func_code_string: #include <bits/stdc++.h>   using namespace std;   long long fact(int x) {     long long ans = 0;     while (x > 0) {       ans += x;       x--;     }     return ans;   }   int main() {     int n;     cin >> n;     vector<vector<char> > a(n, vector<char>(n));     for (int i = 0; i < n; i++)       for (int j = 0; j < n; j++) cin >> a[i][j];     vector<int> ansi(n);     vector<int> ansj(n);     for (int i = 0; i < n; i++)       for (int j = 0; j < n; j++)         if (a[i][j] ==  C ) {           ansi[i]++;           ansj[j]++;         }     long long count = 0;     long long ans = 0;     for (int i = 0; i < n; i++) count += fact(ansi[i] - 1);     ans += count;     count = 0;     for (int i = 0; i < n; i++) count += fact(ansj[i] - 1);     ans += count;     cout << ans;     return 0;   }   