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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. char o[30];
  6. void rec(int b, int l, int p){
  7.     if (l==0 && b == 0){
  8.         cout << o << "\n";
  9.         return;
  10.     }
  11.     if (b < 0)
  12.         return;
  13.     if (b > l)
  14.         return;
  15.     o[p] = '(';
  16.     rec(b+1,l-1,p+1);
  17.     o[p] = ')';
  18.     rec(b-1,l-1,p+1);
  19. }
  20.  
  21. int main()
  22. {
  23.     int n;
  24.     cin >> n;
  25.     rec(0,2*n,0);
  26. }
Success #stdin #stdout 0s 4308KB
comments (?)
stdin
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4
stdout
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(((())))
((()()))
((())())
((()))()
(()(()))
(()()())
(()())()
(())(())
(())()()
()((()))
()(()())
()(())()
()()(())
()()()()
https://ideone.com/8Vnnp9
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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