9. Write a C Program to remove Duplicate Element in a single dimensional Array.

 /*9. Write a C Program to remove Duplicate Element in a single dimensional Array.*/

#include <stdio.h>

void main()

{

    int arr[20];   // Declare an array of size 20

    int size;

    int i, j, k;       // Loop control variables

    clrscr();

 

    printf("Enter size of the array:");

    scanf("%d", &size); // Read size of the array

 

    printf("Enter elements in array:\n");

    for(i=0; i<size; i++)  // Read array elements

    {

        scanf("%d", &arr[i]);

    }

 

    //Find duplicate elements in the array

    for(i=0; i<size; i++)

    {

     for(j=i+1; j<size; j++)

     {

         // Check for duplicate elements

         if(arr[i] == arr[j])

         {

          // Delete the current duplicate element

                for(k=j; k < size - 1; k++)

                {

                    arr[k] = arr[k + 1];

                }

          // Decrement size after removing duplicate element

                size--;

          j--;

            }

        }

    }

 

    //Display array after deleting duplicate elements

    printf("\nArray elements after deleting duplicates: ");

    for(i=0; i<size; i++)

    {

     printf("%d\t", arr[i]);

    }

 

    getch();    

}