Initial phone call. Technical call. Onsite. Pretty typical, the questions are also relatively easy – nothing that's really hard on the LeetCode scale. The one thing you definitely need to do is to vocalize and explain every part of your thought process.

The great thing was after I got rejected, they offered to tell me the team's feedback over a phone call. They even went into feedback on some of the specific parts of the interview. Not a lot of companies will do this, so I definitely give them huge props for this.

Print out a tree's paths from root to leaves.