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Birinchi takrorlanmaydigan element | HackNow
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Birinchi takrorlanmaydigan element
lock
UZ only
Oson
100 points
1 s
256 MB
Input format
Output format
Constraints
Examples
1
1
Example #1
Input
6 2 1 3 2 3 5
Output
1
Solution editor
Python 3
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PYTHON
UTF-8
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4 spaces
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