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Solution: Find First and Last Position of Element in Sorted Array

Explore how to apply a modified binary search algorithm to efficiently find the first and last positions of a target element in a sorted array. Understand the process of searching boundaries while maintaining logarithmic run time and constant space complexity to solve this common interview problem.

Statement

You are given an integer array, nums, that is sorted in non-decreasing order. Your task is to find the first and last indexes of a given value, target, within this array.

If the target does not appear in the array at all, return [-1, -1].

Note: You must write an algorithm with O(logn)O(\log n) ...