# LeetCode 234. Palindrome Linked List

Description https://leetcode.com/problems/palindrome-linked-list/ Given a singly linked list, determine if it is a palindrome. Example 1: Input: 1->2 Output: false Example…

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Description https://leetcode.com/problems/palindrome-linked-list/ Given a singly linked list, determine if it is a palindrome. Example 1: Input: 1->2 Output: false Example…

Description https://leetcode.com/problems/reverse-linked-list/ Reverse a singly linked list. Example: Input: 1->2->3->4->5->NULL Output: 5->4->3->2->1->NULL Follow up: A linked list can be reversed…

Description https://leetcode.com/problems/count-and-say/ The count-and-say sequence is the sequence of integers with the first five terms as following: 1. 1 2.…

Description https://leetcode.com/problems/valid-anagram/ Given two strings s and t , write a function to determine if t is an anagram of s. Example 1: Input: s = “anagram”,…

Description https://leetcode.com/problems/valid-palindrome/ Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. Note: For the…

Description https://leetcode.com/problems/single-number/ Given a non-empty array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have…

Total 49 Questions. Array Array type of questions were asked in interviews frequently. You will most likely encounter one during…

Description https://leetcode.com/problems/valid-sudoku/ Determine if a 9×9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: Each…

Description https://leetcode.com/problems/rotate-image/ You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Note: You have…

Description https://leetcode.com/problems/move-zeroes/ Given an array nums, write a function to move all 0‘s to the end of it while maintaining the relative…