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PKU v. THU (Finals)
Time Limit: 2 s
Memory Limit: 256 MB
# 7830. Remove the Tree
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Custom Test
The problem was used in the following contest:
Petrozavodsk Summer 2018. Day 7: Izhevsk STU + Ufa SATU Contest
XIX Open Cup named after E.V. Pankratiev, Grand Prix of Udmurtia
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