What\'s up fellow leetcoders?\n\nWelcome to the community for [Recursion I](https://leetcode.com/explore/learn/card/recursion-i/). Here is the virtual classroom for you to get help from your instructors and engage with fellow students from all around the world!\n\nMy name is Lisong ([@liaison](/liaison)) and I helped author this explore card. I am super excited to engage with all of my readers! Feel free to ask me any questions and I\'ll try my best to help. Or even suggest what you\'d like to learn next and I\'ll focus on writing that next.\n\nSuggestion or feedback about [Recursion I](https://leetcode.com/explore/learn/card/recursion-i/) are welcomed here too!\n\nFound a typo or a **bug**? Report it! You can create a new post and we\'ll look into it as soon as possible.

What\'s up fellow leetcoders?\n\nWelcome to the community for Recursion I. Here is the virtual classroom for you to get help from your instructors and engage wi