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無責任翻譯
A Hamiltonian circuit for Rubik's Cube has been constructed.
三階魔方的一個哈密爾頓圈已被發現。
Basically it is a sequence of quarter-turn moves that would (in theory) put a Rubik's cube through all of its 43,252,003,274,489,856,000 positions without repeating any of them, and then one more move restores the cube to the starting position.
基本上,這是一個轉動公式,(理論上)可以不重複地窮盡三階魔方的43,252,003,274,489,856,000種狀態,然後再轉動一次,就能使魔方回到原本的狀態。
In fact, this Hamiltonian circuit only uses turns of five of the six face layers of the cube. The back layer is never turned.
事實上,這個哈密爾頓圈只用了六個轉動面的其中五個,B並沒有被使用。
This .zip archive (about 7 megabytes) contains a specification on how this Hamiltonian circuit is constructed. See the readme.txt file within the archive for detailed information.
這個.zip壓縮檔(約7MB)內含構造出這個哈密爾頓圈的詳細方法。
[ 本帖最后由 nnkken 于 2012-2-21 15:23 编辑 ] |
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