func_code_string: #include <bits/stdc++.h>   using namespace std;   bool debug = 0;   int n, m, k;   int dx[4] = {0, 1, 0, -1}, dy[4] = {1, 0, -1, 0};   string direc =  RDLU ;   long long ln, lk, lm;   char s[105][105];   int cal(int x) { return x * (x - 1) / 2; }   void fmain() {     scanf( %d , &n);     for (int(i) = 1; (i) <= (int)(n); (i)++) scanf( %s , s[i] + 1);     for (int(i) = 1; (i) <= (int)(n); (i)++) {       m = 0;       for (int(j) = 1; (j) <= (int)(n); (j)++)         if (s[i][j] ==  C ) m++;       k += cal(m);     }     for (int(j) = 1; (j) <= (int)(n); (j)++) {       m = 0;       for (int(i) = 1; (i) <= (int)(n); (i)++)         if (s[i][j] ==  C ) m++;       k += cal(m);     }     printf( %d n , k);   }   int main() {     fmain();     return 0;   }   