Data Structures | Misc | Question 2

Which data structure is used in redo-undo feature?
(A) Stack
(B) Queue
(C) Tree
(D) Graph


Answer: (A)

Explanation: Stack data structure is most suitable to implement redo-undo feature. This is because the stack is implemented with LIFO(last in first out) order which is equivalent to redo-undo feature i.e. the last re-do is undo first.

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