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PKU v. THU (Preliminary Round 2)
Time Limit: 2 s
Memory Limit: 1024 MB
# 5601. Streets Ahead
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The problem was used in the following contest:
2022-2023 ICPC North America - North Central NA Regional Contest
2022-2023 ICPC North America - Mid-Atlantic USA Regional - Division 2
2022-2023 ICPC North America - Southeast USA Regional - Division 2
2022-2023 ICPC North America - South Central USA Regional - Division 2
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