Google

I applied through their career website with a referral and went through 4 rounds of DSA. I was able to clear 3 rounds. The difficulty was average; LeetCode medium and hard problems would be enough.

3 rounds of DSA and 3 rounds of C++ questions asking. Then an HR interview round. Then projects asking, and asking about OS and database system process.

Very easy if you know data structures and algorithms very well, plus creative thinking and some knowledge of system design. You are good to go. They mainly focus on data structure and algorithm questions and how well and optimized a solution you can