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Java-based LeetCode algorithm problem solutions, regularly updated
658\. Find K Closest Elements
Medium
Given a **sorted** integer array `arr`, two integers `k` and `x`, return the `k` closest integers to `x` in the array. The result should also be sorted in ascending order.
An integer `a` is closer to `x` than an integer `b` if:
* `|a - x| < |b - x|`, or
* `|a - x| == |b - x|` and `a < b`
**Example 1:**
**Input:** arr = [1,2,3,4,5], k = 4, x = 3
**Output:** [1,2,3,4]
**Example 2:**
**Input:** arr = [1,2,3,4,5], k = 4, x = -1
**Output:** [1,2,3,4]
**Constraints:**
* `1 <= k <= arr.length`
* 1 <= arr.length <= 104
* `arr` is sorted in **ascending** order.
* -104 <= arr[i], x <= 104