Google

The process, applied through referral, takes 3 months. First, there is an online coding assessment. Next are two rounds of on-campus interviews and four rounds of on-site interviews. The on-site interviews include a lunch round.

Algorithm to partition an array such that zeros are on the left side and other numbers are on the right side. Use an in-place optimal solution.

A 5-round interview in a day, 45 minutes each. Four rounds were for coding, and one was for behavior. After one week, I was asked to take one more behavior interview before the hiring committee review.