README_EN.md

114. Flatten Binary Tree to Linked List

中文文档

Description

Given a binary tree, flatten it to a linked list in-place.

For example, given the following tree:

    1

   / \

  2   5

 / \   \

3   4   6

The flattened tree should look like:

1

 \

  2

   \

    3

     \

      4

       \

        5

         \

          6

Solutions

Python3

Java

...