juniorQueues
Explain the Front and Rear pointers.
Updated Apr 28, 2026
Short answer
Front points to the first element for removal; Rear points to the last element for addition.
Deep explanation
Queues are fundamental in managing sequential tasks. Front points to the first element for removal; Rear points to the last element for addition. 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?