func_code_string: #include <bits/stdc++.h>   int cnt[1001][1001], que[1000001][2], head = -1, tail;   char map[1001][1001];   int n, m;   int main() {     int i, j, a, go[4][2] = {1, 0, 0, 1, -1, 0, 0, -1}, print;     scanf( %d %d , &n, &m);     for (i = 0; i < n; i++) {       scanf( %s , map[i]);       for (j = 0; j < m; j++) {         if (map[i][j] ==  E ) {           que[++head][0] = i;           que[head][1] = j;           cnt[i][j] = 1;         }       }     }     while (head >= tail) {       i = que[tail][0];       j = que[tail++][1];       for (a = 0; a < 4; a++) {         if (i + go[a][0] >= 0 && j + go[a][1] >= 0 && i + go[a][0] < n &&             j + go[a][1] < m && map[i + go[a][0]][j + go[a][1]] !=  T  &&             cnt[i + go[a][0]][j + go[a][1]] == 0) {           que[++head][0] = i + go[a][0];           que[head][1] = j + go[a][1];           cnt[i + go[a][0]][j + go[a][1]] = cnt[i][j] + 1;         }       }     }     for (i = 0; i < n; i++) {       for (j = 0; j < m; j++) {         if (map[i][j] ==  S ) print = cnt[i][j];       }     }     int sum = 0;     for (i = 0; i < n; i++) {       for (j = 0; j < m; j++) {         if (print >= cnt[i][j] && map[i][j] >=  0  && map[i][j] <=  9  &&             cnt[i][j] != 0)           sum += map[i][j] -  0 ;       }     }     printf( %d n , sum);     return 0;   }   