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Computer Science

355What is an Abstract Data Type (ADT)?
356The Stack ADT Definition
357Push Operation
358Pop Operation
359Peek (or Top) Operation
360IsEmpty Operation
361Size Operation
362Array-Based Stack Implementation
363Linked List-Based Stack Implementation
364Stack Implementation Tradeoffs
365Expression Evaluation: Infix, Prefix, Postfix
366Infix to Postfix Conversion
367Evaluating Postfix Expressions
368Balanced Parentheses Checking
369Function Call Stack and Recursion
370Backtracking with Stacks
371Undo/Redo Functionality
372Browser History Navigation
373Depth-First Search with Explicit Stack
374Stack-Based Memory Management
375Queue ADT Definition and FIFO Principle
376Essential Queue Operations
377Queue Interface and Specification
378Array-Based Queue Implementation
379Circular Queue Concept
380Circular Queue Implementation Details
381Dynamic Array-Based Queue
382Linked List-Based Queue Implementation
383Queue Operation Complexity Analysis
384Queue Size and IsEmpty Operations
385Queue Implementation Tradeoffs
386Queue Invariants and Correctness
387Circular Queues
388Circular Queue Operations
389Priority Queues Introduction
390Priority Queue Array Implementation
391Double-Ended Queue (Deque) Introduction
392Deque Array Implementation
393Deque Linked List Implementation
394Queue Variant Applications
395Deque: Double-Ended Queue Fundamentals
396Deque ADT Operations
397Array-Based Deque Implementation
398Linked List Deque Implementation
399Deque vs Stack vs Queue
400Deque Time Complexity Analysis
401Sliding Window Problems with Deques
402Deque for Palindrome Checking
403Work-Stealing with Deques
404Deque Applications and Use Cases

Computer Science

355What is an Abstract Data Type (ADT)?
356The Stack ADT Definition
357Push Operation
358Pop Operation
359Peek (or Top) Operation
360IsEmpty Operation
361Size Operation
362Array-Based Stack Implementation
363Linked List-Based Stack Implementation
364Stack Implementation Tradeoffs
365Expression Evaluation: Infix, Prefix, Postfix
366Infix to Postfix Conversion
367Evaluating Postfix Expressions
368Balanced Parentheses Checking
369Function Call Stack and Recursion
370Backtracking with Stacks
371Undo/Redo Functionality
372Browser History Navigation
373Depth-First Search with Explicit Stack
374Stack-Based Memory Management
375Queue ADT Definition and FIFO Principle
376Essential Queue Operations
377Queue Interface and Specification
378Array-Based Queue Implementation
379Circular Queue Concept
380Circular Queue Implementation Details
381Dynamic Array-Based Queue
382Linked List-Based Queue Implementation
383Queue Operation Complexity Analysis
384Queue Size and IsEmpty Operations
385Queue Implementation Tradeoffs
386Queue Invariants and Correctness
387Circular Queues
388Circular Queue Operations
389Priority Queues Introduction
390Priority Queue Array Implementation
391Double-Ended Queue (Deque) Introduction
392Deque Array Implementation
393Deque Linked List Implementation
394Queue Variant Applications
395Deque: Double-Ended Queue Fundamentals
396Deque ADT Operations
397Array-Based Deque Implementation
398Linked List Deque Implementation
399Deque vs Stack vs Queue
400Deque Time Complexity Analysis
401Sliding Window Problems with Deques
402Deque for Palindrome Checking
403Work-Stealing with Deques
404Deque Applications and Use Cases

← Computer Science

Lesson 359 of 2,872·9. Stacks and QueuesPro lesson

Peek (or Top) Operation

Learn how to view the top element without removing it and when this operation is useful.

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