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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. const int N = 100 + 5;
  4.  
  5. int n, arr[N], c[N];
  6.  
  7. int main(){
  8.     ios_base::sync_with_stdio(0);
  9.     cin.tie(0),cout.tie(0);
  10.  
  11.     cin >> n;
  12.  
  13.     for(int i = 0; i < n; i++)
  14.         cin >> arr[i];
  15.  
  16.     c[0] = arr[0];
  17.  
  18.     for(int i = 1; i < n; i++)
  19.         c[i] = arr[i] + c[i - 1];
  20.  
  21.     int q;
  22.     cin >> q;
  23.  
  24.     for(int i = 0; i < q; i++){
  25.         int l, r;
  26.  
  27.         cin >> l >> r;
  28.         l--;
  29.         r--;
  30.  
  31.         int ans;
  32.         if(l > 0)
  33.             ans = c[r] - c[l - 1];
  34.         else
  35.             ans = c[r];
  36.  
  37.         cout << ans << endl;
  38.     }
  39. }
Success #stdin #stdout 0s 5540KB
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https://ideone.com/XABIeI
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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