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• Parsing of XML data has high CPU usage
• Please improve
• Snake / Nibbles clone in C and Ncurses
• List the files in a directory without the directory name or the extension
• Convert simple Javascript to jQuery plugin
• Simple Particle Engine for a shooter game
• Active Record getting unique records
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Pastable version of Erlang Riddle for Rubists

<pre class='prettyprint' language='ruby'>def prem(s,nx = []) return nx.join if s.empty? s.collect { |b| prem(s-[b],nx+[b]) }.flatten end puts prem('dor'.split(//)) output: dor dro odr ord rdo rod</pre> <a href="http://www.refactormycode.com/codes/916-erlang-riddle-for-rubists" style="color:#fff" title="As seen on RefactorMyCode.com"><img alt="Small_logo" src="http://www.refactormycode.com/images/small_logo.gif" style="border:0" /></a>