Submission

Score: 100

User: santanaja07

Problemset: ผลบวก (ง่าย)

Language: cpp

Time: 0.087 second

Submitted On: 2025-09-29 21:52:36

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

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