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BASIC (6)
EASY (39)
MEDIUM (36)
HARD (2)
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Add Number Linked Lists
- Detect Loop in linked list
- Check for BST
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Sum Tree
- Diagonal Tree Traversal
- Tree Boundary Traversal
- Lowest Common Ancestor in a BST
- Vertical Tree Traversal
- Get Min from Stack
- Remove loop in Linked List
- Palindrome Linked List
- Top View of Binary Tree
- k-th Smallest in BST
- Level order traversal
- Ancestors in Binary Tree
- Root to Leaf Paths
- Isomorphic Trees
- Median of BST
- ZigZag Tree Traversal
- Count Number of SubTrees
- Reverse array in groups
- Kadane's Algorithm
- Indexes of Subarray Sum
- K Sized Subarray Maximum
- Number of Unique Paths
- Implement Trie
- Sort 0s, 1s and 2s
- Prime Pair with Target Sum
- Number of paths
- Stream First Non-repeating
- Reverse a linked list
- Frequency in a Linked List
- Pairwise swap elements of a linked list
- Node at a given index in linked list
- Remove duplicates from an unsorted linked list
- Inorder Traversal
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Maximum Width of Tree
- Height of Binary Tree
- Kth from End of Linked List
- Middle of a Linked List
- Left View of Binary Tree
- Remove Duplicates from a Sorted Linked List
- Postorder Traversal
- Reverse Level Order Traversal
- Identical Trees
- Level Order Line by Line
- Odd even level difference
- Leaves at Same Level or Not
- Intersection of Two Linked Lists
- Level of a Node in Binary Tree
- Minimum element in BST
- Sum of leaf nodes in BST
- Sum of Leaf Nodes
- Maximum Area Rectangle
- BigInteger Multiply
- Power of 2
- Array Leaders
- Count ways to N'th Stair
- Missing in Array
- Equal Sum and Product
- Min sum formed by digits
- Minimum Operations
- Find sum of divisors
- Least Prime Factor
- Count all possible paths from top left to bottom right
- Print Diagonally