Submission

Score: 100

User: Fifaxmb

Problemset: ผลบวก (กลาง)

Language: cpp

Time: 0.063 second

Submitted On: 2026-01-03 11:36:52

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

int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n;cin >> n;
    vector<int> v(n);
    vector<int> dp(n);
    for(int i =0;i < n;i++){
        cin >> v[i];
        if(i == 0) dp[0] = v[0];
        else{
            dp[i] = dp[i-1] + v[i];
        }
    }
    int k;cin >> k;
    while(k--){

        int h,l;
        cin >> l >> h;
        int ans = dp[h] - dp[l-1];  
        cout << ans <<'\n';
    }

}