Program To Delete Duplicate Elements From An Array

#include <stdio.h>
int main()
{
int arr[10]={10, 20, 10, 1, 100, 10, 2, 1, 5, 100}; 
int size=10;         
int i, j, k;       // Loop control variables
/*
* Find duplicate elements in array
*/
for(i=0; i< size; i++)
{
for(j=i+1; j< size; j++)
{
/* If any duplicate found */
if(arr[i] == arr[j])
{
/* Delete the current duplicate element */
for(k=j; k< size; k++)
{
arr[k] = arr[k + 1];
}
/* Decrement size after removing duplicate element */
size--;
/* If shifting of elements occur then don't increment j */
j--;
}
}
}
/*
* Print array after deleting duplicate elements
*/
printf("Array elements after deleting duplicates : ");
for(i=0; i< size; i++)
{
printf("%d ", arr[i]);
}
return 0;
}

#include <bits/stdc++.h>
using namespace std;
int main()
{
int i,j,k,size=10,arr[30]={10, 20, 10, 1, 100, 10, 2, 1, 5, 100};
for(i=0;i< size;++i)
for(j=i+1;j< size;)
{
if(arr[i]==arr[j])
{
for(k=j;k< size-1;++k)
arr[k]=arr[k+1];
--size;
}
else
++j;
}
cout<<"Array elements after deleting duplicates : ";
for(i=0;i< size;++i)
cout<< arr[i]<<" ";
return 0;
}

import java.util.Arrays;
import java.util.LinkedHashSet;
public class Main 
{
public static void main(String[] args) throws CloneNotSupportedException 
{
//Array with duplicate elements
Integer[] numbers = new Integer[] {10, 20, 10, 1, 100, 10, 2, 1, 5, 100};
//Create set from array elements
LinkedHashSet< Integer > linkedHashSet = new LinkedHashSet< >( Arrays.asList(numbers) );
//Get back the array without duplicates
Integer[] numbersWithoutDuplicates = linkedHashSet.toArray(new Integer[] {});
System.out.print("Array elements after deleting duplicates : ");
//Verify the array content
System.out.println( Arrays.toString(numbersWithoutDuplicates) );
}
}

mylist = [10, 20, 10, 1, 100, 10, 2, 1, 5, 100]
mylist = list(dict.fromkeys(mylist))
print("Array elements after deleting duplicates : ")
print(mylist)

using System;
using System.Linq;
class Program
{
static void Main(string[] args)
{
int[] ia = {10, 20, 10, 1, 100, 10, 2, 1, 5, 100};
int[] ia2 = ia.Distinct().ToArray();
Console.Write("Array elements after deleting duplicates : ");
foreach(int i in ia2) Console.Write("{0} ", i);
Console.WriteLine(); 
Console.ReadKey();
}
}

$arr = array(10, 20, 10, 1, 100, 10, 2, 1, 5, 100);
$result = array_unique($arr);
print("Array elements after deleting duplicates : ");
foreach ($result as $value) {
print_r($value);
echo " ";
}