UVA10048Audiophobia

//UVA10048Audiophobia
#include
#include
#include
using namespace std;
const int maxn = 100 + 5;
const int INF = 1000000000;
int G[maxn][maxn];
int main() {
	int m, n, q, kase = 0;
	while(scanf("%d%d%d", &n, &m, &q) == 3 && n) {
	    for(int i = 1; i <= n; i++) 
	        for(int j = 1; j <= n; j++) 
	        	if(i == j) G[i][j] = 0;
	        	else G[i][j] = G[j][i] = INF;//初始化 
		for(int i = 0; i < m; i++) {
			int a, b, c;
			scanf("%d%d%d", &a, &b, &c);
			G[a][b] = G[b][a] = c;
		}
		for(int k = 1; k <= n; k++) 
		    for(int i = 1; i <= n; i++) 
		        for(int j = 1; j <= n; j++) 
		            G[i][j] = min(G[i][j], max(G[i][k], G[k][j]));
        if(kase++) printf("\n");
        printf("Case #%d\n", kase);
		for(int i = 0; i < q; i++) {
        	int u, v;
        	scanf("%d%d", &u, &v);
        	if(G[u][v] < INF) printf("%d\n", G[u][v]);
        	else printf("no path\n");
		}
	}
	return 0;
}
/*
7 9 3
1 2 50
1 3 60
2 4 120
2 5 90
3 6 50
4 6 80
4 7 70
5 7 40
6 7 140
1 7
2 6
6 2
7 6 3
1 2 50
1 3 60
2 4 120
3 6 50
4 6 80
5 7 40
7 5
1 7
2 4
0 0 0
*/