First round is an OA with 2 leetcode problems around medium difficulty. Important to focus on code quality not just solving it as fast as possible.
Second round is an hour technical interview. No leetcode questions but be prepared to know the C++ language and explain computer science principles (ie data structures, inheritance, etc). No brainteasers or probability questions for me.
I didn't get to the third and fourth round but I was told its a take home assessment and then a technical interview going over the take home.