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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define el "\n"
  4. #define ll long long
  5. #define ull unsigned long long
  6. #define se second
  7. #define fi first
  8. #define be begin()
  9. #define en end()
  10. #define Faster cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
  11. int main()
  12. {
  13.     Faster;
  14.     int n; cin >> n;
  15.     ll a[n + 1];
  16.     a[0] = 0;
  17.     for(int i = 1; i <= n; i++)
  18.     {
  19.         cin >> a[i];
  20.         a[i] = a[i] + a[i-1];
  21.     }
  22.     int q; cin >> q;
  23.     while(q--)
  24.     {
  25.         int i, j;
  26.         cin >> i >> j;
  27.         cout << a[j + 1] - a[i] << el;
  28.     }
  29.  
  30. }
  31.  
Success #stdin #stdout 0s 5284KB
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stdin
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5
1 2 3 4 5
2
0 4
1 3
stdout
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15
9
https://ideone.com/WcnFPK
language:
C++14 (gcc 8.3)
created:
9 days ago
visibility:
public

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