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Data Structures | Stack | Question 3

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Which of the following is true about linked list implementation of stack? (A) In push operation, if new nodes are inserted at the beginning of linked list, then in pop operation, nodes must be removed from end. (B) In push operation, if new nodes are inserted at the end, then in pop operation, nodes must be removed from the beginning. (C) Both of the above (D) None of the above

Answer: (D)

Explanation: To keep the Last In First Out order, a stack can be implemented using linked list in two ways: a) In push operation, if new nodes are inserted at the beginning of linked list, then in pop operation, nodes must be removed from beginning. b) In push operation, if new nodes are inserted at the end of linked list, then in pop operation, nodes must be removed from end.

Last Updated : 05 Feb, 2013
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