Leetcode BLIND-75 Solutions

Watch and track your favorite playlist.

Curated by: NeetCode (75 videos)

Currently Playing: Graph Valid Tree - Leetcode 261 - Python

🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/valid-tree 0:00 - Read the problem 2:45 - Drawing Explanation 10:06 - Coding Explanation leetcode 261 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #graph #tree #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission.

Tracks in this Playlist

Two Sum - Leetcode 1 - HashMap - Python
Sliding Window: Best Time to Buy and Sell Stock - Leetcode 121 - Python
Contains Duplicate - Leetcode 217 - Python
Product of Array Except Self - Leetcode 238 - Python
Maximum Subarray - Amazon Coding Interview Question - Leetcode 53 - Python
Maximum Product Subarray - Dynamic Programming - Leetcode 152
Find Minimum in Rotated Sorted Array - Binary Search - Leetcode 153 - Python
Search in rotated sorted array - Leetcode 33 - Python
3Sum - Leetcode 15 - Python
Container with Most Water - Leetcode 11 - Python
Number of 1 Bits - Leetcode 191 - Python
Counting Bits - Dynamic Programming - Leetcode 338 - Python
Missing Number - Blind 75 - Leetcode 268 - Python
Reverse Bits - Binary - Leetcode 190 - Python
Climbing Stairs - Dynamic Programming - Leetcode 70 - Python
Coin Change - Dynamic Programming Bottom Up - Leetcode 322
Longest Increasing Subsequence - Dynamic Programming - Leetcode 300
Longest Common Subsequence - Dynamic Programming - Leetcode 1143
Word Break - Dynamic Programming - Leetcode 139 - Python
Combination Sum - Backtracking - Leetcode 39 - Python
House Robber - Leetcode 198 - Python Dynamic Programming
House Robber II - Dynamic Programming - Leetcode 213
Decode Ways - Dynamic Programming - Leetcode 91 - Python
Unique Paths - Dynamic Programming - Leetcode 62
Jump Game - Greedy - Leetcode 55
Clone Graph - Depth First Search - Leetcode 133
Course Schedule - Graph Adjacency List - Leetcode 207
Pacific Atlantic Water Flow - Leetcode 417 - Python
NUMBER OF ISLANDS - Leetcode 200 - Python
Leetcode 128 - LONGEST CONSECUTIVE SEQUENCE
Alien Dictionary - Topological Sort - Leetcode 269 - Python
Graph Valid Tree - Leetcode 261 - Python
Number of Connected Components in an Undirected Graph - Union Find - Leetcode 323 - Python
Insert Interval - Leetcode 57 - Python
Merge Intervals - Sorting - Leetcode 56
Non-Overlapping Intervals - Leetcode 435 - Python
Meeting Rooms - Leetcode 252 - Python
Meeting Rooms II - Leetcode 253 - Python
Reverse Linked List - Iterative AND Recursive - Leetcode 206 - Python
Linked List Cycle - Floyd's Tortoise and Hare - Leetcode 141 - Python
Merge Two Sorted Lists - Leetcode 21 - Python
Merge K Sorted Lists - Leetcode 23 - Python
Remove Nth Node from End of List - Oracle Interview Question - Leetcode 19
Linkedin Interview Question - Reorder List - Leetcode 143 - Python
Set Matrix Zeroes - In-place - Leetcode 73
Spiral Matrix - Microsoft Interview Question - Leetcode 54
Rotate Image - Matrix - Leetcode 48
Word Search - Backtracking - Leetcode 79 - Python
Longest Substring Without Repeating Characters - Leetcode 3 - Python
Longest Repeating Character Replacement - Leetcode 424 - Python
Minimum Window Substring - Airbnb Interview Question - Leetcode 76
Group Anagrams - Categorize Strings by Count - Leetcode 49
Valid Parentheses - Stack - Leetcode 20 - Python
Valid Palindrome - Leetcode 125 - Python
Longest Palindromic Substring - Python - Leetcode 5
Palindromic Substrings - Leetcode 647 - Python
Encode and Decode Strings - Leetcode 271 - Python
Maximum Depth of Binary Tree - 3 Solutions - Leetcode 104 - Python
Same Tree - Leetcode 100 - Python
Invert Binary Tree - Depth First Search - Leetcode 226
Binary Tree Maximum Path Sum - DFS - Leetcode 124 - Python
Binary Tree Level Order Traversal - BFS - Leetcode 102
Serialize and Deserialize Binary Tree - Preorder Traversal - Leetcode 297 - Python
Subtree of Another Tree - Leetcode 572 - Python
Construct Binary Tree from Inorder and Preorder Traversal - Leetcode 105 - Python
Validate Binary Search Tree - Depth First Search - Leetcode 98
Kth Smallest Element in a BST - Leetcode 230 - Python
Lowest Common Ancestor of a Binary Search Tree - Leetcode 235 - Python
Implement Trie (Prefix Tree) - Leetcode 208
Design Add and Search Words Data Structure - Leetcode 211 - Python
Word Search II - Backtracking Trie - Leetcode 212 - Python
Top K Frequent Elements - Bucket Sort - Leetcode 347 - Python
Find Median from Data Stream - Heap & Priority Queue - Leetcode 295
Valid Anagram - Leetcode 242 - Python
Sum of Two Integers - Leetcode 371 - Java