The statement "Given a point p between 0 and s = a_1+a_2+...a_n, it
has at most (n-1)! ways to reach." looks suspicious. Think about 1,2,3. There are 4 sequences that reaches 3 ([1,2,3],[2,1,3],[3,1,2],[3,2,1]) and 4 > 2!
有點問題吧
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回複:有點問題吧
-botong-
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07/27/2009 postreply
11:01:10
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回複:回複:有點問題吧
-dynamic-
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07/27/2009 postreply
18:12:36
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回複:回複:回複:有點問題吧
-botong-
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07/28/2009 postreply
10:22:54