#include <iostream>
#include <math.h>
#include <conio.h>

using namespace std;

void Full(int* arr, int size)
{
    for (int i = 0; i < size; i++)
    {
        *(arr + i) = rand() % 29;
    }

}
void Show(int* arr, int size)
{
    for (int i = 0; i < size; i++)
    {
        cout << *(arr + i) << " ";
    }
}
int* CreatArr(int size)
{
    int* arr = new int[size];
    return arr;

}
int* Add(int* arr, int* size, int number)
{
    (*size)++;
    int* temp = new int[*size];
    for (int i = 0; i < (*size) - 1; i++)
    {
        temp[i] = arr[i];
    }
    temp[*size - 1] = number;
    delete[]arr;
    arr = temp;
    return arr;
}
void Deletex(int* arr, int size)
{
    Show(arr, size - 1);
}
int* Delete(int* arr, int size)
{
    int* arrNew = new int[size];

    for (size_t i = 0; i < size - 1; i++)
    {
        arrNew[i] = arr[i];
    }
    return arrNew;
    //Show(arr, size - 1);
}
int* InsertEllement(int* Arr, int SIZE, int numb, int index) {

    int* newArray = new int[++SIZE]; // создаем новый массив
    for (int i = 0; i < index; ++i) // копипастим массив элементы до index
        newArray[i] = Arr[i];
    newArray[index] = numb;
    for (int i = index; i < SIZE - 1; ++i) // копипастим массив после index
        newArray[i + 1] = Arr[i];
    delete[]Arr; // чистим прошлый массив
    Arr = newArray;
    return newArray;
}

void main()
{
    int size;
    cout << "Enter number size of arr: ";
    cin >> size;
    int* arr = new int[size];
    cout << endl;
    Full(arr, size);
    Show(arr, size);
    int number = -1;
    char choice = 'y';
    do
    {
        cout << "\n\nDo you want to add number? y/n ";
        cin >> choice;
        if (choice == 'y') {
            cout << "\n\nEnter new number: ";
            cin >> number;
            arr = Add(arr, &size, number);
            system("cls");
            Show(arr, size);
        }

    } while (choice != 'n');
    cout << "\n";
    cout << endl;

    Delete(arr, size);

    Show(Delete(arr, size), size-1);

    delete[]arr;
}