Submission

Score: 100

User: 666whynot

Problemset: ผลบวก (กลาง)

Language: cpp

Time: 0.034 second

Submitted On: 2025-10-12 09:34:01

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

int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);
    int n;cin>>n;
    vector<int> sum(n);
    int to =0;
    for(int i=0;i<n;i++){
        int x;cin>>x;
        to+= x;
        sum[i] = to;
    }
    int q;cin>>q;
    while(q--){
        int a,b;cin>>a>>b;
        cout << sum[b]-sum[a-1]<<'\n';
    }
}