Given an unsorted array of n elements, find if the element k is present in the array or not. Complete the findNumber function. It has 2 parameters: 1. An array of integers, arr, denoting the elements in the array. 2. An integer, k, denoting the element to be searched in the array. The function must return a string "YES" or "NO' denoting if the element is present in the array or not. Input format: The first line contains an integer n, denoting the number of elements in the array arr. Each line i of the n subsequent lines {where 0 <_i