Linked List Interview Questions

Master 18 linked list problems frequently asked in technical interviews. These questions test your understanding of linked listconcepts and are essential for coding interview success.

Total Problems

Easy

Medium

Hard

Max Stack

Asked at LinkedIn

Linked List Stack Design Doubly-Linked List Ordered Set

Rank

#146MediumFrequency: 100%

LRU Cache

Asked at Flipkart

Hash Table Linked List Design Doubly-Linked List

Rank

#460HardFrequency: 88%

LFU Cache

Asked at Salesforce

Hash Table Linked List Design Doubly-Linked List

Rank

#206EasyFrequency: 87%

Reverse Linked List

Asked at Oracle

Linked List Recursion

Rank

#23HardFrequency: 72%

Merge k Sorted Lists

Asked at Meta

Linked List Divide and Conquer Heap (Priority Queue)Merge Sort

Rank

#2MediumFrequency: 71%

Add Two Numbers

Asked at Google

Linked List Math Recursion

Rank

#138MediumFrequency: 67%

Copy List with Random Pointer

Asked at Amazon

Hash Table Linked List

Rank

#758MediumFrequency: 64%

Convert Binary Search Tree to Sorted Doubly Linked List

Asked at Meta

Linked List Stack Tree Depth-First Search Binary Search Tree Binary Tree Doubly-Linked List

Rank

#432HardFrequency: 63%

All O`one Data Structure

Asked at LinkedIn

Hash Table Linked List Design Doubly-Linked List

Rank

#850MediumFrequency: 57%

Insert into a Sorted Circular Linked List

Asked at Meta

Linked List

#10

Rank

#114MediumFrequency: 53%

Flatten Binary Tree to Linked List

Asked at Google

Linked List Stack Tree Depth-First Search Binary Tree

#11

Rank

#141EasyFrequency: 53%

Linked List Cycle

Asked at Google

Hash Table Linked List Two Pointers

#12

Rank

#116MediumFrequency: 51%

Populating Next Right Pointers in Each Node

Asked at Meta

Linked List Tree Depth-First Search Breadth-First Search Binary Tree

#13

Rank

#21EasyFrequency: 48%

Merge Two Sorted Lists

Asked at Google

Linked List Recursion

#14

Rank

#234EasyFrequency: 48%

Palindrome Linked List

Asked at Google

Linked List Two Pointers Stack Recursion

#15

Rank

#19MediumFrequency: 43%

Remove Nth Node From End of List

Asked at Meta

Linked List Two Pointers

#16

Rank

#109MediumFrequency: 37%

Convert Sorted List to Binary Search Tree

Asked at Meta

Linked List Divide and Conquer Tree Binary Search Tree Binary Tree

#17

Rank

#25HardFrequency: 36%

Reverse Nodes in k-Group

Asked at Amazon

Linked List Recursion

#18

Rank

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Linked List Interview Questions

Related Topics

Max Stack

LRU Cache

LFU Cache

Reverse Linked List

Merge k Sorted Lists

Add Two Numbers

Copy List with Random Pointer

Convert Binary Search Tree to Sorted Doubly Linked List

All O`one Data Structure

Insert into a Sorted Circular Linked List

Flatten Binary Tree to Linked List

Linked List Cycle

Populating Next Right Pointers in Each Node

Merge Two Sorted Lists

Palindrome Linked List

Remove Nth Node From End of List

Convert Sorted List to Binary Search Tree

Reverse Nodes in k-Group

Master Linked List in Real Interviews