Leetcode Problem 658. Find K Closest Elements

658. Find K Closest Elements

Leetcode Solutions

Binary Search To Find The Left Bound

  1. Initialize left to 0 and right to len(arr) - k.
  2. Perform binary search while left < right: a. Calculate mid as (left + right) // 2. b. Compare arr[mid] and arr[mid + k] to x. c. If arr[mid] is closer to x, move right to mid. d. Otherwise, move left to mid + 1.
  3. After binary search, left will be at the start of the k closest elements.
  4. Return the subarray from left to left + k.
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