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  1. #include<bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main(){
  6.  
  7. 	ios::sync_with_stdio(false);
  8. 	cin.tie(NULL);
  9.  
  10. 	long long l;
  11. 	long long r;
  12.  
  13. 	cin>>l>>r;
  14.  
  15. 	long long res=0;
  16. 	for(long long i=l; i<=r; ++i){
  17. 		long long suml=0;
  18. 		long long sumr=0;
  19. 		for(long long j=1; j<=l; ++j){
  20. 			suml=suml+(i%j);
  21. 		}
  22. 		for(long long j=1; j<l; ++j){
  23. 			sumr=sumr+(i%j);
  24. 		}
  25.  
  26. 		if(suml==sumr){
  27. 			res=res+i;
  28. 		}
  29.  
  30. 	}
  31.  
  32. 	cout<<res;
  33.  
  34. }
Success #stdin #stdout 0.01s 5328KB
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https://ideone.com/bgedHs
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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