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Solution: Find K Closest Elements

Explore methods to solve the problem of finding k closest elements to a target value in a sorted array. Understand the naive approach with sorting and an optimized method using modified binary search and two pointers. Learn how to apply these strategies efficiently to improve time and space complexity while coding in JavaScript.

Statement

You are given a sorted array of integers, nums, and two integers, target and k. Your task is to return k number of integers that are close to the target value, target. The integers in the output array should be in a sorted order.

An integer, nums[i], is considered to be closer to target, as compared to nums[j] when |nums[i] - target| << |nums[j] - target|. However, when |nums[i] - target| == |nums[j] - target|, the smaller of the two values is selected.

Constraints:

  • 11 \leq k \leq nums.length
  • 11 \leq nums.length 103\leq 10^3
  • nums is sorted in ascending order.
  • 104-10^4 \leq nums[i], target 104\leq 10^4
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