Easy
Quiz
#94 Binary Tree Inorder Traversal
APPROACH
Return the node values of binary tree root in inorder traversal order (left subtree, then root, then right subtree).
1 of 4
1:00
What is the optimal approach for this problem?
#94 Binary Tree Inorder Traversal
APPROACH
Return the node values of binary tree root in inorder traversal order (left subtree, then root, then right subtree).
What is the optimal approach for this problem?