Submission

PPPPPPPPPPPPPPPPPPPP

Score: 100

User: TT

Problemset: ผลบวก (ง่าย)

Language: cpp

Time: 0.055 second

Submitted On: 2024-10-25 12:44:08

#include <bits/stdc++.h>
using namespace std;
const int Mxn = 1e6 + 7;
int n;
int p[Mxn];
int main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> n;
	for(int i = 1, x; i <= n; ++i) {
		cin >> x;
		p[i] = p[i - 1] + x;
	}
	int u, v;
	cin >> u >> v;
	cout << p[v + 1] - p[u];
    return 0;
}
/*
1
5
0 8 12 15 20
5
1 4
1 5
3 4
3 2
5 1

*/