Tag Archives: data

Queue Data Structure

I have just published a program that shows examples of a queue data structure.

This page shows examples of the Queue Data Structure.

Queues operate under a property of First in First Out (FIFO), which is similar to waiting in a line.

The two main operations in a queue are to Enqueue (or insert an element) and Dequeue (or remove an element). Just like waiting in line, when an element is enqueued it is inserted at the back of the queue. And also like waiting in line, when an element is removed from a queue, it is removed from the front of the line.

Stack Data Structure

I have just published a program that shows examples of a stack data structure.

Stacks are an elementary Data Structure where all interaction with the data is done through the looking at the first element.

There are two main operations on Stacks, Push and Pop.

The push operation is used to insert an item into the stack. The name push comes from the fact that when an item is inserted into the stack it is put into the first element in the stack, so we think of it as lying on top of the stack.

Likewise, the pop operation is used to remove an item from the stack. Items are removed from the top of the stack first.

Hello, World!

The ideas for this site have been bouncing around inside my head and on my computer for years, and this site is an acknowledgement that it was time to finally act on these ideas.

The site will feature a collection of scripts I have written to help illustrate different concepts. A large part of this will be a flash cards section which will provide an avenue to study or to refresh one’s memory on various subjects. I recognize, though, that all subjects are not easily understood through flash cards and so I also have an examples section where various algorithms are implemented on example problems (problem sets) to provide users with a more hands on experience.

The site will be updated regularly, generally with either new subject areas added to the flash cards database, new scripts added to the examples. I leave open the possibility, though, of entirely new sections being introduced as ideas continue to develop and the site continues to grow.

There are several areas that I would like to take the site, but with each area I have the problems of (a) showing the concept, (b) visualizing the concept, c) showing the intuition behind the concept. Sometimes, I will think of (what I call) more clever ways to teach or learn an idea I’ve already discussed. This may lead to more than one page on the same concept. I encourage you to try all such pages to see if you like any of them.

I hope you enjoy.