Program to Remove duplicate Element in an Array

Below is a simple and easy to understand program to find and remove any duplicate element present in specified array.#include<stdio.h>
#include<conio.h>
void main()
{
int a[20], i, j, k, n;
clrscr();

printf(“\nEnter array size : “);
scanf(“%d”,&n);

printf(“\nEnter %d array element : “, n);
for(i = 0; i < n; i++)
{
scanf(“%d”,&a[i]);
}

printf(“\nOriginal array is : “);
for(i=0;i< n;i++)
{
printf(” %d”,a[i]);
}

printf(“\nNew array is : “);
for(i=0; i < n; i++)
{
for(j=i+1; j < n; )
{
if(a[j] == a[i])
{
for(k=j; k < n;k++)
{
a[k] = a[k+1];
}
n–;
}
else {
j++;
}
}
}

for(i=0; i < n; i++)
{
printf(“%d “, a[i]);
}
getch();
}

 

OutputEnter array size : 5
Enter 5 array element : 11 13 11 12 13
Original array is : 11 13 11 12 13
New array is : 11 13 12