fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.     string s;
  7.     int cur = 0 , ans = 0;
  8.     cin>>s;
  9.     for(int i = 0 ; i < s.length() ; i++)
  10.     {
  11.         if(s[i] == '(')
  12.             cur ++ , ans ++;
  13.         if(s[i] == ')' && cur > 0)
  14.             cur -- , ans ++;
  15.     }
  16.     cout<<ans - cur<<endl;
  17.     return 0;
  18. }
  19.  
  20.  
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
0
https://ideone.com/byVmrL
language:
C++14 (gcc 8.3)
created:
12 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!