Dynamic Sensor Buffer

#include <iostream>

int main() {
    int n;
    std::cin >> n;

    if (n < 1) {
        return 0;
    }

    // Write your dynamic buffer allocation code here
    int* buff = new int[n];
    int sum = 0;
    for(auto i=0;i<n;i++){
        std::cin>> buff[i];
        sum+=buff[i];
    }
    sum /=n;
    std::cout<<sum;
    return 0;
}