How to Solve Find Peak Element Problem
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Find Peak Element
A peak element is an element that is strictly greater than its neighbors. Given a 0-indexed integer array nums, find a peak element, and return its index. If the array contains multiple peaks, return ...
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Understanding the Find Peak Element Problem
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Problem Statement
A peak element is an element that is strictly greater than its neighbors. Given a 0-indexed integer array nums, find a peak element, and return its index. If the array contains multiple peaks, return the index to any of the peaks. You may imagine that nums[-1] = nums[n] = -∞. In other words, an element is always considered to be strictly greater than a neighbor that is outside the array. You must write an algorithm that runs in O(log n) time.
Find Peak Element
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Examples
nums = [1,2,3,1]23 is a peak element and your function should return the index number 2.
nums = [1,2,1,3,5,6,4]5Your function can return either index number 1 where the peak element is 2, or index number 5 where the peak element is 6.
Constraints
1 <= nums.length <= 1000231 <= nums[i] <= 231 - 1nums[i] != nums[i + 1] for all valid i.How Interview Coder Helps with Leetcode Problems
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