Solve the programming task below in a Python markdown code block.
Given an array of integers, determine the minimum number of elements to delete to leave only elements of equal value.

Example  

$arr=[1,2,2,3]$  

Delete the $2$ elements $1$ and $3$ leaving $arr=[2,2]$. If both twos plus either the $1$ or the $3$ are deleted, it takes $3$ deletions to leave either $\left[3\right]$ or $\left[1\right]$.  The minimum number of deletions is $2$.

Function Description  

Complete the equalizeArray function in the editor below.  

equalizeArray has the following parameter(s):  

int arr[n]: an array of integers   

Returns  

int: the minimum number of deletions required  

Input Format

The first line contains an integer $n$, the number of elements in $\textbf{arr}$. 

The next line contains $n$ space-separated integers $arr\left[i\right]$.

Constraints

$1\leq n\leq100$
$1\leq arr[i]\leq100$

Sample Input
STDIN       Function
-----       --------
5           arr[] size n = 5
3 3 2 1 3   arr = [3, 3, 2, 1, 3]

Sample Output
2   

Explanation

Delete $arr[2]=2$ and $arr[3]=1$ to leave $ar r'=[3,3,3]$. This is minimal.  The only other options are to delete $4$ elements to get an array of either $\left[1\right]$ or $\left[2\right]$.