Submission

Pxxxxxxxxxxxxxxxxxxx

Score: 5

User: njoop

Problemset: ผลบวก (กลาง)

Language: cpp

Time: 0.040 second

Submitted On: 2024-11-30 22:21:25

#include <bits/stdc++.h>

using namespace std;

long long arr[200010], ps[200010];

int main() {
    int n, q, x, y;
    cin >> n;
    cin >> arr[0];
    ps[0] = arr[0];
    for(int i=1; i<n; i++) {
        cin >> arr[i];
        ps[i] = arr[i] + ps[i-1];
    }
    cin >> q;
    while(q--) {
        cin >> x >> y;
        cout << ps[y] - ps[x-1] << "\n";
    }
    return 0;
}