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WithoutBook LIVE Mock Interviews Linked List Related interview subjects: 74

Interview Questions and Answers

Know the top Linked List interview questions and answers for freshers and experienced candidates to prepare for job interviews.

Total 15 questions Interview Questions and Answers

The Best LIVE Mock Interview - You should go through before interview

Know the top Linked List interview questions and answers for freshers and experienced candidates to prepare for job interviews.

Interview Questions and Answers

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Ques 1

Find the kth to last element of a singly linked list.

Use two pointers; one moves k nodes into the list, and then both iterate until the second one reaches the end.

Example:

Input: 1 -> 2 -> 3 -> 4 -> 5, k = 2
Output: 4

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Ques 2

Remove duplicates from an unsorted linked list.

Use a hash set to keep track of unique elements while traversing the list.

Example:

Input: 1 -> 2 -> 2 -> 3 -> 4 -> 4 -> 5
Output: 1 -> 2 -> 3 -> 4 -> 5

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Ques 3

Write a function to find the middle element of a linked list.

Use two pointers; one moves one step at a time, and the other moves two steps at a time.

Example:

Input: 1 -> 2 -> 3 -> 4 -> 5
Output: 3

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