Submission

Status:

PPPPPPPPPPPPPPPPPPPP

Score: 100

User: NovemNotes

Problemset: ผลบวก (ง่าย)

Language: cpp

Time: 0.059 second

Submitted On: 2024-10-24 15:23:11

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

#define ll long long

ll n,a,b;
vector<ll> v;

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n;
    v.resize(n+9,0);
    for(int i=1;i<=n;i++){
        cin >> v[i];
        v[i] += v[i-1];
    }
    cin >> a >> b;
    a++;b++;
    cout << v[b] - v[a-1];
    return 0;
}