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📄 pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.htm

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    <TD colSpan=2>注意:这是一个归档主题。它是只读的。 <BR>此主题先前所在的论坛:计算机</TD></TR>
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    <TD vAlign=center width="18%"><FONT color=#ffffff><B>发表人</B></FONT></TD>
    <TD vAlign=center><FONT 
      color=#ffffff><B>主题:&nbsp;&nbsp;pollux!出栈进栈的排列序列问题的算法!!!</B></FONT></TD></TR>
  <TR bgColor=#dcdcdc>
    <TD vAlign=top noWrap width="18%">seflyer<BR><IMG 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/Image18.gif" 
      vspace=5><BR><B>中级站友</B><BR>积分:305<BR>发贴:75<BR>来自:china<BR>资格:2001-07-14<BR></TD>
    <TD vAlign=top><IMG src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/icon10.gif" 
      align=absMiddle border=0>&nbsp;发表于 2001-10-04 <FONT 
      color=#000000>14:19:08</FONT>&nbsp;&nbsp;<A target=_blank 
      href="http://bbs.kaoyan.com/viewuser.asp?username=seflyer"><IMG 
      alt=按此观看seflyer的个人资料 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/profile.gif" align=absMiddle 
      border=0></A>&nbsp;<IMG alt=该用户不允许显示它的电子邮件 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/email.gif" align=absMiddle 
      border=0>&nbsp;<A 
      href="http://search.tencent.com/cgi-bin/friend/user_show_info?ln=85930412"><IMG 
      alt="seflyer 的 oicq 是85930412,查看 85930412 的资料" 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/oicq.gif" align=absMiddle 
      border=0></A>&nbsp;<A 
      href="http://bbs.kaoyan.com/pm.asp?action=newpm&amp;recipient=seflyer&amp;subject=pollux%A3%A1%B3%F6%D5%BB%BD%F8%D5%BB%B5%C4%C5%C5%C1%D0%D0%F2%C1%D0%CE%CA%CC%E2%B5%C4%CB%E3%B7%A8%A3%A1%A3%A1%A3%A1"><IMG 
      alt=发送悄悄话给seflyer src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/pm.gif" 
      align=absMiddle border=0></A>&nbsp;<A target=_blank 
      href="http://bbs.kaoyan.com/search.asp?action=searchuser&amp;username=seflyer"><IMG 
      height=16 alt=搜索seflyer的所有帖子 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/find.gif" width=16 
      align=absMiddle border=0></A>&nbsp;<A 
      href="http://bbs.kaoyan.com/posting.asp?Forum=8&amp;Topic=427759&amp;TopicSubject=pollux%A3%A1%B3%F6%D5%BB%BD%F8%D5%BB%B5%C4%C5%C5%C1%D0%D0%F2%C1%D0%CE%CA%CC%E2%B5%C4%CB%E3%B7%A8%A3%A1%A3%A1%A3%A1&amp;action=editarchive"><IMG 
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      align=absMiddle border=0 ?></A>&nbsp;
      <HR>
      你给出的问题我想了想,给出以下的seflyer算法,不排除有错误的可能,不过我验证了一下好像没错!可能对栈的操作有点敷衍了事,不过不影响理解。<BR>那个扩大了的称球问题,应该是NP完全的。没有最少的比较次数。
      <P>BOOL Seflyer(type initial[Max],type 
      out[Max])<BR>{//验证给定的输入序列initial[Max],out[Max]是否是合法的进栈出栈所得序列<BR>&nbsp;&nbsp;BOOL 
      Mark[Max];//凡是出栈的元素均打上标记,以后不再对它进行入栈操作<BR>&nbsp;&nbsp;BOOL 
      IsinStack[Max];//凡是在栈中的元素均打上标记,以后不再对它进行入栈操作<BR>&nbsp;&nbsp;Stack S; 
      //存放索引的栈<BR>&nbsp;&nbsp;InitialStack(S);<BR>&nbsp;&nbsp;for(i=0;i&lt;Max;i++)//初始化<BR>&nbsp;&nbsp;{ 
      Mark[i]=FALSE; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;IsinStack[i]=FALSE;<BR>&nbsp;&nbsp;} 
      <BR>&nbsp;&nbsp;for(i=0;i&lt;Max;i++)<BR>&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;while(initial[j]!=out[i]) 
      //找到第i个出栈元素在初始序列中的位置j<BR>j++; 
      <BR>&nbsp;&nbsp;&nbsp;&nbsp;for(k=0;k&lt;=j;k++) 
      &nbsp;&nbsp;&nbsp;&nbsp;//将在初始序列j位置前的,所有未处理的,且未入栈的元素入栈<BR>&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      if(Mark[k]==FALSE &amp;&amp; 
