func_code_string: #include <bits/stdc++.h>   int main() {     int N, gre[101], res[100][101], n, i, j;     scanf( %d , &N);     for (i = 0; i < N; i++) {       for (j = 0; j < N; j++) {         scanf( %d , &res[i][j]);       }       gre[i] = 1;     }     n = 0;     for (i = 0; i < N; i++) {       for (j = i; j < N; j++) {         if (res[i][j] == 0) {           continue;         }         if (res[i][j] == 1) {           gre[i] = 0;         }         if (res[i][j] == 2) {           gre[j] = 0;         }         if (res[i][j] == 3) {           gre[i] = gre[j] = 0;         }       }       if (gre[i]) {         n++;       }     }     j = 0;     printf( %d n , n);     for (i = 0; j < n; i++) {       if (gre[i]) {         printf( %d%c , i + 1, j++ == n - 1 ?   n  :    );       }     }     return 0;   }   