uva 10048 Audiophobia floyd的变形

#include <cstdio>
#include <iostream>
#include <algorithm>
#include <queue>
#include <stack>
#include <cstdlib>
#include <cmath>
#include <set>
#include <map>
#include <vector>
#include <cstring>

#define INF 100000000
using namespace std;
int n,m,t;
int ma[110][110];

int main(){
	int q = 1;
	
	while(cin >>n >> m >> t,n||m||t){
		for(int i = 0;i <= n;i++){
			for(int j = 0;j <= n;j++){
				ma[i][j] = INF; 
			}
		}
		for(int i = 0;i < m;i++){
			int x,y,w;
			cin >> x >> y >> w;
			ma[x][y] = w;
			ma[y][x] = w;
		}
		
		for(int k = 1;k <= n;k ++){
			for(int i = 1;i <= n;i++){
				for(int j = 1;j <= n;j++){
					ma[i][j] = min(ma[i][j],max(ma[i][k],ma[k][j]));//改变一下floyd的状态转移方程
				}
			}
		}
		if(q!=1) cout << endl;
		printf("Case #%d\n",q++);
		for(int i = 0;i < t;i++){
			int x,y;
			cin >> x >> y;
			if(ma[x][y] != INF)
				cout << ma[x][y] << endl;
			else
				cout << "no path" << endl;
		}
	}	
	return 0;
}