ALIEN: adjective ~ belonging to a foreign country or nation. noun ~ a foreigner, especially one who is not a naturalized citizen of the country where they are living. "an illegal alien" — Dictionary definitions from Oxford Languages | N Charles AsoOke

Deer on Instagram: "Syllabus: Level Hard 1. Arrays & Strings - Minimum Window Substring - Trapping Rain Water - Largest Rectangle in Histogram 2. Linked Lists - Merge k Sorted Lists - Reverse Nodes in k-Group - LFU Cache 3. Trees - Binary Tree Maximum Path Sum - Serialize and Deserialize Binary Tree - Vertical Order Traversal of a Binary Tree 4. Dynamic Programming - Edit Distance - Burst Balloons - Shortest Common Supersequence 5. Graphs - Alien Dictionary - Minimum Cost to Make at Least One Va

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