using System;

using System.Collections.Generic;

public class Program

{

    //Print the number and its frequency in an array 

//Input: [1,2,2,10,3,2],

    //Output: 1 -> 1, 2 -> 3, 3 -> 1, 10 -> 1 

    public static void Main()

    {

        int[] inputArray={1,2,2,10,3,2};

        Dictionary<int,int> frequency = new Dictionary<int,int>();

        foreach(var element in inputArray)

        {

        if(frequency.ContainsKey(element)){

            frequency[element]++;

        }

            else{

            frequency[element]=1;

            }

        }

        foreach(var ele in frequency){

            Console.WriteLine(ele.Key +"->" + ele.Value);

​

        }

    }

}