      IsinStack[k]==FALSE)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      {<BR>&nbsp;&nbsp; &nbsp;&nbsp;push(S,k); 
      <BR>&nbsp;&nbsp;IsinStack[k]=TRUE;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
      }<BR>&nbsp;&nbsp;&nbsp;&nbsp; 
      }<BR>&nbsp;&nbsp;&nbsp;&nbsp;if(GetTop(S)!=j) 
      //若已经有第j个元素在栈中(非栈顶),则出错无法规约!<BR>return 
      FALSE;<BR>&nbsp;&nbsp;&nbsp;&nbsp;pop(S); 
      //栈顶元素符合out[i],所以出栈<BR>&nbsp;&nbsp;&nbsp;&nbsp;Mark[j]=TRUE;<BR>&nbsp;&nbsp; 
      }<BR>&nbsp;&nbsp; return TRUE; //正确的规约完<BR>}
      <P>
      <P>
      <HR>
      弃我去者昨日之日不可留,<BR>乱我心者今日之日多烦忧。</TD></TR>
  <TR bgColor=#f7f7f7>
    <TD vAlign=top noWrap width="18%">Pollux<BR><IMG 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/user1.gif" 
      vspace=5><BR><B>中级站友</B><BR>积分:306<BR>发贴:79<BR>来自:上海<BR>资格:2001-02-06<BR></TD>
    <TD vAlign=top><IMG src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/icon1.gif" 
      align=absMiddle border=0>&nbsp;发表于 2001-10-04 <FONT 
      color=#000000>17:42:21</FONT>&nbsp;&nbsp;<A target=_blank 
      href="http://bbs.kaoyan.com/viewuser.asp?username=Pollux"><IMG 
      alt=按此观看Pollux的个人资料 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/profile.gif" align=absMiddle 
      border=0></A>&nbsp;<A href="mailto:pollux_bao@chinaren.com"><IMG 
      alt=按此发邮件给Pollux src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/email.gif" 
      align=absMiddle border=0></A>&nbsp;<A 
      href="http://search.tencent.com/cgi-bin/friend/user_show_info?ln=48097898"><IMG 
      alt="Pollux 的 oicq 是48097898,查看 48097898 的资料" 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/oicq.gif" align=absMiddle 
      border=0></A>&nbsp;<A 
      href="http://bbs.kaoyan.com/pm.asp?action=newpm&amp;recipient=Pollux&amp;subject=pollux%A3%A1%B3%F6%D5%BB%BD%F8%D5%BB%B5%C4%C5%C5%C1%D0%D0%F2%C1%D0%CE%CA%CC%E2%B5%C4%CB%E3%B7%A8%A3%A1%A3%A1%A3%A1"><IMG 
      alt=发送悄悄话给Pollux src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/pm.gif" 
      align=absMiddle border=0></A>&nbsp;<A target=_blank 
      href="http://bbs.kaoyan.com/search.asp?action=searchuser&amp;username=Pollux"><IMG 
      height=16 alt=搜索Pollux的所有帖子 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/find.gif" width=16 
      align=absMiddle border=0></A>&nbsp;<A 
      href="http://bbs.kaoyan.com/posting.asp?Forum=8&amp;Topic=428134&amp;TopicSubject=pollux%A3%A1%B3%F6%D5%BB%BD%F8%D5%BB%B5%C4%C5%C5%C1%D0%D0%F2%C1%D0%CE%CA%CC%E2%B5%C4%CB%E3%B7%A8%A3%A1%A3%A1%A3%A1&amp;action=editarchive"><IMG 
      alt=编辑/删除帖子 src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/edit.gif" 
      align=absMiddle border=0 ?></A>&nbsp;
      <HR>
      Perfect!
      <P></P></TD></TR>
  <TR bgColor=#dcdcdc>
    <TD vAlign=top noWrap width="18%">biwier<BR><IMG 
      src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/Imagef1.gif" 
      vspace=5><BR><B>开国大老</B><BR>积分:1694<BR>发贴:426<BR>来自:四川大学<BR>资格:2000-05-14<BR></TD>
    <TD vAlign=top><IMG src="pollux!出栈进栈的排列序列问题的算法!!! - 考研论坛.files/icon1.gif" 
      align=absMiddle border=0>&nbsp;发表于 2001-10-04 <FONT 
      color=#000000>22:04:21</FONT>&nbsp;&nbsp;<A target=_blank 
      href="http://bbs.kaoyan.com/viewuser.asp?username=biwier"><IMG 
      alt=按此观看biwier的个人资料 

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