Submission

Score: 100

User: APNICHANAN

Problemset: ผลบวก (กลาง)

Language: cpp

Time: 0.123 second

Submitted On: 2025-10-07 08:59:58

#include <iostream>
using namespace std;
int main()
{
    int n;
    cin >> n ;
    int num[n] , sum[n];
    for (int i = 0 ; i < n ; i++)
    {
        cin >> num[i] ;
        if (i > 0)
        sum[i] = sum[i-1] + num[i];
        else
        sum[i] = num[i] ;
    }
    int q ;
    cin >> q ;
    int a[q] , b[q] , ans[q] ;
    for (int i = 0 ; i < q ; i++)
    {
        cin >> a[i] >> b[i] ;
        ans[i] = sum[b[i]] - sum[a[i] - 1] ;
    }

    for (int i = 0 ; i < q ; i++)
    cout << ans[i] << endl ;
}