Solution: Find Peak Element
Explore how to identify a peak element in a 0-indexed integer array by applying a modified binary search technique. Understand the concept of peaks relative to neighboring values and learn a step-by-step approach to efficiently narrow down the search space. Gain skills to implement this O(log n) time and O(1) space solution, improving your problem-solving in 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 element (if there are multiple peaks, any valid peak index is acceptable), and your solution must run in
Constraints:
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