Linked List

• Structure
  • Singly
  • Doubly
• Search in Linked List
• InsertAfter a Node
• Delete a Node

Questions

• Merge 2 sorted list
• Reverse Linked List II
• Linked List Cycle II
• Intersection of Two Linked Lists
• Delete Node in a Linked List
• Remove Nth Node From End of List
• Remove Duplicates from Sorted List
• Rotate List
• Odd Even Linked List
• Palindrome Linked List
• Partition List
• Add Two Numbers

Questions

• List Zipping 
• Copy Posting List
• Convert  Sorted DLL to BST
• Convert BST to Sorted DLL  

Binary Trees

Questions

• Balanced Binary Tree
• Symmetric Tree
• Lowest Common Ancestor of a Binary Tree
• Sum of Root To Leaf Binary Numbers
• Path Sum
• Binary Tree Inorder Traversal
• Binary Tree Preorder Traversal
• Construct Binary Tree from Preorder and Inorder Traversal
• Populating Next Right Pointers in Each Node II

Questions

• Height of tree with leaf nodes joined to adjacent leaves
• Given two nodes of a infinite tree find number of black nodes in path 

Binary Search Trees

Questions

• Validate Binary Search Tree
• Kth Smallest Element in a BST
• Lowest Common Ancestor of a Binary Search Tree
• Construct Binary Search Tree from Preorder Traversal
• Merge Two BST