linkedlist
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142. Linked List Cycle II
Given a linked list, return the node where the cycle begins. If there is no cycle, return null. Note…
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Summary of LinkedList problem-solving methods
Related LeetCode problems (easy): 2, 21, 82, 83, 86, 141, 160, 203, 206, 234, 237; Medium: Problem 142. Technique: Two pointers, one moving two steps, the other moving one step…
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LeetCode – 141. Linked List Cycle
Given a linked list, determine if it has a cycle in it. Follow up:Can you solve it without using ext…
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LeetCode – 160. Intersection of Two Linked Lists
Write a program to find the node at which the intersection of two singly linked lists begins. …
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LeetCode – 234. Palindrome Linked List
Given a singly linked list, determine if it is a palindrome. Follow up:Could you do it in O(n) time …
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LeetCode – 206. Reverse Linked List
Reverse a singly linked list. This question is very basic and requires thorough understanding. /** * Definition for singly-linked list. * public class…
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LeetCode – 2. Add Two Numbers
You are given two non-empty linked lists representing two non-negative integers. The digits are stor…
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LeetCode – 21. Merge Two Sorted Lists
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing t…
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237. Delete Node in a Linked List
Write a function to delete a node (except the tail) in a singly linked list, given only access to th…
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LeetCode – 86. Partition List
Given a linked list and a value x, partition it such that all nodes less than x come before nodes gr…
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LeetCode – 203. Remove Linked List Elements
Remove all elements from a linked list of integers that have value val. ExampleGiven: 1 –> …
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LeetCode – 82. Remove Duplicates from Sorted List II
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numb…
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LeetCode – 83. Remove Duplicates from Sorted List
Given a sorted linked list, delete all duplicates such that each element appear only once. For examp…
