Submission

Score: 100

User: boss

Problemset: ผลบวก (กลาง)

Language: cpp

Time: 0.086 second

Submitted On: 2025-11-02 18:50:30

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n;
	int arr[n];
	int sum[n]={0};
	for(int i=0;i<n;i++)
	{
		cin>>arr[i];
	}
	for(int i=0;i<n;i++)
	{
		
		sum[i]+=sum[i-1]+arr[i];
		
//		cout<<sum[i]<<"\n";
	}
	int number;
	int x,y;
	cin>>number;
	for(int i=0;i<number;i++)
	{
		cin>>x>>y;
		cout<<sum[y]-sum[x-1]<<"\n";
	}
	
	
	
	
	
	
	return 0;
}