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        <title>Python 俱乐部 challenge</title>
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       <dc:date>2026-04-30T18:50:16+00:00</dc:date>
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        <dc:date>2011-01-27T05:54:39+00:00</dc:date>
        <title>Python Challenge 第零关: 2**38</title>
        <link>http://www.pythonclub.org/challenge/0?rev=1296107679&amp;do=diff</link>
        <description>Python Challenge 第零关: 2**38

题目

第一关的题目是一个图片：

[Python Challenge First Level]

给的提示是： 


Hint: try to change the URL address. 


图片的结果就是下一关的网址。

解答

其实第一关很简单，是一个算术题，用Python很容易就可以解决了。</description>
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        <dc:date>2017-03-31T05:28:03+00:00</dc:date>
        <title>Python Challenge 第一关：简单加密</title>
        <link>http://www.pythonclub.org/challenge/1?rev=1490938083&amp;do=diff</link>
        <description>Python Challenge 第一关：简单加密

题目

同样，题目给出了一幅图片和一段话，明显那一段话是经过加密的。

题目原文：&lt;http://www.pythonchallenge.com/pc/def/map.html&gt;

[ Python Challenge 第一关：简单加密 ]

文字说明：

g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp. bmgle gr gl zw fylb gq glcddgagclr ylb rfyr'q ufw rfgq rcvr gq qm jmle. sqgle qrpgle.kyicrpylq() gq pcamkkclbcb. lmu ynnjw ml rfc spj.</description>
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        <dc:date>2017-03-31T05:29:30+00:00</dc:date>
        <title>Python Challenge 第二关：OCR</title>
        <link>http://www.pythonclub.org/challenge/2?rev=1490938170&amp;do=diff</link>
        <description>Python Challenge 第二关：OCR

题目


&lt;!--
find rare characters in the mess below:
--&gt;


在下面的字符中找出出现最少的字符：


&lt;!--
%%$@_$^__#)^)&amp;!_+]!*@&amp;^}@[@%]()%+$&amp;[(_@%+%$*^@$^!+]!&amp;_#)_*}{}}!}_]$[%}@[{_@#_^{*
@##&amp;{#&amp;{&amp;)*%(]{{([*}@[@&amp;]+!!*{)!}{%+{))])[!^})+)$]#{*+^((@^@}$[**$&amp;^{$!@#$%)!@(&amp;
+^!{%_$&amp;@^!}$_${)$_#)!({@!)(^}!*^&amp;!$%_&amp;&amp;}&amp;_#&amp;@{)]{+)%*{&amp;*%*&amp;@%$+]!*__(#!*){%&amp;@++
!_)^$&amp;&amp;%#+)}!@!)&amp;^}**#!_$([$!$}#*^}$+&amp;#[{*{}{((#$]{[$[$$()_#}!@}^@_&amp;%^*!){*^^_$^
]@}#%[%!^[^_})+@&amp;}{@*!(@$%$^)}[_!}(*}#}#___}!](@_{{(*#%!%%+*)^+#%}$+_…</description>
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        <dc:date>2011-01-27T10:03:16+00:00</dc:date>
        <title>Python Challenge 第三关：equality</title>
        <link>http://www.pythonclub.org/challenge/3?rev=1296122596&amp;do=diff</link>
        <description>Python Challenge 第三关：equality

题目


One small letter, surrounded by EXACTLY three big bodyguards on each of its sides. 


原始字符串


&lt;!--
kAewtloYgcFQaJNhHVGxXDiQmzjfcpYbzxlWrVcqsmUbCunkfxZWDZjUZMiGqhRRiUvGmYmvnJIHEmbT
MUKLECKdCthezSYBpIElRnZugFAxDRtQPpyeCBgBfaRVvvguRXLvkAdLOeCKxsDUvBBCwdpMMWmuELeG
ENihrpCLhujoBqPRDPvfzcwadMMMbkmkzCCzoTPfbRlzBqMblmxTxNniNoCufprWXxgHZpldkoLCrHJq
vYuyJFCZtqXLhWiYzOXeglkzhVJIWmeUySGuFVmLTCyMshQtvZpPwuIbOHNoBauwvuJYCmqznOBgByPw
TDQheAbsaMLjTmAOKmNsLziVMenFxQdATQIjItwty…</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2011-01-28T02:55:18+00:00</dc:date>
        <title>Python Challenge 第四关：linkedlist</title>
        <link>http://www.pythonclub.org/challenge/4?rev=1296183318&amp;do=diff</link>
        <description>Python Challenge 第四关：linkedlist

