LeetCode 297 Serialize and Deserialize Binary Tree Explanation and Solution

Chinese Version: https://youtu.be/1BbMhi2hxDM Inspired by and credit to https://leetcode.com/problems/serialize-and-deserialize-binary-tree/discuss/74253/Easy-to-understand-Java-Solution/77363 If this helps, please like this video and subscribe to my channel. Source code and videos list: https://happygirlzt.com/codelist.html Notes: https://github.com/happygirlzt/algorithm-illustrations If you prefer, you could support me by clicking the ads on my homepage (not YouTube ads): https://happygirlzt.com Support on PayPal: https://www.paypal.me/iamhappygirlzt/5usd Support on Patreon: https://www.patreon.com/happygirlzt Telegram group: https://t.me/joinchat/MEG1zxZWquyNnfxx8ik5sA FB group: https://www.facebook.com/groups/2678299519060558/ Thanks in advance. :D Happy coding every day!