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Introduction-to-Stack-Instruction.pptxpptppt
- 1. Introduction to Stack Instruction An introduction to the fundamental concept of stack instruction in computer science and programming. by Suhas Kn
- 2. What is a stack? 1 Definition A stack is a linear data structure that follows the Last In, First Out (LIFO) principle. 2 Characteristics It consists of two main operations: push, which adds an item to the stack, and pop, which removes the top item from the stack. 3 Usage Commonly used in algorithms, recursive function calls, and expression evaluation.
- 3. How does a stack work? Data Movement Elements are added to the top of the stack and removed from the top in a last in, first out (LIFO) order. Overflow & Underflow Stack overflow occurs when new items cannot be pushed onto the stack. Stack underflow occurs when an attempt is made to pop an item from an empty stack.
- 4. Stack Operations: Push and Pop Push Adds an item to the top of the stack. Pop Removes the top item from the stack.
- 5. Stack Implementation using Arrays Advantages Simple and easy to implement. Disadvantages Fixed size, inefficient when the size needs to be changed frequently.
- 6. Stack Implementation using Linked Lists 1 Advantage Dynamic in size, can grow or shrink as needed. 2 Disadvantage Requires extra memory for pointers.
- 7. Applications of Stack Instruction 1 Backtracking Used in backtracking algorithms to efficiently explore possible solutions. 2 Expression Evaluation Helps in evaluating arithmetic expressions considering operator precedence and parentheses.
- 8. Advantages and Disadvantages of Using Stack Advantages Efficient memory utilization and quick data access. Disadvantages Limited functionality and potential for stack overflow.
- 9. Common Stack-Based Algorithms 1 Depth-First Search (DFS) An algorithm used to traverse or search trees or graphs. 2 Tower of Hanoi A puzzle that involves moving disks from one peg to another, following specific rules. 3 Parenthesis Matching Checks for the balanced use of parentheses in an expression.
- 10. Conclusion Importance Stacks are a foundational concept crucial for various programming paradigms and problem-solving approaches. Need for Understanding A clear understanding of stack instruction is essential for efficient algorithm design and implementation.