Submission

Score: 100

User: mungkyskibidi

Problemset: ผลบวก (กลาง)

Language: cpp

Time: 0.087 second

Submitted On: 2026-04-18 13:33:35

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

int arr[1000000] ,arr1[1000000] , arr2[1000];

int main(){
	int n ;
	cin >> n;
	
	for(int i=1;i<=n;i++) cin >> arr[i];
	
	int m , a , b;
	cin >> m ;
	
	for(int i=1;i<=n;i++){
		arr1[i]=arr1[i-1] + arr[i] ;

	}
	
	for(int i=0;i<m;i++){
		cin >> a >> b;
		arr2[i] = arr1[b+1] - arr1[a];
	}
	
	for(int i=0;i<m;i++) cout << arr2[i] << endl;	
}