Interview Preparation Kit 32/69 challenges solved Warm-up Challenges Sock Merchant Counting Valleys Jumping on the Clouds Repeated String Arrays 2D Array - DS Arrays: Left Rotation New Year Chaos Minimum Swaps 2 Array Manipulation Dictionaries and Hashmaps Hash Tables: Ransom Note Two Strings Sherlock and Anagrams Count Triplets String Manipulation Alternating Characters Strings: Making Anagrams Sherlock and the Valid String Special String Again Sorting Bubble Sort Mark and Toys Comparator Fraudulent Activity Notifications Greedy Algorithms Minimum Absolute Difference in an Array Luck Balance Tress Tree: Height of a Binary Tree Binary Search Tree: Lowest Common Ancestor Linked Lists Insert a node at a specific position in a linked list Inserting a Node Into a Sorted Doubly Linked List Reverse a doubly linked list Find Merge Point of Two Lists Detect a Cycle Recursion and Backtracking Recursion: Fibonacci Numbers Miscellaneous Flipping bits