What is the difference between a stack and queue?

  • Queues process value types by a top-down hierarchy – first in, first out (FIFO). Stacks follow this principle and insert items from the lower end while deleting ones from the top – last in, first-out (LIFO).
  • Queues process value types by a top-down hierarchy-last in, first-out (LIFO). Stacks follow this principle and insert items from the lower end while deleting ones from the top-first in, first-out (FIFO).
  • Stacks process value types by a top-down hierarchy – last in, first-out (LIFO). Queues follow this principle and insert items from the lower end while deleting ones from the top – first in, first-out (FIFO)
  • Stacks process value types by a top-down hierarchy-first in, first out (FIFO). Queues follow this principle and insert items from the lower end while deleting ones from the top-last in, first-out (LIFO).
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