Solution: Find First and Last Position of Element in Sorted Array
Explore how to use modified binary search to locate the first and last occurrences of a target value in a sorted array. Understand the step-by-step approach to maintain logarithmic runtime while accurately finding boundaries, and learn to implement the helper function to achieve this efficiently.
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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
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