UVA - 10048 Audiophobia （Floyd应用）

#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<map>
using namespace std;
#define inf 0x3f3f3f
int dp[110][110];
int main()
{
    int n,m,q,a,b,w,ca = 0;
    while(cin>>n>>m>>q)
    {
        if(n+m+q==0) break;
        if(ca != 0)printf("\n");
        memset(dp,0x3f,sizeof(dp));
        for(int i = 0; i < m; i++)
        {
            cin>>a>>b>>w;
            dp[a][b] = dp[b][a] = w;
        }
        for(int i = 1; i <= n; i++)
        {
            dp[i][i] = 0;
        }
        for(int k = 1; k <= n; k++)
        {
            for(int i = 1; i <= n; i++)
            {
                for(int j = 1; j <= n; j++)
                {
                    dp[i][j] = min(dp[i][j],max(dp[i][k],dp[k][j]));
                }
            }
        }
        cout<<"Case #"<<++ca<<endl;
        for(int i = 0; i < q; i++)
        {
            cin>>a>>b;
            if(dp[a][b] >= inf)
            {
                cout<<"no path\n";
            }
            else cout<<dp[a][b]<<endl;
        }
    }
    return 0;
}