21 [Leetcode][Javascript][Medium] 107. Binary Tree Level Order Traversal II /** * https://leetcode.com/problems/binary-tree-level-order-traversal-ii/ * Binary Tree Level Order Traversal II - LeetCode * Definition for a binary tree node. * function TreeNode(val, left, right) { * this.val = (val===undefined ? 0 : val) * this.left = (left===undefined ? null : left) * this.right = (right===undefined ? null : right) * } */ /** * @param {TreeNode} root * @return {number[][]} .. 2021. 7. 5. 이전 1 다음
