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SquaresTime Limit:3500MSMemory Limit:65536KTotal Submissions:9185Accepted:3224DescriptionA square is a 4-sided polygon whose sides have equal length and adjacent sides form 90-degree angles. It is also a polygon such that rotating about its centre by 90 degrees gives the same polygon. It is not the 阅读全文
posted @ 2011-04-21 18:52
Eric-Yang
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