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对没AC的同学一点提示

Posted by PlayerZ at 2008-08-07 08:58:43 on Problem 1011 
如果一些很bt的数据你的程序能瞬间地得出正确的结果，但又WA
比如这个：64
33 36 7 45 6 14 14 14 28 39 35 36 5 33 21 32 29 37 31 3 2 19 40 34 25 1 33 49 20 14 25 36 45 37 47 28 39 8 36 44 8 48 41 1 13 18 9 10 34 42 41 39 42 20 23 6 40 28 49 16 38 33 15 7
往往是因为你的搜索不完备，导致对某些数据可以得出正确的结果，但是无法通过。
重点检查一下递归的进入和退出的处理工作，比如对访问标记的操作。是不是有些地方有遗漏。
特别是递归中途return的情况
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