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Meteor Shower Description Bessie hears that an extraordinary meteor shower is coming; reports say that these meteors will crash into earth and destroy 阅读全文
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Red and Black Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 50913 Accepted: 27001 Description There is a rectangular room, covered with s 阅读全文
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Lake Counting Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 53301 Accepted: 26062 Description Due to recent rains, water has pooled in va 阅读全文
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Problem A: Assembly Required Princess Lucy broke her old reading lamp, and needs a new one. The castle orders a shipment of parts from the Slick Lamp 阅读全文
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Argus Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 12282 Accepted: 6110 Description A data stream is a real-time, continuous, ordered se 阅读全文