Majority Element

Given an array of size n, find the majority element. The majority element is the element that appears more than floor(n/2) times.

You may assume that the array is non-empty and the majority element always exists in the array.

Example

When the solution is called with arr = [ 2, 1, 2 ] the expected return value is 2 which occurs 2 times which is greater than 3/2.

Contributed by Murat Sütunç