题目


&lt;body&gt;
&lt;!-- urllib may help. DON'T TRY ALL NOTHINGS, since it will never 
end. 400 times is more than enough. --&gt;
&lt;center&gt;
&lt;a href=&quot;linkedlist.php?nothing=12345&quot;&gt;&lt;img src=&quot;chainsaw.jpg&quot; border=&quot;0&quot;/&gt;&lt;/a&gt;
&lt;br&gt;&lt;br&gt;&lt;font color=&quot;gold&quot;&gt;&lt;/center&gt;
Solutions to previous levels: &lt;a href=&quot;http://wiki.pythonchallenge.com/&quot;/&gt;Python Challenge wiki&lt;/a&gt;.
&lt;br&gt;&lt;br&gt;

IRC: irc.freenode.net #pythonchallenge
&lt;/body&gt;</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2011-01-28T06:20:49+00:00</dc:date>
        <title>Python Challenge第五题：pickle</title>
        <link>http://www.pythonclub.org/challenge/5?rev=1296195649&amp;do=diff</link>
        <description>Python Challenge第五题：pickle

题目

&lt;http://www.pythonchallenge.com/pc/def/peak.html&gt;


&lt;html&gt;
&lt;head&gt;
  &lt;title&gt;peak hell&lt;/title&gt;
  &lt;link rel=&quot;stylesheet&quot; type=&quot;text/css&quot; href=&quot;../style.css&quot;&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;center&gt;
&lt;img src=&quot;peakhell.jpg&quot;/&gt;
&lt;br&gt;&lt;font color=&quot;#c0c0ff&quot;&gt;
pronounce it
&lt;br&gt;
&lt;peakhell src=&quot;banner.p&quot;/&gt;
&lt;/body&gt;
&lt;/html&gt;

&lt;!-- peak hell sounds familiar ? --&gt;</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2011-01-28T06:32:02+00:00</dc:date>
        <title>Python Challenge第五题：channel</title>
        <link>http://www.pythonclub.org/challenge/6?rev=1296196322&amp;do=diff</link>
        <description>Python Challenge第五题：channel

题目


&lt;html&gt; &lt;!-- &lt;-- zip --&gt;
&lt;head&gt;
  &lt;title&gt;now there are pairs&lt;/title&gt;
  &lt;link rel=&quot;stylesheet&quot; type=&quot;text/css&quot; href=&quot;../style.css&quot;&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;center&gt;
&lt;img src=&quot;channel.jpg&quot;&gt;
&lt;br/&gt;
&lt;!-- The following has nothing to do with the riddle itself. I just
thought it would be the right point to offer you to donate to the
Python Challenge project. Any amount will be greatly appreciated.

-thesamet
--&gt;

&lt;form action=&quot;https://www.paypal.com/cgi-bin/webscr&quot; method=&quot;post&quot;…</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2011-01-28T06:24:46+00:00</dc:date>
        <title>Python Challenge</title>
        <link>http://www.pythonclub.org/challenge/start?rev=1296195886&amp;do=diff</link>
        <description>Python Challenge

	*  &lt;http://www.pythonchallenge.com/&gt;
	*  Python Challenge 第零关: 2**38
	*  Python Challenge 第一关：简单加密
	*  Python Challenge 第二关：OCR
	*  Python Challenge 第三关：equality
	*  Python Challenge 第四关：linkedlist
	*  Python Challenge第五题：pickle
	*  Python Challenge第五题：channel</description>
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