Sum Root to Leaf Numbers is an [interesting problem from LeetCode](https://leetcode.com/problems/sum-root-to-leaf-numbers/). The problem is of medium difficulty and is about binary trees. This post is an explained solution to the problem.
Sum Root to Leaf Numbers is an [interesting problem from LeetCode](https://leetcode.com/problems/sum-root-to-leaf-numbers/). The problem is of medium difficulty and is about binary trees. This post is an explains the solution to the problem.
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I assume that you’re familiar with Python and the concept of binary trees. If you’re not, you can read [this article](https://www.tutorialspoint.com/python_data_structure/python_binary_tree.htm) to get started.
@ -14,6 +14,8 @@ import BadCommunicationURL from '@site/static/img/bad-communication.jpg';
At Facebook where I work at, strong communication is crucial for a successful career. As engineers, sometimes we get too focused on execution and it's easy to forget about communicating our work broadly. Perhaps some of us are new to a large engineering organization and previously did not have the tools to foster communication nor was it emphasized by the company.
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I love to code. Personally, I would love to shut off all communication channels and focus entirely on coding if I could. However, doing that will probably have disastrous effects. Communication is super important and I learnt that the hard way when I first started at Facebook. In my first year at Facebook, I made a few painful mistakes related to communication. I changed the project plans and timeline without informing my tech lead, resulting in my teammate having to cover me at the last minute and do the work I reprioritized without telling anyone. In another instance, I didn't communicate that I was going to do some work that my teammate had planned to do, resulting in wasted efforts. From then on, I made a mental note to myself to communicate broadly and early wherever possible and seek alignment. I'd err on the side of over-communicating rather than under-communicating (though sometimes I still forget).
A number of students from the Project Intern group have been asking me questions related to Facebook internships, working at Facebook, and my personal journey. I decided to write down my answers in the form of a blog post so they can be shared more broadly and I can point people to this blog post in future whenever I get asked similar questions.
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**_I am not a recruiter and I might have answered some of the recruiting or internship-related questions wrongly, so take them with a grain of salt. Opinions expressed are my own and do not represent the views of my employer._**
Yangshun
4 years ago