Phase 21 · Data Structures & Algorithms
TopicsQueue
Part of the Backend Developer Roadmap.
Summary
A First-In-First-Out (FIFO) data structure — the natural fit for breadth-first traversal, task scheduling, and processing items in arrival order.
How to Learn This
- 1Implement a queue from scratch and compare its operations to a stack's.
- 2Use a queue to implement breadth-first search (BFS) on a graph or tree.
- 3Learn about circular queues and deques (double-ended queues) as variants.
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