摘要:
Tour de FranceTime Limit:1000MSMemory Limit:65536KTotal Submissions:3418Accepted:1655DescriptionA racing bicycle is driven by a chain connecting two sprockets. Sprockets are grouped into two clusters: the front cluster (typically consisting of 2 or 3 sprockets) and the rear cluster (typically consis 阅读全文
posted @ 2011-06-01 22:21
Eric-Yang
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