Solution: Find Peak Element
Discover how to efficiently find a peak element in an integer array using a modified binary search technique. Understand the step-by-step approach to narrow down the search space in logarithmic time and identify a peak by comparing neighboring elements. This lesson teaches you to implement a fast and space-efficient solution, strengthening your problem-solving skills for technical coding interviews.
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Statement
You’re given a 0-indexed integer array nums. An index i is called a peak if nums[i] is strictly greater than its neighboring values (the elements immediately to its left and right, if they exist). Assume the array has virtual boundaries where nums[-1] = nums[n] = -∞, so the first and last elements can also be peaks.
Your task is to return the index of any one peak ...