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Linked List Problems

66 Linked List LeetCode problems · Solve with AI-powered hints & step-by-step explanations.

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2 Add Two Numbers Medium 19 Remove Nth Node From End of List Medium 21 Merge Two Sorted Lists Easy 23 Merge k Sorted Lists Hard 141 Linked List Cycle Easy 143 Reorder List Medium 146 LRU Cache Medium 206 Reverse Linked List Easy

All Linked List problems

2 Add Two Numbers Medium 19 Remove Nth Node From End of List Medium 21 Merge Two Sorted Lists Easy 23 Merge k Sorted Lists Hard 24 Swap Nodes in Pairs Medium 25 Reverse Nodes in k-Group Hard 61 Rotate List Medium 82 Remove Duplicates from Sorted List II Medium 83 Remove Duplicates from Sorted List Easy 86 Partition List Medium 92 Reverse Linked List II Medium 109 Convert Sorted List to Binary Search Tree Medium 114 Flatten Binary Tree to Linked List Medium 116 Populating Next Right Pointers in Each Node Medium 117 Populating Next Right Pointers in Each Node II Medium 138 Copy List with Random Pointer Medium 141 Linked List Cycle Easy 142 Linked List Cycle II Medium 143 Reorder List Medium 146 LRU Cache Medium 147 Insertion Sort List Medium 148 Sort List Medium 160 Intersection of Two Linked Lists Easy 203 Remove Linked List Elements Easy 206 Reverse Linked List Easy 234 Palindrome Linked List Easy 237 Delete Node in a Linked List Medium 328 Odd Even Linked List Medium 355 Design Twitter Medium 382 Linked List Random Node Medium 430 Flatten a Multilevel Doubly Linked List Medium 432 All O`one Data Structure Hard 445 Add Two Numbers II Medium 460 LFU Cache Hard 622 Design Circular Queue Medium 641 Design Circular Deque Medium 705 Design HashSet Easy 706 Design HashMap Easy 707 Design Linked List Medium 725 Split Linked List in Parts Medium 817 Linked List Components Medium 876 Middle of the Linked List Easy 1019 Next Greater Node In Linked List Medium 1171 Remove Zero Sum Consecutive Nodes from Linked List Medium 1206 Design Skiplist Hard 1290 Convert Binary Number in a Linked List to Integer Easy 1367 Linked List in Binary Tree Medium 1472 Design Browser History Medium 1669 Merge In Between Linked Lists Medium 1670 Design Front Middle Back Queue Medium 1721 Swapping Nodes in a Linked List Medium 1797 Design Authentication Manager Medium 2058 Find the Minimum and Maximum Number of Nodes Between Critical Points Medium 2074 Reverse Nodes in Even Length Groups Medium 2095 Delete the Middle Node of a Linked List Medium 2130 Maximum Twin Sum of a Linked List Medium 2181 Merge Nodes in Between Zeros Medium 2289 Steps to Make Array Non-decreasing Medium 2296 Design a Text Editor Hard 2326 Spiral Matrix IV Medium 2487 Remove Nodes From Linked List Medium 2807 Insert Greatest Common Divisors in Linked List Medium 2816 Double a Number Represented as a Linked List Medium 3217 Delete Nodes From Linked List Present in Array Medium 3507 Minimum Pair Removal to Sort Array I Easy 3510 Minimum Pair Removal to Sort Array II Hard

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