Package g0101_0200.s0162_find_peak_element

Class Solution

java.lang.Object

g0101_0200.s0162_find_peak_element.Solution

public class Solution
extends Object

162 - Find Peak Element\. Medium A peak element is an element that is strictly greater than its neighbors. Given an 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] = -∞`. You must write an algorithm that runs in `O(log n)` time. **Example 1:** **Input:** nums = [1,2,3,1] **Output:** 2 **Explanation:** 3 is a peak element and your function should return the index number 2. **Example 2:** **Input:** nums = [1,2,1,3,5,6,4] **Output:** 5 **Explanation:** Your 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 <= 1000` * -231 <= nums[i] <= 231 - 1 * `nums[i] != nums[i + 1]` for all valid `i`.

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	findPeakElement(int[] nums)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

findPeakElement

public int findPeakElement(int[] nums)