Examples from "A Little C Primer" book. The book can be found at http://en.wikibooks.org/wiki/A_Little_C_Primer.
It is an interesting feeling to read the book as if you never knew anything about programming, write the exmaple programs letter by letter using a simple text editor, compile and run them. What a simple and relaxing fun :)!
As a side effect, at the end of the book I will know a lot more about programing and may even be able to write programs using the most powerfull language.