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Hack!
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PKU v. THU (Finals)
Time Limit: 3.0 s
Memory Limit: 512 MB
Hackable ✓
# 7068. Lucky Sequence
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自定义测试
The problem was used in the following contest:
The 2020 ICPC Asia Yinchuan Regional Contest
This problem is prepared by
tangjz
.
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