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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