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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	string s;
  6. 	cin>>s;
  7. 	int countL=0;
  8. 	int countR=0;
  9. 	int n=0;
  10. 	for(int i=0;i<s.size();i++){
  11. 		if (s[i]==')'){
  12. 			countR++;
  13. 		}
  14. 		if (s[i]=='('){
  15. 			countL++;
  16. 		}
  17. 		if (countR>countL){
  18. 			n++;
  19. 			countR--;
  20. 		}
  21.  
  22. 	}
  23. 	cout<<n+(countL-countR);
  24. }
  25.  
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/dI4Yiq
language:
C++14 (clang 8.0)
created:
13 days ago
visibility:
public

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