As previously promised, this will be the last Tech Tuesday post on Data Structures for a while and starting next week we will return to other aspects of programming. Much of what we have seen in the previous data structure posts are structures that are built into the respective programming languages, such as structs in C, associative arrays in PHP, JSON in Javascript, objects in PHP and multi-dimensional arrays in C. Today we will take a look at rolling our own data structures that let us set...