# Program to count the total number of duplicate elements in an array.

Here, we have a basic program example to count the duplicate elements in an array using different languages. This program is created in c language, c++, Java, and Python.

## Code to count duplicate elements in an array in C language

```#include <stdio.h>
void  main()
{
int i,j,n, count=0;
printf("\n\nEnter the size of the array\n");
scanf("%d",&n);
int arr[n];
printf("Input elements in the array :\n");
for(i=0; i<n; i++)
{
printf("element - %d : ",i);
scanf("%d", &arr[i]);
}

for(i=0; i<n; i++)
{
for(j=i+1; j<n; j++)
{
if(arr[i] == arr[j])
{
count++;
break;
}
}
}
printf("\nTotal number of duplicate elements found in array = %d", count);
return 0;
}
```

## Code to count duplicate elements in an array in C++ language

```#include <iostream>
using namespace std;

int main()
{
int i,j,n,count=0;
cout<<"\nEnter the size of the array\n";
cin>>n;
int arr[n];
cout<<"Input elements in the array :\n";
for(i=0; i<n; i++)
{
cout<<"element " << i <<" - ";
cin>>arr[i];
}
for(i=0; i<n; i++)
{
for(j=i+1; j<n; j++)
{
if(arr[i] == arr[j])
{
count++;
break;
}
}
}
cout<<"\nTotal number of duplicate elements found in array = "<<count;
return 0;
}
```

## Code to count duplicate elements in an array in Python language

```a=[]
count=0
n=int(input("Enter the size of the array: "))
print("Input elements in the array :")
for i in range(0,n):
l=int(input())
a.append(l)

for i in range(0,n):
for j in range(i+1,n):
if(a[i]==a[j]):
count=count+1
break
print("Total number of duplicate elements found in array = ",count)
```

## Code to count duplicate elements in an array in Java language

```import java.util.*;
public class arrays
{
public static void main(String[] args)
{
int n,count=0;
Scanner sc = new Scanner(System.in);
System.out.print("Enter size of the array : ");
n=sc.nextInt();

int[] arr = new int[n];

System.out.println("Enter the elements of the array: ");
for(int i=0; i<n; i++)
{
arr[i]=sc.nextInt();
}
for(int i=0; i<n; i++)
{
for(int j=i+1; j<n; j++)
{
if(arr[i] == arr[j])
{
count++;
break;
}
}
}

System.out.println("\nTotal number of duplicate elements found in array = "+ count);

}
}
```