README ¶ https://leetcode.cn/problems/binary-tree-right-side-view/ 199. 二叉树的右视图 中等 给定一个二叉树的 根节点 root,想象自己站在它的右侧,按照从顶部到底部的顺序,返回从右侧所能看到的节点值。 示例 1: 输入: [1,2,3,null,5,null,4] 输出: [1,3,4] 示例 2: 输入: [1,null,3] 输出: [1,3] 示例 3: 输入: [] 输出: [] 提示: 二叉树的节点个数的范围是 [0,100] -100 <= Node.val <= 100 Expand ▾ Collapse ▴ Documentation ¶ Index ¶ type TreeNode Constants ¶ This section is empty. Variables ¶ This section is empty. Functions ¶ This section is empty. Types ¶ type TreeNode ¶ type TreeNode struct { Val int Left *TreeNode Right *TreeNode } Source Files ¶ View all Source files rightSideView.go Click to show internal directories. Click to hide internal directories.