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10877 - Diceoids

Posted: Mon Apr 03, 2006 2:10 pm
by mysword
what does the "rotation" exactly mean in the problem?
who can explain the sample in the problem description? why say (c) and (d) is in one class?
thx a lot!

Re: 10877

Posted: Sun May 21, 2006 1:00 am
by Martin Macko
mysword wrote:what does the "rotation" exactly mean in the problem?
who can explain the sample in the problem description? why say (c) and (d) is in one class?
thx a lot!
Here you have the cube (d):

Code: Select all

+-+
|4|
+-+-+-+-+
|5|1|2|6|
+-+-+-+-+
|3|
+-+
Rotating its front side up, you get:

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+-+
|5|
+-+-+-+-+
|3|1|4|6|
+-+-+-+-+
|2|
+-+
then rotating the new front side right, you get:

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+-+
|5|
+-+-+-+-+
|6|3|1|4|
+-+-+-+-+
|2|
+-+
what is equal to the cube (c).