Java: Find Missing Elements of a Range

Difficulty Level: EASY

Problem Statement:

Given an array, arr[0..n-1] of distinct elements and a range [low, high], find all numbers that are in a range, but not the array. The missing elements should be printed in sorted order.

Input:

arr[] = { 1, 2, 6, 8 }, low = 1, high = 10

Output:

3 4 5 7 9 10