Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum.
Note: A leaf is a node with no children.
Example:
Given the below binary tree and sum = 22
,
5
/ \
4 8
/ / \
11 13 4
/ \ / \
7 2 5 1
Return:
[
[5,4,11,2],
[5,8,4,5]
]
给定一个二叉树和一个目标和,找到所有从根节点到叶子节点路径总和等于给定目标和的路径。说明: 叶子节点是指没有子节点的节点。
- 这一题是第 257 题和第 112 题的组合增强版