[1]Input //Allow user to input integers individually in the array.
  [2]Delete //Delete a certain integer from the array.
  [3]Destroy //Remove all values from the array

#include <stdio.h>
#include <conio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <windows.h>

int menu();
int MenuNavigation(int rPosition,int nPosition);
int opt1();
int opt2();
int opt3();

int main()
{
    int x;

    for(;;)
    {
        x = menu();
        if(x == 1)
        {
            return 0;
        }
    }

    getch();
    return 0;
}
int menu()
{
    system("cls");
    int position = 1;
    int kPress = 0;

    while(kPress != 13)
    {
        system("cls");

        printf("n");
        MenuNavigation(1,position); printf(" INPUT ARRAYn");
        MenuNavigation(2,position); printf(" DELETE ARRAYn");
        MenuNavigation(3,position); printf(" DESTROY ALL ARRAYn");
        MenuNavigation(4,position); printf(" QUITn");
        printf("nnUse arrow keys to navigate the Menu and Press Enter key to Enter");

        kPress = getch();


        if(kPress == 80 && position != 4)
        {
            position++;
        }
        else if(kPress == 72 && position != 1)
        {
            position--;
        }
        else
        {
            position = position;
        }
    }
    if(position == 1)
    {
        opt1();
    }
    else if(position == 2)
    {
        opt2();
    }
    else if(position == 3)
    {
        opt3();
    }
    else if(position == 4)
    {
        return 1;
    }
    /*switch(position)
    {
        case 1:
            opt1();
            menu();
            break;
        case 2:
            opt2();
            break;
        case 3:
            opt3();
            break;
        case 4:
            printf("nnnEXITTING PROGRAM PRESS ANY KEY TO CONTINUE...");
            getch();
            return 0;
    }*/
}
int MenuNavigation(int rPosition,int nPosition)
{
    if(rPosition == nPosition)
    {
        printf("[X]");
    }
    else
    {
        printf("   ");
    }
}
int opt1()
{
    system("cls");

    int arr[20];

    printf("INPUT ARRAYn");
    printf(">>");
    scanf("%d", &arr);
    printf("nn");

    for(int l=0;l<1;l++)
    {
        printf("nData[%d] = %d",l,arr[l]);
    }

    printf("nnArray STORED! Returning back to main menu...");
    getch();

    return arr[20];
}
int opt2()
{
    int pos,i;
    int *arr;
    system("cls");
    printf("DELETE ARRAYnn");
    printf("Enter the element position of the array to deleten");
    printf(">>");
    scanf("%d", &pos);
     if(pos==20+1 || pos<0)
    {
        printf("Invalid position! Please enter position between 1 to 20");
    }
    else
    {
        for(i=pos-1; i<20-1; i++)
        {
            arr[i] = arr[i + 1];
        }
    }
    printf("nElements of array after delete are : ");
    for(i=0; i<20; i++)
    {
        printf("%dt", arr[i]);
    }

}
int opt3()
{
    //int *arr;
    //arr = opt1();
    //printf("%d",*arr);
}