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DescriptionOn the evening of 3 August 1492, Christopher Columbus departed from Palos de la Frontera with a few ships, starting a serious of voyages of... 阅读全文
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DescriptionA new Semester is coming and students are troubling for selecting courses. Students select their course on the web course system. There are... 阅读全文
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DescriptionMath Olympiad is called “Aoshu” in China. Aoshu is very popular in elementary schools. Nowadays, Aoshu is getting more and more difficult. ... 阅读全文
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Description“Farm Game” is one of the most popular games in online community. In the community each player has a virtual farm. The farmer can decide to... 阅读全文
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In geometry the Fermat point of a triangle, also called Torricelli point, is a point such that the total distance from the three vertices of the trian... 阅读全文
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F -Computer Virus on Planet PandoraTime Limit:2000MSMemory Limit:128000KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeHDU 3695Appoint description:... 阅读全文
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F -Rotational PaintingTime Limit:1000MSMemory Limit:32768KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeHDU 3685Appoint description:DescriptionJos... 阅读全文
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C -To Be an Dream ArchitectTime Limit:1000MSMemory Limit:32768KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeHDU 3682Appoint description:Descripti... 阅读全文
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J -Infinite monkey theoremTime Limit:1000MSMemory Limit:32768KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeHDU 3689Appoint description:Descriptio... 阅读全文
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H -National Day ParadeTime Limit:1000MSMemory Limit:32768KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeHDU 3687Appoint description:DescriptionThe... 阅读全文