Introduction: It is a clever idea for beginners to start with the basics of data structures, and then work their way up to more complex ones. This introduction will cover what a data structure is, what they are used for, and how they are implemented in programming. What do you learn? Definition of data structures Array definition Array size Linked list definition Linked list size Stack definition Stack size Queue definition Queue size What are Data Structures? Data structures are one of the most important concepts in computer science. They can be used to represent any kind of entity which needs to be stored or processed by a computer. Data structures allow programmers to think about how data can be stored and manipulated without having to worry about how it will happen at runtime. The most common data structures which programmers deal with are lists, arrays, and trees. These structures can be used to represent many entities such as mathematical expressions or sets. Each structure ha