摘要：
Fight Against Traffic Little town Nsk consists of n junctions connected by m bidirectional roads. Each road connects two distinct junctions and no two 阅读全文
posted @ 2018-05-31 23:14
MengX
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摘要：
A.Div. 64 Top-model Izabella participates in the competition. She wants to impress judges and show her mathematical skills. Her problem is following: 阅读全文
posted @ 2018-05-31 23:00
MengX
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