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Kth Missing Positive Number

Explore how to identify the kth missing positive integer from a strictly increasing array of positive numbers. Learn to apply modified binary search methods to solve the problem in less than linear time complexity, enhancing your problem-solving skills in coding interviews.

Statement

Given a strictly increasing array arr of positive integers and a positive integer k, return the kthk^{th} positive integer that is missing from arr.

Note: Could you solve this problem in less than O(n)O(n) ...