Submission

PPPPPPPPPPPPPPPPPPPP

Score: 100

User: Nathlol2

Problemset: ผลบวก (กลาง)

Language: cpp

Time: 0.050 second

Submitted On: 2025-01-17 17:04:18

#include <bits/stdc++.h>
using namespace std;

int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    
    int n;
    cin >> n;
    int a[n];
    memset(a, 0, sizeof a);
    int i = 0;
    while(n--){
        int x;
        cin >> x;
        if(i != 0)
            a[i] += a[i - 1];
        a[i] += x;
        i++;
    }
    int t;
    cin >> t;
    while(t--){
        int x, b;
        cin >> x >> b;
        cout << a[b] - a[x - 1] << '\n';
    }
}