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An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, suppose that when a 6-node binary tree (with the 阅读全文
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Given a sequence of positive integers and another positive integer p. The sequence is said to be a perfect sequence if M≤m×p where M and m are the max 阅读全文
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On a broken keyboard, some of the keys are worn out. So when you type some sentences, the characters corresponding to those keys will not appear on sc 阅读全文
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Given a list of N student records with name, ID and grade. You are supposed to sort the records with respect to the grade in non-increasing order, and 阅读全文
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Given an integer with no more than 9 digits, you are supposed to read it in the traditional Chinese way. Output Fu first if it is negative. For exampl 阅读全文
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Given N rational numbers in the form numerator/denominator, you are supposed to calculate their sum. Input Specification: Each input file contains one 阅读全文
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It is said that in 2011, there are about 100 graduate schools ready to proceed over 40,000 applications in Zhejiang Province. It would help a lot if y 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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The task of this problem is simple: insert a sequence of distinct positive integers into a hash table, and output the positions of the input numbers. 阅读全文
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The Japanese language is notorious for its sentence ending particles. Personal preference of such particles can be considered as a reflection of the s 阅读全文