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Apr 26th, 2017
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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4. int main(int argc, const char * argv[]) {
  5. int l=0, s=0;
  6. string c;
  7. getline(cin, c);
  8. for (int i=0; i<c.length(); i++) {
  9. if (c[i] == '(') l++;
  10. else {
  11. l--;
  12. if (c[i-1] == '(') s += l;
  13. else s++;
  14. }
  15. }
  16. cout << s ;
  17. }
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