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PKU v. THU (Preliminary Round 2)
Time Limit: 2 s
Memory Limit: 512 MB
# 2281. BnPC
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Statement
(PTZ)
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Custom Test
Editorial
The problem was used in the following contest:
The 2021 Benelux Algorithm Programming Contest
The 2021 UK & Ireland Programming Contest
Petrozavodsk Winter 2022. Day 4. Almost Northern Contest
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