Submission

Score: 100

User: SonnyHappy108

Problemset: ผลบวก (ง่าย)

Language: cpp

Time: 0.102 second

Submitted On: 2026-04-13 12:23:17

#include <bits/stdc++.h>
using namespace std;
//done : 1
int main(){
	long long N,i,x,y,s=0;
	cin >> N;
	int a[N];
	for(i=0;i<N;i++){
		cin >> a[i];
	}
	cin >> x >> y;
	for(i=x;i<=y;i++){
		s+=a[i];
	}
	cout << s;
}