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Yo'naltirilmagan tsikl (DSU) | HackNow
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Problem
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Yo'naltirilmagan tsikl (DSU)
lock
UZ only
Oson
100 points
3 s
256 MB
Input format
Output format
Constraints
Examples
1
1
Example #1
Input
4 4 1 2 2 3 3 4 1 3
Output
YES
Solution editor
Python 3
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Language
PYTHON
UTF-8
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4 spaces
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+
Enter
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