2014年9月18日
摘要：
Problem DescriptionA number whose only prime factors are 2,3,5 or 7 is called a humble number. The sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15,... 阅读全文
posted @ 2014-09-18 16:45
想总结却停留不前？
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