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先得到的结果一定是最短的么？

Posted by speedfirst at 2007-02-08 10:50:43 on Problem 1166 
例如如果按照遍历的方法，先得到的解决方案是000000001 0000000002 ... 333333333, 假如一个解决方案001122101和101000000的效果对某个输入是一样的，但是前者必然被先找到。

我就加了个判断解决方案长度的办法（发现大家都没加），结果是WA。不加这个判断，按照取第一个找到的方案的方法就OK。真是很奇怪。难道是我理解题意错了？
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