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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int n, i=2, sum =0;
  6. 	cout << "Enter n:";
  7. 	cin >>n;
  8.  
  9. 	while  (i<=n) {
  10. 	 sum= sum + i*i;
  11. 	 i +=2;
  12. 	}
  13.  
  14. 	 		cout << "Sum of squares of even numbers =" <<sum;
  15.  
  16. 	return 0;	
  17. }
Success #stdin #stdout 0s 5320KB
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Enter n:Sum of squares of even numbers =1540
https://ideone.com/fXQ87d
language:
C++ (gcc 8.3)
created:
17 hours ago
visibility:
public

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