Pattern

DFS Traversals (Pre / In / Post)

3 problems in the roadmap use this pattern.

• Binary Tree Inorder Traversal Easy

  in Binary Trees

  Reported at: AmazonMicrosoftApple+1
• Binary Tree Preorder Traversal Easy

  in Binary Trees

  Reported at: GoogleAdobe
• Binary Tree Postorder Traversal Easy

  in Binary Trees

  Reported at: Meta