How to create and delete pointers

pointers.cpp

// This source code written by Roland Ihasz 
#include <iostream>

using namespace std;

int main()
{
    int* MyPointer = nullptr;     // new pointer declared
    MyPointer = new int[3];       // memory dynamically allocated
    
    MyPointer[0] = 24;
    MyPointer[1] = 67;
    MyPointer[2] = 32;
    
    cout << MyPointer[0] << endl;
    cout << MyPointer[1] << endl;
    cout << MyPointer[2] << endl;
    
    cout << "Releasing dynamically allocated memory..." << endl;
    delete[] MyPointer;       // memory freed up
    MyPointer = nullptr;    // pointer changed to nullptr (null pointer)
    
    return 0;
}
/* 
 Arrays, allocated with new[], must be deallocated with delete[]
 */