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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4. class Ideone {
  5. 	public static void f (int x, String s) {
  6. 		if(s.length() == 10) {
  7. 			System.out.println(s) ;
  8. 			return;
  9. 		}
  10. 		if(x>0) f(x-1,s+")");
  11. 		if(10-s.length() > x) f(x+1,s+"(");
  12. 	}
  13. 	public static void main (String[] args) {
  14. 		f(0, "");
  15. 	}
  16. }
Success #stdin #stdout 0.11s 320576KB
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stdin
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(())(())()
stdout
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()()()()()
()()()(())
()()(())()
()()(()())
()()((()))
()(())()()
()(())(())
()(()())()
()(()()())
()(()(()))
()((()))()
()((())())
()((()()))
()(((())))
(())()()()
(())()(())
(())(())()
(())(()())
(())((()))
(()())()()
(()())(())
(()()())()
(()()()())
(()()(()))
(()(()))()
(()(())())
(()(()()))
(()((())))
((()))()()
((()))(())
((())())()
((())()())
((())(()))
((()()))()
((()())())
((()()()))
((()(())))
(((())))()
(((()))())
(((())()))
(((()())))
((((()))))
https://ideone.com/9MjHSA
language:
Java (12.0.1)
created:
8 years ago
visibility:
secret

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