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 *buffer = new int[n];
    int sum = 0;
    for(int i = 0; i < n; i++){
        std::cin >> buffer[i];
        sum += buffer[i];
    }
    std::cout << sum/n;
    delete[] buffer;
    buffer = nullptr;
    return 0;
}