There are usually (always) more tollbooths than there are incoming lanes of traffic (see former 2005 MCM Problem b).
而这些收费窗口通常都会比车道条数要多(详情参见2005年M CM的B问题)。
没问题,先生。
B: No problem. I'll arrange the meeting.
没问题,我来安排会议。
Well, that then says after another 12 steps, 12+12+t we're down to a problem with size t of b over 4.
更进一步,也就是。
The Hepatitis B subunit vaccine was produced at the same time that HIV-AIDS was being recognized as a problem in this country.
在乙肝亚基疫苗研制出来的同时,在该国家艾滋病开始被视为问题
Because if b was odd, then b minus one is even which means on the next step, I can cut the problem in half again.
这意味着我在下一步里解决的问题,规模要小了一半,好,课堂材料的第三题。
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