앞뒤로 두 갈래 나무를 두루 다니다 LeetCode Binary Tree Preorder Traversal 앞의 두 갈래 트리 귀속과 비귀속 해법 반복 Binary Tree Preorder Traversal Given a binary tree, return the preorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3} , return [1,2,3] . Note: Recursive solution is trivial, could you do it i... LeetCodetreebinarypreorder앞뒤로 두 갈래 나무를 두루 다니다
LeetCode Binary Tree Preorder Traversal 앞의 두 갈래 트리 귀속과 비귀속 해법 반복 Binary Tree Preorder Traversal Given a binary tree, return the preorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3} , return [1,2,3] . Note: Recursive solution is trivial, could you do it i... LeetCodetreebinarypreorder앞뒤로 두 갈래 나무를 두루 다니다