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Challenge: Find the Closest Number

Explore how to find the closest number to a target value within a sorted array by applying divide-and-conquer strategies. This lesson guides you through designing an algorithm that efficiently determines the number with the minimum absolute difference to the target using familiar techniques like binary search. You will develop problem-solving skills essential for coding interviews focused on algorithmic challenges.

Closest number

In any given sorted list, the closest number to a given number is the one whose absolute difference with the given number is closest to zero.

Have a look at the following illustration for a better understanding: ...