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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. main(){
  5.     int n,l,r;
  6.     cin>>n>>l>>r;
  7.     vector<int>v(n),sum(n+1);
  8.     sum[0]=0;
  9.     for(int i=0;i<n;i++){
  10.         cin>>v[i];
  11.         sum[i+1]=v[i]+sum[i];
  12.     }
  13.     cout<<sum[r+1]-sum[l]<<"\n";
  14. }
Success #stdin #stdout 0s 5316KB
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stdin
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5 0 4
2 5 1 6 3
stdout
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17
https://ideone.com/U47NvL
language:
C++14 (gcc 8.3)
created:
5 days ago
visibility:
public

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