harapriyabehera31/Representing-the-number-of-matching-pair

// # Representing-the-number-of-matching-pair

import java.util.Arrays; public class matching_pair {

public static void main(String[] args)
{
	int arr[]= {20,10,10,40,50,10,20,30,10,50,20};
	int c=0 ;
	int pair=0 ;
	Arrays.sort(arr);			
	int i=0 ;
	  do{
		for(int j=0 ; j<arr.length ; j++)
		{
		 if(arr[i]==arr[j])	 
			{
				c++;
			}
		}
		 if(c>1)
    		{
				pair+=(c/2) ;
			}
		      i+=c ;
			c=0;
		}while(i<arr.length);
	 
		System.out.println("Total Number Of Matching pair :"+pair);	
}	

}