摘要:
This time, you are supposed to find A+B where A and B are two polynomials. Input Each input file contains one test case. Each case occupies 2 lines, a 阅读全文
摘要:
Calculate a + b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less t 阅读全文
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Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "ins 阅读全文
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Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 2469135 阅读全文