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题目:http://pta.patest.cn/pta/test/16/exam/4/question/666 PTA - Data Structures and Algorithms (English) - 5-4 Given a tree, you are supposed to list al 阅读全文
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题目:http://www.patest.cn/contests/pat-a-practise/1051 Given a stack which can keep M numbers at most. Push N numbers in the order of 1, 2, 3, ..., N an 阅读全文
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题目:http://www.patest.cn/contests/pat-a-practise/1074 Given a constant K and a singly linked list L, you are supposed to reverse the links of every K e 阅读全文