STL copy function, and comparing builtin arrays with std::array container class. See the video at https://youtu.be/L3IOAsgTpu4.

main.cpp

#include <iostream>
#include <algorithm>
#include <iterator>
#include <array>

using namespace std;

void cube(int& l) {
    l = l * l * l;
}

int main() {
//    int nums[] {1, 3, 5, 7, 11};
//    int* others;
//
//    others = nums;
    array<int, 5> nums {2, 4, 6, 8, 10};
    cout << "nums has size of " << nums.size() << endl;
    nums.at(0) = 200;
    array<int, 5> others;

    others = nums;
    others.at(0) = 100;
    cout << "others = ";
    copy(begin(others), end(others), ostream_iterator<int>(cout, " "));
    cout << endl;

    cout << "num = ";
    copy(begin(nums), end(nums), ostream_iterator<int>(cout, " "));
    cout << endl;

//    nums.at(5) = 7;
//    nums.at(-1) = 22;
    //    nums.at(6) = 13;

    cout << "cubed nums = ";
    for_each(begin(nums), end(nums), [](int& l){
        l = l * l * l;
    });

//    for_each(begin(nums), end(nums), [](auto l){
//        cout << l << ' ';
//    });
    copy(begin(nums), end(nums), ostream_iterator<int>(cout, " "));
    cout << endl;


}