倪春恩的博客

                            
                            lc-234
                        
                                /**
Given the head of a singly linked list, return true if it is a palindrome or 
false otherwise. 

 Example 1: 

I
                            
                                2022-09-22
                            
                                    leetcode
                                
                            leetcode
                        
                            lc-226
                        
                                /**
Given the root of a binary tree, invert the tree, and return its root. 

 Example 1: 

Input: root = [4,2,7,1,3,
                            
                                2022-09-21
                            
                                    leetcode
                                
                            leetcode
                        
                            lc-221
                        
                                /**
Given an m x n binary matrix filled with 0's and 1's, find the largest square
containing only 1's and return its are
                            
                                2022-09-20
                            
                                    leetcode
                                
                            leetcode
                        
                            lc-215
                        
                                /**
Given an integer array nums and an integer k, return the kᵗʰ largest element in 
the array. 

 Note that it is the k
                            
                                2022-09-19
                            
                                    leetcode
                                
                            leetcode
                        
                            lc-208
                        
                                /**
A trie (pronounced as "try") or prefix tree is a tree data structure used to 
efficiently store and retrieve keys in
                            
                                2022-09-18
                            
                                    leetcode
                                
                            leetcode
                        
                            lc-207
                        
                                /**
 * There are a total of numCourses courses you have to take, labeled from 0 to
 * numCourses - 1. You are given an a
                            
                                2022-09-16
                            
                                    leetcode
                                
                            leetcode
                        
                            lc-206
                        
                                /**
Given the head of a singly linked list, reverse the list, and return the 
reversed list. 

 Example 1: 

Input: 
                            
                                2022-09-15
                            
                                    leetcode
                                
                            leetcode
                        
                            lc-200
                        
                                /**
Given an m x n 2D binary grid grid which represents a map of '1's (land) and '0
's (water), return the number of isl
                            
                                2022-09-14
                            
                                    leetcode
                                
                            leetcode
                        
                            lc-198
                        
                                /**
You are a professional robber planning to rob houses along a street. Each house 
has a certain amount of money stash
                            
                                2022-09-13
                            
                                    leetcode
                                
                            leetcode
                        
                            lc-169
                        
                                /**
Given an array nums of size n, return the majority element. 

 The majority element is the element that appears more
                            
                                2022-09-09
                            
                                    leetcode
                                
                            leetcode

            
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