Submission

Score: 100

User: bananakung

Problemset: ผลบวก (กลาง)

Language: cpp

Time: 0.091 second

Submitted On: 2025-09-18 20:45:05

#include<iostream>
using namespace std;
int num[1000001],sum[1000001];
int main()
{
	int n,m,x,y;
	cin>>n;
	for(int i=0;i<n;i++) cin>>num[i];
	
	
	for(int i=0;i<n;i++)
	{
		sum[i]=sum[i-1]+num[i];
//		cout<<sum[i]<<endl;
	}
		
	cin>>m;
	for(int i=0;i<m;i++) 
	{	
		cin>>x>>y;
		cout<<sum[y]-sum[x-1]<<endl;
		
	}

	
	
}