juniorQueues
What is a Queue?
Updated Apr 28, 2026
Short answer
A linear data structure that follows the FIFO (First In, First Out) principle.
Deep explanation
Queues are fundamental in managing sequential tasks. A linear data structure that follows the FIFO (First In, First Out) principle. They ensure fairness and order by processing items as they arrive.
Real-world example
Printer job management.
Common mistakes
- Popping from the end of an array instead of the front (behaving like a stack).
Follow-up questions
- What is FIFO?