1Binary Tree Right Side ViewMediumTreeDepth-First SearchBreadth-First Search
Solve → 2Lowest Common Ancestor of a Binary TreeMediumTreeDepth-First SearchBinary Tree
Solve → 3Sum Root to Leaf NumbersMediumTreeDepth-First SearchBinary Tree
Solve → 4Diameter of Binary TreeEasyTreeDepth-First SearchBinary Tree
Solve → 5Range Sum of BSTEasyTreeDepth-First SearchBinary Search Tree
Solve → 6Kth Smallest Element in a BSTMediumTreeDepth-First SearchBinary Search Tree
Solve → 7Diameter of Binary TreeEasyTreeDepth-First SearchBinary Tree
Solve → 8Binary Tree Right Side ViewMediumTreeDepth-First SearchBreadth-First Search
Solve → 9Lowest Common Ancestor of a Binary TreeMediumTreeDepth-First SearchBinary Tree
Solve → 10Sum Root to Leaf NumbersMediumTreeDepth-First SearchBinary Tree
Solve → 11Range Sum of BSTEasyTreeDepth-First SearchBinary Search Tree
Solve → 12Lowest Common Ancestor of a Binary Search TreeMediumTreeDepth-First SearchBinary Search Tree
Solve → 13Binary Tree Right Side ViewMediumTreeDepth-First SearchBreadth-First Search
Solve → 14Sum Root to Leaf NumbersMediumTreeDepth-First SearchBinary Tree
Solve → 15Binary Tree Zigzag Level Order TraversalMediumTreeBreadth-First SearchBinary Tree
Solve → 16Binary Tree Level Order TraversalMediumTreeBreadth-First SearchBinary Tree
Solve → 17Validate Binary Search TreeMediumTreeDepth-First SearchBinary Search Tree
Solve → 18Binary Tree Zigzag Level Order TraversalMediumTreeBreadth-First SearchBinary Tree
Solve → 19Binary Tree Level Order TraversalMediumTreeBreadth-First SearchBinary Tree
Solve → 20Maximum Depth of Binary TreeEasyTreeDepth-First SearchBreadth-First Search
Solve → 21Minimum Depth of Binary TreeEasyTreeDepth-First SearchBreadth-First Search
Solve → 22Validate Binary Search TreeMediumTreeDepth-First SearchBinary Search Tree
Solve → 23Symmetric TreeEasyTreeDepth-First SearchBreadth-First Search
Solve → 24Same TreeEasyTreeDepth-First SearchBreadth-First Search
Solve → 25Path SumEasyTreeDepth-First SearchBreadth-First Search
Solve → 26Balanced Binary TreeEasyTreeDepth-First SearchBinary Tree
Solve → 27Binary Tree Zigzag Level Order TraversalMediumTreeBreadth-First SearchBinary Tree
Solve → 28Binary Tree Level Order TraversalMediumTreeBreadth-First SearchBinary Tree
Solve → 29Validate Binary Search TreeMediumTreeDepth-First SearchBinary Search Tree
Solve → 30Minimum Depth of Binary TreeEasyTreeDepth-First SearchBreadth-First Search
Solve → 31Maximum Depth of Binary TreeEasyTreeDepth-First SearchBreadth-First Search
Solve → 32Symmetric TreeEasyTreeDepth-First SearchBreadth-First Search
Solve → 33Same TreeEasyTreeDepth-First SearchBreadth-First Search
Solve → 34Balanced Binary TreeEasyTreeDepth-First SearchBinary Tree
Solve → 35Binary Tree Level Order Traversal IIMediumTreeBreadth-First SearchBinary Tree
Solve →