#include<iostream>
#include<conio.h>
#include<ctime>
#include<Windows.h>
#include<iomanip>
using namespace std;

#include<iostream>
#include<time.h>
#include<iomanip>
#include<stdlib.h>
using namespace std;

int** Create(int row, int col)
{
    int** arr;
    arr = new int* [row];
    for (int i = 0; i < row; i++)
    {
        arr[i] = new int[col];
    }
    return arr;
}

void Fill(int** arr, int height, int width)
{
    for (int i = 0; i < height; i++)
    {
        for (int j = 0; j < width; j++)
        {
            arr[i][j] = rand() % 100;
        }
    }
}

void Show(int** arr, int height, int width)
{
    for (int i = 0; i < height; i++)
    {
        for (int j = 0; j < width; j++)
        {
            cout << setw(3) << arr[i][j] << " ";
        }
        cout << "\n";
    }
    cout << "\n";
}

void Del(int** arr, int row)
{
    for (int i = 0; i < row; i++)
    {
        delete[]arr[i];
    }
    delete[]arr;
}
int** Add_Col(int** arr, int height, int& width)
{
    int** arr_1;
    int pos;
    cout << "Enter number of column you want add" << endl;
    cin >> pos;
    if (pos > width)
    {
        cout << "Wrong choce!\n";
        return 0;
    }
    else
    {
        arr_1 = Create(height, width + 1);
        for (int i = 0; i < height; i++)
        {
            for (int j = 0; j < pos; j++)
            {
                arr_1[i][j] = arr[i][j];
            }
        }
        for (int i = 0; i < height; i++)
        {
            for (int j = 0; j < width - pos; j++)
            {
                arr_1[i][j + pos + 1] = arr[i][j + pos];
            }

        }
        width++;
        for (int i = 0; i < height; i++)
        {
            for (int j = pos; j < pos + 1; j++)
            {
                arr_1[i][j] = rand() % 100;
            }

        }
        Del(arr, height);
        arr = arr_1;
        return arr;
    }
}

int** Add_Row(int** arr, int& height, int width)
{
    int** arr_2;
    int pos;
    cout << "Enter number of row you want add" << endl;
    cin >> pos;
    if (pos > height)
    {
        cout << "Wrong choice!\n";
        return 0;
    }
    else
    {
        arr_2 = Create(height + 1, width);
        for (int i = 0; i < pos; i++)
        {
            for (int j = 0; j < width; j++)
            {
                arr_2[i][j] = arr[i][j];
            }
        }
        for (int i = 0; i < height - pos; i++)
        {
            for (int j = 0; j < width; j++)
            {
                arr_2[i + pos + 1][j] = arr[i + pos][j];
            }
        }
        height++;
        for (int i = pos; i < pos + 1; i++)
        {
            for (int j = 0; j < width; j++)
            {
                arr_2[i][j] = rand() % 100;
            }
        }
        Del(arr, height - 1);
        arr = arr_2;
        return arr;

        return arr;
    }
}

int** Delete_Col(int** arr, int height, int& width)
{
    int pos;
    int** arr_3;
    cout << "Enter number of column you want delete\n";
    cin >> pos;
    if (pos >= width)
    {
        cout << "Wrong choice!\n";
        return 0;
    }
    else
    {
        arr_3 = Create(height, width);
        for (int i = 0; i < height; i++)
        {
            for (int j = 0; j < pos; j++)
            {
                arr_3[i][j] = arr[i][j];
            }
        }
        for (int i = 0; i < height; i++)
        {
            for (int j = pos; j < width - 1; j++)
            {
                arr_3[i][j] = arr[i][j + 1];
            }
        }
        width--;
        Del(arr, height);
        arr = arr_3;
        return arr;
    }
}

int** Delete_Row(int** arr, int& height, int width)
{
    int pos;
    int** arr_4;
    cout << "Enter number of row you want delete" << endl;
    cin >> pos;
    if (pos >= height)
    {
        cout << "Wrong choice!\n";
        return 0;
    }
    else
    {
        arr_4 = Create(height - 1, width);
        for (int i = 0; i < pos; i++)
        {
            for (int j = 0; j < width; j++)
            {
                arr_4[i][j] = arr[i][j];
            }

        }
        for (int i = pos; i < height - 1; i++)
        {
            for (int j = 0; j < width; j++)
            {
                arr_4[i][j] = arr[i + 1][j];
            }
        }
        height--;
        Del(arr, height);
        arr = arr_4;
        return arr;
    }
}


int main()
{
    srand(time(NULL));
    int width, height;
    int choice;
    int pos;
    cout << "Enter width\n"; cin >> width;
    cout << "Enter hight\n"; cin >> height;
    int** arr;
    arr = Create(height, width);
    Fill(arr, height, width);
    Show(arr, height, width);
    cout << "Enter you choice\n1 - Add column\n2 - Add row\n3 - Delete column\n4 - Delete row\n";
    cin >> choice;
    switch (choice)
    {
    case 1:
        arr = Add_Col(arr, height, width);
        Show(arr, height, width);
        break;
    case 2:

        arr = Add_Row(arr, height, width);
        Show(arr, height, width);
        break;
    case 3:

        arr = Delete_Col(arr, height, width);
        Show(arr, height, width);
        break;

    case 4:

        arr = Delete_Row(arr, height, width);
        Show(arr, height, width);
        break;

    default:
        cout << "Wrong choice\n";
        break;
    }
    Del(arr, height);

}