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 *ptr = new(int[5]);int sum=0;
    for(int i=0;i<n;i++)
    {
        std::cin>>ptr[i];
        sum+=ptr[i];
    }
    std::cout<<(sum/n);
    delete[] ptr;

    return 0;
}

Solving Approach