func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     string s;     cin >> s;     int cnt = 0;     for (int i = 0; i < n; i++) {       if (s[i] ==  + ) {         cnt++;       } else if (s[i] ==  -  && cnt) {         cnt--;       }     }     cout << cnt << endl;     return 0;   }   