Stacks And Queues

Queue Operations

Visualize FIFO behavior with enqueue, dequeue, and peek operations before moving into sliding window and scheduling patterns.

OperationO(1) per operation

FIFO: first in, first outoperation: enqueue

FrontRear

empty queue

Time

O(1) per enqueue

Space

O(n)

Step Note

Start with an empty queue. New values enter at the rear.

function enqueueAll(values: number[]) {
  const queue = []
  for (const value of values) {
    queue.push(value)
  }
  return queue
}