Kit Library / Computer Science / Data Structures
Quick KitShared by a Veda learner · Generated with Veda AI
Veda Bites are swipeable micro-lessons — each one teaches exactly one idea. Here's a taste from this kit; the app has the full deck.
Last in, first out — the core rule.
A stack is a linear data structure that follows the LIFO (Last In, First Out) principle. The last element added is the first one removed. Think of a stack of plates: you add and remove from the top only.
↳ A stack is a LIFO structure where all operations happen at the top.
The five essential stack operations.
↳ Stacks support push, pop, peek, isEmpty, and size operations.
Plates: you can only touch the top.
Imagine a spring-loaded plate dispenser in a cafeteria. You place plates on top (push) and take the top plate off (pop). You never access plates in the middle. This is exactly how a stack works.
↳ The plate dispenser perfectly models stack LIFO behavior.
A stack is a linear data structure that follows the Last In, First Out (LIFO) principle, where elements are added and removed from the top. Core operations include push, pop, and peek, all of which run in constant time....
~8 min · full explanation, examples & memory tricks in the app
19 questions laddered from warm-up to topper-level, each with an explanation. A taste:
Which principle does a stack follow?
BeginnerLast In, First Out (LIFO)
A stack is a LIFO data structure, meaning the last element added is the first to be removed.
Which operation adds an element to the top of a stack?
Beginnerpush
The push operation inserts an element onto the top of the stack.
Which operation removes the top element from a stack?
Beginnerpop
The pop operation removes and returns the top element of the stack.
What does the 'peek' operation do on a stack?
BeginnerReturns the top element without removing it
Peek (or top) returns the top element without modifying the stack.
17 flashcards in this kit — the app reviews them with spaced repetition so the right card returns on the right day.
Every game is built from this kit's own content — scores feed your mastery, so playing counts as studying.
The full Veda Bites deck, complete notes, spaced-repetition flashcards, leveled MCQs, tests and games for this kit — plus Daily Facts and the Arena, every day.
