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PTA-自测-5 Shuffling Machine
题目来源：PTA-中国大学MOOC-陈越、何钦铭-数据结构-起步能力自测题 URL: https://pta.patest.cn/pta/test/17/exam/4/question/264/ 原题内容： Shuffling is a procedure used to randomize a deck of playing cards. Because standard sh原创 2017-08-14 20:49:54 · 504 阅读 · 0 评论 -
PTA-自测-4 Have Fun with Numbers
DescriptionNotice 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 246913578, which happens to be another 9-digit原创 2017-08-14 21:30:09 · 592 阅读 · 0 评论