Problem
In an array, a peak element is one which is not smaller than its neighbors. Find and print the index of any one peak using pointers.
Input format
Input
input.txt
- First line: integer N (1 ≤ N ≤ 100) - Second line: N space-separated integers
Output format
Output
output.txt
- Index (0-based) of a peak element
Example
input
5 1 3 20 4 1
output
2
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Sample cases (from the problem)
Sample Case 1
Input
5 1 3 20 4 1
Expected output
2
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