Queue: Introduction, Representation, Operations, Types of Queue, Applications of QueueStack: Introduction, Representation, Operations, Applications of StackPPT.pptx

Stack: Introduction, Representation, Operations, Applications of Stack

Queue: Introduction, Representation, Operations, Types of Queue, Applications of Queue

1. Queue and Stack Introduction, Representation, Operations, Types, and Applications

2. Queue - Introduction • A linear data structure that follows FIFO (First In First Out) principle. • Elements are added at the rear (enqueue) and removed from the front (dequeue).

3. Queue - Representation • Can be represented using Arrays. • Can also be implemented using Linked Lists.

4. Queue - Operations • Enqueue (insert element at the rear). • Dequeue (remove element from the front). • Peek/Front (get the front element without removing it). • isEmpty (check if queue is empty). • isFull (check if queue is full, in array representation).

5. Types of Queue • Simple Queue • Circular Queue • Priority Queue • Double-Ended Queue (Deque)

6. Applications of Queue • CPU scheduling • Disk scheduling • Data buffering (IO Buffers, Pipes, File IO) • Handling requests in a single shared resource (e.g., Printer)

7. Stack - Introduction • A linear data structure that follows LIFO (Last In First Out) principle. • Elements are added and removed from the same end (top).

8. Stack - Representation • Can be represented using Arrays. • Can also be implemented using Linked Lists.

9. Stack - Operations • Push (insert element at the top). • Pop (remove element from the top). • Peek/Top (view the top element without removing it). • isEmpty (check if stack is empty). • isFull (check if stack is full, in array representation).

10. Applications of Stack • Function call management (recursion). • Expression evaluation (postfix, prefix). • Syntax parsing (compilers). • Undo/Redo operations in text editors. • Backtracking algorithms (mazes, puzzles).