binary_tree_paths

README

< Previous 　　　　　　　　　　　　　　　　 Next >

257. Binary Tree Paths (Easy)

Given a binary tree, return all root-to-leaf paths.

Note: A leaf is a node with no children.

Example:

Input:

   1
 /   \
2     3
 \
  5

Output: ["1->2->5", "1->3"]

Explanation: All root-to-leaf paths are: 1->2->5, 1->3

Related Topics

[Tree] [Depth-first Search]

Similar Questions

1. Path Sum II (Medium)