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逛论坛的朋友帮忙指点一下:给定一个数,求一个最小的base,使得该数的成为回文数

Posted by ljfljf2007 at 2009-12-10 13:49:11
给定一个数,求一个最小的base,使得该数的成为回文数

sample
in:
2
3
25
30
out:
3
2
4
9
说明
2的3进制表示是2
3的2进制表示是11
25的24进制表示是121
30的9进制表示是33

关于这个问题,大家有什么好的解法?如果枚举,是否有什么好的剪枝?

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