func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, k;     cin >> n >> k;     char s[200000], c[200000];     cin >> s;     int x = k / 2, r = k / 2;     if (k == n) {       cout << s;       return 0;     }     for (int i = 0, j = 0; i < n; ++i) {       if (s[i] ==  ( ) {         if (x > 0) c[j++] =  ( ;         --x;       } else {         if (r > 0) c[j++] =  ) ;         --r;       }     }     cout << c << endl;     return 0;   }   