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ScenarioA single playing card can be placed on a table, carefully, so that the short edges of the card are parallel to the table's edge, and half the length of the card hangs over the edge of the tabl... 阅读全文
摘要：
cnblog是用来放解题报告的。如果您觉得您来错地方了，可以去我的博客转转 阅读全文
摘要：
In the 22nd Century, scientists have discovered intelligent residents live on the Mars. Martians are very fond of mathematics. Every year, they would hold an Arithmetic Contest on Mars (AC... 阅读全文