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Description Description 有三个正整数a,b,c(0 < a,b,c < 10^12),其中c不等于b。若a和c的最大公约数为b,现已知a和b,求满足条件的最小的c。 有三个正整数a,b,c(0 < a,b,c < 10^12),其中c不等于b。若a和c的最大公约数为b,现已知 阅读全文
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Description Description Contest time again! How excited it is to see balloons floating around. But to tell you a secret, the judges' favorite time is 阅读全文
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Description Description Given a string containing only 'A' - 'Z', we could encode it using the following method: 1. Each sub-string containing k same 阅读全文
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Description Description 每一本正式出版的图书都有一个ISBN号码与之对应,ISBN码包括9位数字、1位识别码和3位分隔符,其规定格式如“x-xxx-xxxxx-x”,其中符号“-”是分隔符(键盘上的减号),最后一位是识别码,例如0-670-82162-4就是一个标准的ISBN 阅读全文
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Description Description We all use cell phone today. And we must be familiar with the intelligent English input method on the cell phone. To be specif 阅读全文