Programming Concepts Beginner

What is Data Structure?

A way of organizing and storing data in a computer so it can be accessed and modified efficiently.

Data structures define how data is stored and accessed. Arrays provide indexed access. Linked lists allow efficient insertions. Hash tables enable O(1) lookups. Trees organize hierarchical data. Graphs model complex relationships.

Choosing the right data structure dramatically affects performance. Stacks (LIFO) and queues (FIFO) manage ordered operations. Heaps efficiently find min/max values. Tries optimize string searching.

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Related Terms

Two memory regions: the stack stores function call data with automatic cleanup, while the heap stores dynamically allocated objects.

Functional Programming

A programming paradigm that treats computation as the evaluation of mathematical functions, avoiding state changes and mutable data.

Object-Oriented Programming (OOP)

A programming paradigm that organizes software design around objects containing data and behavior.

A data structure that follows Last-In-First-Out (LIFO) ordering, where elements are added and removed from the same end (top).

A data structure that follows First-In-First-Out (FIFO) ordering, where elements are added at the rear and removed from the front.

Version Control

A system that records changes to files over time, allowing you to recall specific versions, collaborate, and track history.

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