Submission

Score: 100

User: exoworldgd

Problemset: ผลบวก (ง่าย)

Language: cpp

Time: 0.129 second

Submitted On: 2025-05-26 09:28:42

#include <bits/stdc++.h>
using namespace std;
int main(void) {
    int n,l,r;
    cin >> n;
    int a[n],q[n+1];
    for (auto& i : a) cin >> i;
    q[0] = a[0];
    for (int i =1; i<= n; i++) q[i] =q[i-1]+a[i];
    cin >> l >> r;
    cout << q[r] - q[l-1];
}