From: Lee Daekeun <zmsquf99@...>
Date: 2013-04-15T13:29:04+09:00
Subject: Re: simple lambda question

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Like this?

100.times.select{|a| a*a>1000}.map{|a| [a, (a*a).to_s]}.select{|a|
a[1][0]==a[1][1] and a[1][2]==a[1][3]}


2013/4/15 Hyun Oh K. <lists@ruby-forum.com>

> hello, I am newbie for ruby.
> these days i am forcusing learning about ruby languages.
> and I wonder and hope ruby will be simply answer below quiz just one
> line.
> below is python code.
>
> Python 2.3.4 (#1, Nov 10 2004, 13:08:40) [C] on sunos5
> Type "help", "copyright", "credits" or "license" for more information.
> >>>
> >>> a=0
> >>> while a*a < 10000:
> ... if a*a > 1000:
> ... s = str(a*a)
> ... if s[0]==s[1] and s[2]==s[3]:
> ... print a, a*a
> ... a = a+1
> ...
> 88 7744
> >>>
>
> quiz is about number.
> and ruby have lambda func. so I hope easly solution make.
> anybody wellknown ruby user, help and solve above quiz.
> Thank you~!
>
> --
> Posted via http://www.ruby-forum.com/.
>
>


-- 
Daekeun Lee

Department of Computer Science
Korea Advanced Institute of Science and Technology (KAIST)
+82 10-4012-4809
zmsquf99@gmail.com

http://www.facebook.com/daekeun.lee
@zmsquf99

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<div dir="ltr">Like this?<div><br></div><div>100.times.select{|a| a*a&gt;1000}.map{|a| [a, (a*a).to_s]}.select{|a| a[1][0]==a[1][1] and a[1][2]==a[1][3]}<br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">

2013/4/15 Hyun Oh K. <span dir="ltr">&lt;<a href="mailto:lists@ruby-forum.com" target="_blank">lists@ruby-forum.com</a>&gt;</span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

hello, I am newbie for ruby.<br>
these days i am forcusing learning about ruby languages.<br>
and I wonder and hope ruby will be simply answer below quiz just one<br>
line.<br>
below is python code.<br>
<br>
Python 2.3.4 (#1, Nov 10 2004, 13:08:40) [C] on sunos5<br>
Type &quot;help&quot;, &quot;copyright&quot;, &quot;credits&quot; or &quot;license&quot; for more information.<br>
&gt;&gt;&gt;<br>
&gt;&gt;&gt; a=0<br>
&gt;&gt;&gt; while a*a &lt; 10000:<br>
... if a*a &gt; 1000:<br>
... s = str(a*a)<br>
... if s[0]==s[1] and s[2]==s[3]:<br>
... print a, a*a<br>
... a = a+1<br>
...<br>
88 7744<br>
&gt;&gt;&gt;<br>
<br>
quiz is about number.<br>
and ruby have lambda func. so I hope easly solution make.<br>
anybody wellknown ruby user, help and solve above quiz.<br>
Thank you~!<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Posted via <a href="http://www.ruby-forum.com/" target="_blank">http://www.ruby-forum.com/</a>.<br>
<br>
</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br>Daekeun Lee<div><br><div>Department of Computer Science</div><div>Korea Advanced Institute of Science and Technology (KAIST)</div><div>+82 10-4012-4809</div>

<div><a href="mailto:zmsquf99@gmail.com" target="_blank">zmsquf99@gmail.com</a></div></div><div><br></div><div><a href="http://www.facebook.com/daekeun.lee" target="_blank">http://www.facebook.com/daekeun.lee</a></div><div>

@zmsquf99</div>
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