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Graf bog'liqmi | HackNow
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Graf bog'liqmi
lock
UZ only
Qiyin
100 points
1 s
256 MB
Graph Theory (Basic)
Input format
Output format
Constraints
Examples
1
1
Example #1
Input
4 3 1 2 2 3 3 4
Output
YES
Solution editor
Python 3
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Language
PYTHON
UTF-8
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4 spaces
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