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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int n;
  7. 	cin>>n;
  8. 	vector<int> nums(n);
  9. 	for(int i=0;i<n;i++){
  10. 		int e;
  11. 		cin>>e;
  12. 		nums[i]=e;
  13. 	}
  14. 	for(int i=1;i<n;i++){
  15. 		nums[i]=nums[i-1]+nums[i];
  16. 	}
  17. 	int i,j;
  18. 	cin>>i>>j;
  19. 	cout<<nums[j]-nums[i-1];
  20. }
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/MNNFM9
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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