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];

    for(size_t i = 0; i < n; i++){
        std::cin >> buffer[i];
    }

    int sum = 0;
    for(size_t i = 0; i < n; i++){
        sum += buffer[i];
    }
    std::cout << (sum/n) << std::endl;


    delete[] buffer;

    return 0;
}

Solving Approach