Fundamental Data Structures: Stacks, Queues, and Operations Explained
Explore the concepts of stacks and queues in data structures through detailed explanations and visuals. Understand the principles of Last-In-First-Out (LIFO) and First-In-First-Out (FIFO) along with operations like push, pop, read, and write. Learn how these data structures are essential in programming and problem-solving. Enhance your understanding with examples provided by Ali Akbar Mohammadi.
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Presentation Transcript
LIFO Ali Akbar Mohammadi 2
Stacks A stack is a collection of objects that are inserted and removed according to the last-in, first-out (LIFO) principle. A user may insert objects into a stack at any time, but may only access or remove the most recently inserted object that remains (at the so-called top of the stack) Ali Akbar Mohammadi 3
Practice First Q Last Method Return Value [] Ali Akbar Mohammadi 4
Functions for stack: push() : insert a data into stack pop(): remove a data from stack show(): show the last data that inserted into stack without removing it. Ali Akbar Mohammadi 5
FIFO Ali Akbar Mohammadi 6
Queues Another fundamental data structure is the queue. It is a close cousin of the stack, but a queue is a collection of objects that are inserted and removed according to the first-in, first-out (FIFO) principle. That is, elements can be inserted at any time, but only the element that has been in the queue the longest can be next removed. Ali Akbar Mohammadi 7
Functions for queue: Read (): Write(): Ali Akbar Mohammadi 8
Practice First Q Last Method Return Value Ali Akbar Mohammadi 9
