using System;

public class Program

{

    /// {1,1,1,2,5,5,10}

    // prints 1: 3, 2: 1, 5: 2, 10: 1

    static void FrequencyCount(int[] arr){

        throw new NotImplementedException();

    }

    public static void Main()

    {

        int[] frequencyArray = new int[]{1,1,1,2,5,5,10};

        FrequencyCount(frequencyArray);

    }

}