Define hash table?


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More Data Structures Interview Questions

Is binary tree a bst?

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Differentiate between hashmap and treemap.

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Which collection is used for sort?

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Define the term “percolate down”?

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Is treemap sorted?

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Which is better merge sort or quick sort?

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applications of stacks and their uses?

1 Answers   Mind Tree, Samsung,


Who invented merge sort?

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an array of size N in which every number is between 1 and N, determine if there are any duplicates in it. You are allowed to destroy the array if you like. [ I ended up giving about 4 or 5 different solutions for this, each supposedly better than the others ].

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Which is faster array or arraylist?

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Explain set interface?

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Describe the merge sort principle and what will be its time complexity?

1 Answers   Wipro,


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