After a several days of struggling with WordPress themes and plugins, we can now proudly present a renewed and optimized web site of Rationalplanet.com!
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Xdebug in Netbeans for a VirtualBox Guest Host

Setting up the working xdebug on a virtual guest is the same as setting up the debug for the remote server.
Setting Up MEAN.io on Fedora with Apache

The MEAN.io stack is a wonderful application framework built on top of node.js, mongodb and Angular.JS. The installation of the whole thing is quite non-trivial, however.
Peaks Demo Task at Codility.com

Lesson 8 – Prime and composite numbers – Peaks demo task solution code written in php. Gives 100/100 score at the time of publishing.
CountFactors Demo Task at Codility.com

Lesson 8 – Prime and composite numbers – CountFactors demo task solution code written in php. Gives 100/100 score at the time of publishing.
MinPerimeterRectangle Demo Task at Codility.com

Lesson 8 – Prime and composite numbers – MinPerimeterRectangle demo task solution code written in php. Gives 100/100 score at the time of publishing.
MaxSliceSum Demo Task at Codility.com

Lesson 7 – Maximum slice problem – MaxSliceSum demo task solution code written in php. Gives 100/100 score at the time of publishing.