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  1. #include <stdio.h>
  2.  
  3. long long int func(int n){
  4.  
  5. 	int c;
  6. 	long long int sum=0;
  7.  
  8. 	for(c=1;c<=n;c++){
  9. 		sum += 2*(int)((c/2)+1) - c;
  10. 	}
  11.  
  12. 	return sum;
  13. }
  14.  
  15. int main(void) {
  16. 	int n,i;
  17. 	long long int sum=0;
  18.  
  19. 	scanf("%d",&n);
  20.  
  21. 	for(i=1;i<=n;i++){
  22. 		sum += func(i);
  23. 	}
  24.  
  25. 	printf("%lld",sum);
  26.  
  27. 	return 0;
  28. }
  29.  
Success #stdin #stdout 0s 2172KB
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https://ideone.com/2SKZQ6
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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