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对二叉树的节点来说,有本身的值域,有指向左孩子和右孩子的两个指针;对双向链表的节点来说,有本身的值域,有指向上一个节点和下一个节点的指针。在结构上,两种结构有相似性,现在有一棵搜索二叉树,请将其转换为一个有序的双向链表。 阅读全文
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When register on a social network, you are always asked to specify your hobbies in order to find some potential friends with the same hobbies. A socia 阅读全文
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A supply chain is a network of retailers(零售商), distributors(经销商), and suppliers(供应商)-- everyone involved in moving a product from supplier to customer 阅读全文
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This time your job is to fill a sequence of N positive integers into a spiral matrix in non-increasing order. A spiral matrix is filled in from the fi 阅读全文
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Given a sequence of positive numbers, a segment is defined to be a consecutive subsequence. For example, given the sequence { 0.1, 0.2, 0.3, 0.4 }, we 阅读全文