func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long mx = 105;   const long long mx1 = 1000001;   const long long mod = 1000000007;   vector<vector<long long> > edges;   void adds(long long &a, long long b) {     a += b;     if (a >= mod) a -= mod;   }   long long mul(long long a, long long b) { return (long long)a * b % mod; }   void max_self(long long &a, long long b) { a = max(a, b); }   int main() {     int n, i, res = 0, inc1 = -1, lp = 0, rp = 0;     cin >> n;     string s;     cin >> s;     for (i = 0; i < s.size(); i++) {       if (s[i] ==  ( ) {         lp++;       } else {         rp++;       }       if (rp > lp && inc1 == -1) {         inc1 = i;       } else if (lp == rp && inc1 != -1) {         res += i - inc1 + 1;         inc1 = -1;       }     }     if (lp != rp)       cout <<  -1 n ;     else {       cout << res <<   n ;     }   }   