개발하다 끄적끄적 개발하다 끄적끄적

https://leetcode.com/problems/construct-string-from-binary-tree Construct String from Binary Tree - LeetCode Can you solve this real interview question? Construct String from Binary Tree - Given the root of a binary tree, construct a string consisting of parenthesis and integers from a binary tree with the preorder traversal way, and return it. Omit all the empty leetcode.com 606.Construct Strin..