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 A linked list data structure can be doubly-linked as well as circular. In this article, a simple implementation of doubly linked list in C language is presented.

Tic-tac-toe is a popular two player game where each player tries to occupy an empty slot in a 3x3 board until one of them wins or the entire board is filled without any winner. The winner has to occupy three continuous cells in any direction, including the two diagonals. In this article, a version of the tic-tac-toe game is coded using Python and tkinter library.

A double-ended queue, pronounced deque in short is a LIFO queue where entries can be pushed and popped at both the ends of the queue, apart from push and pop an additional peek method is also discussed which fetches the value at either ends without removing it. In this article, one such queue is implemented using the C language.

hilite.me is a light weight website made by Alexander Kojevnikov , used to format source code from various programming languages into formatted HTML snippets which can be added to blogs, articles, and other web pages as needed. I personally use the API to format the source code snippets in this blog, and it has greatly reduced the time taken to complete an article, much thanks to the creator. In this article, an automated way of using the hilite.me API through Python and a simple HTML document is created with formatted code snippets.

Body Mass Index can be calculated using a simple formula kg/m 2 , where the weight is represented in kilograms (kg) and the height is represented in metres (m). The article presents code to create a simple GUI to calculate BMI based on user input values. The GUI is implemented using tkinter and tkinter.ttk libraries in Python language.

 A stack data structure is used on cases where the last-in-first-out (LIFO) is needed. For example, Undo is implemented using stack, ie., the most recently made change is undone first. The article explains a sample implementation of the stack using linked list in C.

Body Mass Index can be calculated using a simple formula kg/m2, where the weight is represented in kilograms (kg) and the height is represented in metres (m). The article discusses the various ways to calculate BMI using python programming language.