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1.题目An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, ... 阅读全文
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1.题目Given a sequence of positive integers and another positive integer p. The sequence is said to be a per... 阅读全文
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1.题目On a broken keyboard, some of the keys are worn out. So when you type some sentences, the characters c... 阅读全文
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1.题目A supply chain is a network of retailers（零售商）, distributors（经销商）, and suppliers（供应商）-- everyone involv... 阅读全文
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1.题目According to Wikipedia:Insertion sort iterates, consuming one input element each repetition, and growi... 阅读全文
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1.题目For two rational numbers, your task is to implement the basic arithmetics, that is, to calculate their... 阅读全文