在超星上找到一个二阶的搜索程序

jinxian

<P>&nbsp; <BR>&nbsp; <BR>&nbsp;&nbsp;&nbsp; 这个是 “旋转 180° 按 两 步计算” 的计算结果！<BR>&nbsp;&nbsp; <BR>&nbsp; <BR>&nbsp; <BR>&nbsp; <BR>&nbsp; <BR>&nbsp;&nbsp;&nbsp; 下面是 “旋转 180° 按 一 步计算” 的计算结果！对比一下：<BR>&nbsp; </P>
<P><BR>&nbsp;&nbsp; 从复原态出发，其分布如下（旋转 180° 按一步计算）：<BR>&nbsp;&nbsp;&nbsp; 复原态 1<BR>&nbsp;&nbsp;&nbsp; 第01步 18<BR>&nbsp;&nbsp;&nbsp; 第02步 243<BR>&nbsp;&nbsp;&nbsp; 第03步 2874<BR>&nbsp;&nbsp;&nbsp; 第04步 28000<BR>&nbsp;&nbsp;&nbsp; 第05步 205416<BR>&nbsp;&nbsp;&nbsp; 第06步 1168516<BR>&nbsp;&nbsp;&nbsp; 第07步 5402254<BR>&nbsp;&nbsp;&nbsp; 第08步 20775972<BR>&nbsp;&nbsp;&nbsp; 第09步 45391890<BR>&nbsp;&nbsp;&nbsp; 第10步 15139920<BR>&nbsp;&nbsp;&nbsp; 第11步 64736<BR>&nbsp;&nbsp;&nbsp; 第12步 0<BR>&nbsp;&nbsp;&nbsp; -----------------------------<BR>&nbsp;&nbsp;&nbsp; 总&nbsp; 数 88179840&nbsp; <BR>&nbsp; <BR>&nbsp; <BR>&nbsp; <BR>&nbsp; </P>
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jinxian

<DIV class=t_msgfont id=postmessage_90696> <BR>&nbsp; <BR>&nbsp;&nbsp;&nbsp; 乌木 先生一定还记得这个帖子。 <A href="http://bbs.mf8-china.com/viewthread.php?tid=6351">http://bbs.mf8-china.com/viewthread.php?tid=6351</A><BR>&nbsp; <BR>&nbsp; &nbsp; <BR>
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<DIV align=left>pengw 的同一“状态”</DIV></TD>
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<DIV align=left>最小循环周期 为 7</DIV></TD>
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<DIV align=left>最小循环周期 为 18 </DIV></TD></TR>
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<TD><APPLET codeBase=http://bbs.mf100.org height=350 archive=rubikplayer.jar width=150 code=ch.randelshofer.rubik.RubikPlayerApp.class><PARAM NAME="stickersleft" VALUE="4,6,4,6,6,6,4,6,4"><PARAM NAME="stickersdown" VALUE="2,6,2,6,6,6,2,6,2"><PARAM NAME="scrgpt" VALUE="(R U' R U' B' U B' U R R U R U U)(R U' R U' B' U B' U R R U R U U)(R U' R U' B' U B' U R R U R U U)(R U' R U' B' U B' U R R U R U U)(R U' R U' B' U B' U R R U R U U)(R U' R U' B' U B' U R R U R U U)(R U' R U' B' U B' U R R U R U U)"><PARAM NAME="stickersup" VALUE="5,6,5,6,6,6,5,6,5"><PARAM NAME="stickersback" VALUE="3,6,3,6,6,6,3,6,3"><PARAM NAME="stickersfront" VALUE="0,6,0,6,6,6,0,6,0"><PARAM NAME="scrgptlanguage" VALUE="SupersetENG"><PARAM NAME="colortable" VALUE="0xf8f8f8,0x00732f,0xff4400,0xffd200,0x003373,0x8c000f,0x858585"><PARAM NAME="stickersright" VALUE="1,6,1,6,6,6,1,6,1"></APPLET></TD>
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<P><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; R U' R U' B' U B' U R R U R U U&nbsp;&nbsp; 最小循环周期 为 7&nbsp; ；<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; L' D' L' D L F' L' D F' L' D L' D' D'&nbsp;&nbsp; 最小循环周期 为 18&nbsp; 。<BR>&nbsp;&nbsp;&nbsp; <BR>&nbsp;&nbsp;&nbsp; <BR>&nbsp;&nbsp;&nbsp;&nbsp; 以上&nbsp; 正六面体二阶魔方 公式为“<FONT color=blue><STRONG>同一状态</STRONG></FONT>”而“<FONT color=red><STRONG>不同循环周期</STRONG></FONT>”的公式。<BR>&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp; 不同“公式”可以决定 pengw 的同一“状态”，<FONT color=blue><STRONG>“循环周期”随不同“公式”<BR>翩翩起舞</STRONG></FONT>，根本没把 pengw 的 同一“状态”&nbsp; 放在眼里！ 讽刺又风趣！ 呵呵！<BR>&nbsp; <BR>&nbsp; </P>
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jinxian

&nbsp; <BR>&nbsp; <BR>&nbsp;&nbsp;&nbsp; “最小循环周期 为 7” 、“最小循环周期 为 18”的两个是通常意义的“同态”，但<BR>“方位”不同，导致它们的“循环周期”不同！&nbsp; 其根本原因是因为 正六面体 N 阶魔方 的<BR>“整体翻转”也具备“奇偶差异性”！<BR>&nbsp; <BR>&nbsp; <BR>&nbsp; <BR>&nbsp;&nbsp;&nbsp; 本主题中，“最小循环周期 为 7” “最小循环周期 为 18”的两通常意义的“同态”<BR><FONT color=red>“方位”不同，不能消</FONT>。只有在通常意义的“同态”<FONT color=blue>“方位”也相同 时 才 消“同态”</FONT>！<BR>&nbsp; <BR>&nbsp;<BR>&nbsp;&nbsp; <BR>&nbsp;