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不想吐槽什么,纯向量旋转,没什么技巧可言,耐心好的可以做做,题目10-5的unit到底是用来判断什么的?看不明白,不糟蹋业余时间了

Posted by ixor at 2013-01-25 16:26:44 on Problem 1070


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