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In Reply To:求救！为什么总是WA？ Posted by:zhouhaiwei at 2006-08-07 18:48:22
In counting the number of solutions, two potential solutions are considered the same (and would only count as one solution) if they repeat the same string of decreasing prices, that is, if they "look the same" when the successive prices are compared. Thus, two different sequence of "buy" days could produce the same string of decreasing prices and be counted as only a single solution.
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