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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4. int main() {
  5. 	int a, a2, b, c;
  6. 	cin >> a;
  7. 	a2 = a * 2;
  8. 	b = a2/(a2 + 1 );
  9. 	c = (b + 1)/2;
  10. 	// vector<string> answers {"No", "Yes"};
  11. 	// cout << answers[c];
  12.  
  13. 	cout << (c==0 ? "NO" : "YES");
  14. }
Success #stdin #stdout 0s 5312KB
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-1
stdout
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YES
https://ideone.com/SNL7tU
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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