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3进制

Posted by huicpc39 at 2005-11-27 22:05:11 on Problem 1702
In Reply To:谁讲一下做法。。或贴一个有效地址 Posted by:harrywy at 2005-10-24 12:07:11 
将给定的w化为3进制，用-1，0，1表示的3进制，注意2用（1，-1）表示。
如（5）10=（12）3=（2，-1）3=(1,-1,-1)3 
-1的在左边，1在右边。
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