I want this answered in C++.

Make sure you check and explain me step by step, please.

Program #3 (id: 169098) Inputs integer] array size o Validation: Must be greater than zero * [integers] values to fill array Outputs [list of integers] larger array [list of integers] first array Description Write a function that accepts an integer array and size as arguments. The function should create a new array that is twice the size of the first array. The function should copy the contents of the array to the new array and initialize the unused elements of the second array with zero. The function should return a pointer to the new array. Your function name should include the word "expand" in the name In the main function, you should ask the user how big the array will be, create the first array, and then loop to fill the values from the user Sample Outputs Enter the size of the array: 6 Enter Value 1 1 Enter Value 2: 2 Enter Value 3:3 Enter Value 4: 4 Enter Value 5: 5 Enter Value 6 6 The expanded array is: [1, 2, 3, 4, 5, 6, 0, 0, 0, 0, 0, 0] The original array is: [1, 2, 3, 4, 5, 6] Press any key to continue