说点问题吧，首先题目一定要多看，比较难看懂，那几类输出各自是基于什么条件首先要清楚
还有就是要在15步内得出结果，所以可以尝试80和8组成的字符串，这个答案是“can not be classified after 15 iterations”，一定要注意。
还有就是多次执行后的内存管理，千万别泄漏了，也千万别越界了。
最后感谢Ontheline，拿着你的程序，虽然我没有看代码，但是和我的程序的输出进行比对，最终找到了错误，多谢多谢。

最后，提供几个输入，我随即生成的，大家做个参考吧，呵呵
0000
0001
0111
1111
123456789
456137892
123213241561
543265544536464364
5412314454766464364
543267685643564364
5423434560121016464364

--------------------------------
0000 enters an inventory loop of length 2
0001 is self-inventorying after 8 steps
0111 is self-inventorying after 8 steps
1111 is self-inventorying after 8 steps
123456789 is self-inventorying after 5 steps
456137892 is self-inventorying after 5 steps
123213241561 enters an inventory loop of length 2
543265544536464364 enters an inventory loop of length 2
5412314454766464364 is self-inventorying after 3 steps
543267685643564364 enters an inventory loop of length 2
5423434560121016464364 is self-inventorying after 3 steps

• 你能帮我看一下吗？ 对照你的数据，有几个输出为afer 15 .....其他都正确，到底是哪里出问题了啊 (1062) zhouronghua 2010-03-26 20:57:51