#include <stdio.h>

int main()
{
    int size  = 8;
    int i,j,n = 0;


    int arr[] = {10,10,10,10,12 ,12 ,13,10};



    for(i = 0; i < size; i++ )
    {
        for(j = i+1; j < size;j++)
        {
            if(arr[i] == arr[j])
            {
                    n++;
                    break;
            }


        }





    }

    printf("The no. of duplicates are %d",n );


}