ITSA15

 
#include <stdio.h>
int main()
{
    int T, m, n, q, x, y, i;
    char map[101][101];
    scanf("%d", &T);
    while(T--){
        scanf("%d%d%d", &m, &n, &q);
        for(i = 0; i < m; i++)
            scanf("%s", map[i]);
        printf("%d %d %d\n", m, n, q);
        while(q--){
            scanf("%d%d", &x, &y);
            for(i = 1; ; i++){
                int xx = x-i, yy = y-i, dx = x+i, dy = y+i, judge = 0;
                if(xx < 0 || yy < 0 || dx >= m || dy >= n)    {printf("%d\n", 2*i-1); break;}
                for(int a = xx; a < xx+i*2+1 && !judge; a++)
                    for(int b = yy; b < yy+i*2+1 && !judge; b++)
                        if(map[a][b] != map[x][y])   judge = 1;
                if(judge)   {printf("%d\n", 2*i-1); break;}
            }
        }
    }
    return 0;
}