**Coding Questions:**\n\n* Rotate a Linked List \n* Reverse a Linked List II\n* Trapping Rain Water\n* Next Greater Permutation\n* Matrix Rotation\n* Three Sum\n* Remove Loop From Linked List\n* Reverse a Linked List in k-groups\n* Largest Rectangle in Histogram\n* LRU Cache\n* Sliding Window Maximum\n* N Queens Problem\n* Kth Permutation Sequence\n* Generate Parentheses\n* Kth Largest Element From Data Stream\n* Best Time to Buy and Sell Stock III\n* Longest Palindrome in String\n* DFS of an Acyclic Graph\n* Invert Binary Tree\n* Two Sum in BST\n* Climbing Stairs\n* Longest Palindromic Substring (LPS)\n* Number of Islands

Coding Questions:\n\n Rotate a Linked List \n Reverse a Linked List II\n Trapping Rain Water\n Next Greater Permutation\n Matrix Rotation\n Three Sum\n Remove L