There are several ways I’ve seen over the years of interchanging 2 variables. I’ll show you here how you can do it with bitwise operations. This method is most efficient when used in combination with assembler. In C++ it is looked at more like a curiosity than a real method by most. However if you would want to make your C++ code harder to read, then this can be helpful. ...

You probably already know how to do standard graphs in Excel. Sometimes, you'll need to take it up another level and do logarithmical or semi-logarithmical graphs. Properly made graphs can give a concise and compact form of representation, while graphs made poorly can be misleading and very confusing. ...

As our life gets more and more complicated, we are much more susceptible to mistakes. How many times did you delete or modify a file before realizing the old version was much better? Things like this can be avoided by simply making backups of your files.. and why not do it automatically? ...

The initial distributed file was AOL-data.tgz (439MB). Inside it contains a simple readme file and 10 .gz archives, each containing a CSV collection. With a packed size of about 45MB each, when extracted they reveal the true treasure: a nice collection of actual user searches (each file at about 200MB). ...

Are you tired of people using your server as a storage space for their pictures on different websites? Use this option to block them from "leeching" your files. ...