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Problem - 4325 http://acm.hdu.edu.cn/showproblem.php?pid=4325Problem DescriptionAs is known to all, the blooming time and duration varies between diff... 阅读全文
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Problem DescriptionJohn has several lines. The lines are covered on the X axis. Let A is a point which is covered by the most lines. John wants to kno... 阅读全文
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Problem Descriptiondxy has a collection of a series of books called "The Stories of SDOI",There aren(n≤19)books in this series.Every book has a number... 阅读全文