摘要：
The string APPAPT contains two PAT’s as substrings. The first one is formed by the 2nd, the 4th, and the 6th characters, and the second one is formed 阅读全文
摘要：
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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It is said that in 2013, there were about 100 graduate schools ready to proceed over 40,000 applications in Zhejiang Province. It would help a lot if 阅读全文
摘要：
Given N rational numbers in the form “numerator/denominator”, you are supposed to calculate their sum. Input Specification: Each input file contains o 阅读全文