Two months after the online assessment, virtual onsite, one round of behavioral questions, and three rounds of coding. The tech interviewers were really nice people; they always tried to help and never purposely created difficulties. Typically, the coding questions were medium difficulty. You could always start easily, but some were not easy to solve with the most optimized solution. Generally, the process was very professional.

Graphs are always a hot topic for Google. I was asked a question very similar to this: In a grid, there are walls and rooms. Find whether a path exists from the upper-left cell to the bottom-right cell, avoiding blocked cells by walls.