func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 100005;   int n, m;   int t;   int a[N];   string s;   int main() {     cin >> t;     while (t--) {       cin >> s;       int c = 0;       for (int i = 0; i < s.length(); i++) {         if (s[i] ==  B ) c++;       }       if (s.length() % 2 == 0 && c == s.length() / 2)         puts( yes );       else         puts( no );     }     return 0;   }   