];
>
> inline void eqmin(int & a,int b)
> {
> if (b<a) a=b;
> }
>
> int main()
> {
> int n,m,a,b;
> for(cin>>n;n!=0;cin>>n)
> {
> for(int i=0;i<n;i++)
> for(int j=0;j<n;j++) map[i][j]=INF;
> for(int i=0;i<n;i++)
> {
> cin>>m;
> for(int j=0;j<m;j++)
> {
> cin>>a>>b;
> map[i][a-1]=b;
> }
> }
>
> for(int k=0;k<n;k++)
> for(int i=0;i<n;i++)
> for(int j=0;j<n;j++)
> if (i!=j) eqmin(map[i][j],map[i][k]+map[k][j]);
>
> int tmax=INF,res;
> for(int i=0;i<n;i++)
> {
> int maxn=0;
> for (int j=0;j<n;j++) if (i!=j && map[i][j]>maxn) maxn=map[i][j];
> if (maxn<tmax) tmax=maxn,res=i;
> }
> cout<<res+1<<' '<<tmax<<endl;
> }
> return 0;
> }
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