Why is hashmap faster than arraylist?


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More Data Structures Interview Questions

How does threaded binary tree represented in data structure?

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What are linked lists most commonly used for?

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Given an unsorted linked list, and without using a temporary buffer, write a method that will delete any duplicates from the linked list?

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What is the minimization factor and time complexity of b-tree?

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Differentiate between collection and collections.

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What is the minimum number of queues needed when implementing a priority queue?

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What do you mean by balance factor of a node in avl tree?

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What is the use of data structure?

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Define a linear and non linear data structure.

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Why do we need algorithm?

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How does a selection sort work?

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an array t[100] which contains numbers between 1..99. Return the duplicated value. Try both O(n) and O(n-square).

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