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Problem
Given a rotated sorted array (all unique), and X, print the index (0-based) of X or -1 if not present.
Input format
Input
input.txt
- The first line contains N (1 ≤ N ≤ 100). - The second line contains N unique integers. - The third line contains X.
Output format
Output
output.txt
- Index of X, or -1.
Example
input
7 4 5 6 7 0 1 2 0
output
4
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Sample cases (from the problem)
Sample Case 1
Input
7 4 5 6 7 0 1 2 0
Expected output
4
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