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Tools / Data structures Interview questions

Mention a few use cases of a doubly linked list.

Any application where you want to traverse both sides from a specific point may leverage doubly-linked lists.

  • Doubly linked list is used in constructing MRU/LRU (Most/Least Recently Used) cache.
  • The browser cache that allows you to hit the BACK-FORWARD pages.
  • Undo-Redo functionality.
  • A music player which has next and prev buttons.

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