Collections · interview question
Why can using an ArrayList over a LinkedList when frequently inserting elements at the beginning of the list become a problem in practice?
Multiple choiceMediumchapter-4-curatedpremiumcollectionslist-interface-and-arraylist
Answer and explanation
Correct answer
D. Higher time complexity for insertions
Why
Inserting elements at the beginning of an ArrayList requires shifting all existing elements, which results in O(n) time complexity, whereas LinkedList can insert in O(1).
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