#C6915. Count Mountain Peaks
Count Mountain Peaks
Count Mountain Peaks
You are given an array of integers representing the heights of a mountain range. Your task is to count the number of mountain peaks in the array. A mountain peak is defined as an element that is strictly greater than its immediate neighbors. Note that the first and the last element in the array cannot be considered as peaks.
More formally, an element hi (for 1 \leq i \leq n-2) is a peak if and only if:
\( h_i > h_{i-1} \) and \( h_i > h_{i+1} \).
Your program should read the input from stdin
and write the answer to stdout
.
inputFormat
The first line contains a single integer n (the number of elements in the array). The second line contains n space-separated integers representing the heights.
outputFormat
Output a single integer representing the number of mountain peaks in the array.
## sample4
1 2 3 4
0