Find First and Last Position in Sorted Array — C++ Coding Problem
Difficulty: medium | Category: binary-search
Problem Description
Given an array of integers `nums` sorted in non-decreasing order, find the starting and ending position of a given `target` value. If `target` is not found in the array, return `[-1, -1]`. You must write an algorithm with O(log n) runtime complexity.
Examples
Example 1
Input: nums = [5,7,7,8,8,10], target = 8
Output: [3,4]
Example 2
Input: nums = [5,7,7,8,8,10], target = 6
Output: [-1,-1]
Example 3
Input: nums = [], target = 0
Output: [-1,-1]