easyArraysPattern: Linear Scan
Peak Elevation Sequence Solution
Problem Statement
Given an integer array, identify the number of elements that are strictly greater than their immediately preceding neighbor. The first element of the array should be ignored for this calculation as it has no preceding neighbor.
Examples
Example 1:
Input:[1, 3, 2, 5, 5, 8]
Output:3
Explanation: The elements 3 (greater than 1), 5 (greater than 2), and 8 (greater than 5) satisfy the condition.
Example 2:
Input:[10, 9, 8, 7]
Output:0
Explanation: No element is greater than the one preceding it.
Example 3:
Input:[1, 1, 1, 1]
Output:0
Explanation: Equal values do not satisfy the strictly greater than condition.
Constraints
- 1 <= array.length <= 10^4
- -10^5 <= array[i] <= 10^5
Time: O(n) Space: O(1)
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