Submission

Score: 100

User: santanaja07

Problemset: ผลบวก (กลาง)

Language: cpp

Time: 0.090 second

Submitted On: 2025-09-29 22:09:02

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

int main() {
	int n;
	cin>>n;
	int c[n+5]={0};
	for(int i=1;i<=n;i++){
		cin>>c[i];
	}
	int sum[n+5]={0};
	int q;
	cin>>q;
	int x[q],y[q];
	for(int i=0;i<q;i++){
		cin>>x[i]>>y[i];
	}
	for(int i=1;i<=n;i++){
		sum[i]=sum[i-1]+c[i];
	}
	for(int i=0;i<q;i++){
		int ans;
		ans=sum[y[i]+1]-sum[x[i]];
		cout<<ans<<endl;
	}
	
}