Find Peak Element
Explore how to identify a peak element in an integer array by applying a modified binary search approach. Understand the problem constraints and learn how to achieve an optimal logarithmic time solution. Practice coding the peak element finder and deepen your skills in search algorithms within sorted or rotated arrays.
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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 element (if there are multiple peaks, any valid peak index is acceptable), and your solution must run in