Google

People are nice. The working environment is so-so. The cafeteria is crowded. Questions are not particularly hard, but you need to write on the whiteboard quickly.

Everything went smoothly. There were hard questions. People were very nice. Some coding puzzles were not clear how to solve, like a lot of binary tree and graph traversal questions. Some in-depth C++ questions, such as "What is a virtual function?"

The interview process consisted of four rounds, including a free lunch. Everyone was very nice and kindly directed me to the solution when I got stuck. However, the questions were not very easy and required some time to think about.