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不对呀。27就应该是7吧

Posted by xuezaiyue at 2004-10-27 20:39:40 on Problem 1945
In Reply To:27 ： 6 Posted by:gogo_ccnu at 2004-10-27 13:19:49

1+1->2
2+2->4
4+4->8
8+8->16
16+8->24
24+2->26
26+1->27
七步

1+1->2
2+2->4
4+4->8
8+8->16
16+8->24
24+4->28
28-1->27
七步

1+1->2
2+2->4
4+4->8
8+8->16
16+16->32
32-4->28
28-1->27
七步

请问大哥怎么做出的6步？

Followed by:

Re:不对呀。27就应该是7吧 (101) fqchenwei 2007-08-13 11:26:01

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