Data Structures Subdomain Challenge Points Solution Arrays Arrays - DS 10 Solution.java Arrays 2D Array - DS 15 Solution.java Arrays Dynamic Array 15 Solution.java Arrays Left Rotation 20 Solution.java Arrays Sparse Arrays 25 Solution.java Arrays Algorithmic Crush 60 Solution.java Stacks Maximum Element 20 Solution.java Stacks Balanced Brackets 25 Solution.java Trees Tree: Preorder Traversal 10 Solution.java Trees Tree: Inorder Traversal 10 Solution.java Trees Tree: Postorder Traversal 10 Solution.java Trees Tree: Height of a Binary Tree 10 Solution.java Trees Tree: Level Order Traversal 20 Solution.java Trees Tree: Huffman Decoding 20 Solution.java Trees Binary Search Tree: Insertion 20 Solution.java Trees Binary Search Tree: Lowest Common Ancestor 30 Solution.java Trees Is This a Binary Search Tree? 30 Solution.java Trees Swap Nodes [Algo] 40 Solution.java Trees Square-Ten Tree 60 Solution.java Linked List Print the Elements of a Linked List 5 Solution.java Linked List Insert a node at the head of a linked list 5 Solution.java Linked List Insert a Node at the Tail of a Linked List 5 Solution.java Linked List Insert a node at a specific position in a linked list 5 Solution.java Linked List Delete a Node 5 Solution.java Linked List Print in Reverse 5 Solution.java Linked List Reverse a linked list 5 Solution.java Linked List Compare two linked lists 5 Solution.java Linked List Merge two sorted linked lists 5 Solution.java Linked List Get Node Value 5 Solution.java Linked List Delete duplicate-value nodes from a sorted linked list 5 Solution.java Linked List Cycle Detection 5 Solution.java Linked List Find Merge Point of Two Lists 5 Solution.java Linked List Inserting a Node Into a Sorted Doubly Linked List 5 Solution.java Linked List Reverse a doubly linked list 5 Solution.java Tries Contacts 40 Solution.java Queues Queue using Two Stacks 30 Solution.java Heaps Find the Running Median 50 Solution.java Multiple Choice Data Structures MCQ 1 5 Solution Multiple Choice Data Structures MCQ 2 5 Solution Multiple Choice Data Structures MCQ 3 5 Solution