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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int i,j,cnt,n;
  7. 	cin>>n;
  8. 	for(i=1;i<=n;i++){
  9. 		for(j=1;j<=i;j++){
  10. 			if(j%2==0||i%2==0)  cnt++;
  11. 		}
  12. 	}
  13. 	cout<<cnt;
  14. 	return 0;
  15. }
Success #stdin #stdout 0.01s 5288KB
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5
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https://ideone.com/ZdOyfi
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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