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];
    for(int i=0; i< n; i++){
        std::cin >> buff[i];
    }
    int avg = 0;
    for(int i=0; i< n; i++){
        avg += buff[i];
    }
    std::cout << avg/n;
    delete[] buff;

    return 0;
}

Solving Approach