What is the minimum number of nodes that a binary tree can have?


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More Data Structures Interview Questions

Define an algorithm.

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Explain how to find 3rd element from end in a linked list in one pass?

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Give a good data structure for having n queues ( n not fixed) in a finite memory segment. You can have some data-structure separate for each queue. Try to use at least 90% of the memory space.

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Can we use Generics with the array?

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Tell me what should be done in the base case for this recursive problem?

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Differentiate between singly and doubly linked lists?

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What is doubly linked list in data structure?

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What is the meaning of arraylist?

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What is stable sort?

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Is hashmap synchronized?

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Now you are given an array of a characters (both ASCII and Kanji) and, an index into the array. The index points to the start of some character. Now you need to write a function to do a backspace (i.e. delete the character before the given index).

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Can you tell me the differences between Array and ArrayList?

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