Write an algorithm to check if there is a loop in a doubly linked list.

0 Answers   DELL,

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What is data structure? Explain.

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What is a list of lists?

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Why might quick sort might be better than merge sort?

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What is collections singletonmap?

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Let the G be a graph with 100 vertices numbered 1 to 100 Two vertices i and j are adjecnt if | i-j| =8 or | i-j| =12. The Number of connected components in G is ?

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What is a hashset?

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Explain about map and their types?

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Are the expressions arr and &arr same for an array of integers?

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Can we add duplicate keys in a hashmap? What will happen if we attempt to add duplicate values?

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How will you reverse Linked List.

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How does hashset work internally in java?

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