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🏝 Number of Islands
🌴Implement Trie (Prefix Tree) with insert, search, and startsWith methods
🔁 Rotate Image
📕 Word Break
🐶 Maximum Product Subarray
🦌 Number of Connected Components in an Undirected Graph
☘️ Construct a Quad Tree
🏍 Unique Paths
🎄 Invert/Flip a binary tree
🧳 Meeting Rooms
🏃🏿♂️ Longest Substring without Repeating characters
🍩 Climbing Stairs
🌱 Contains Duplicate
🥓 Merge Two Sorted Lists
🗓 Course Schedule
🌳 Binary Tree Max Path Sum
↩️ Reverse a Linked List
🐑 Clone Graph
🐽 Reorder List
🔍 Word Search
🕶 Decode Ways
🐛 Longest Consecutive Sequence
🥨 Linked List Cycle
🍬 Spiral Matrix
🌷 Pacific Atlantic Water Flow
🌿 Serialize and Deserialize Binary Tree
🦔 Combination Sum
🤑 Coin Change 2
⛺️ Meeting Rooms 2
📲 Top K Frequent Elements
🎆 Subtree of Another Tree
🙉 House Robber II
🥣 Set Matrix Zeroes