The Shortest Path

#include <stdio.h>
#include <string.h>
#include <algorithm>
using namespace std;
#define inf  99999999

int n,m;
int map[85][85];
int a[85][85][85], tem[85][85];

void Floyd() {
    int i, j, k;
    for(i = 1; i <= n; i++)
        for(j = 1; j <= n; j++)
            for(k = 1; k <= n; k++)
                if(map[j][i] + map[i][k] < map[j][k])
                    map[j][k] = map[j][i] + map[i][k];
}

void getmap() {
    int i, j, k, x, y, z;
    for(i = 1; i <= n; i++)
        for(j = 1; j <= m; j++)
            for(k = 1; k <= m; k++)
                scanf("%d",&a[i][j][k]);

    for(i = 0; i <= n; i++) {
        for(j = 0; j <= n; j++) {
            if(i == j)
                map[i][j] = 0;
            else
                map[i][j] = inf;
        }
    }

    for(i = 1; i <= n; i++) {
        for(j = 1; j <= n; j++) {
            if(i == j)
                continue;

            memset(tem,0,sizeof(tem));

            for(x = 1; x <= m; x++) { //矩阵相乘
                for(y = 1; y <= m; y++) {
                    tem[x][y] = 0;
                    for(z = 1; z <= m; z++) {
                        tem[x][y] += a[i][x][z]*a[j][z][y];
                    }
                }
            }

            for(x = 1; x <= n; x++) {
                if(x == i || x == j)
                    continue;

                int flag = 1;
                for(y = 1; y <= m; y++) {
                    for(z = 1; z <= m; z++) {
                        if(tem[y][z] != a[x][y][z]) {
                            flag = 0;
                            break;
                        }
                    }

                    if(!flag)
                        break;
                }

                if(flag)
                    map[i][x] = 1;
            }
        }
    }

    Floyd();
}

int main() {
    freopen("data.in", "r", stdin);
    int i, k, j, x, y, z;
    while(scanf("%d%d", &n, &m)) {
        if(n==0 && m == 0)
            break;

        getmap();
        scanf("%d", &z);

        while(z--) {
            scanf("%d%d", &x, &y);
            if(map[x][y] == inf)
                printf("Sorry\n");
            else
                printf("%d\n",map[x][y]);
        }
    }

    return 0;
}