Recruiter screen:
General screening questions, was asked how much time I wanted to prepare and asked for two weeks even though recruiter suggested to take more time.
Phone screen:
- https://leetcode.com/problems/range-sum-of-bst/description/ - recursive solution was accepted
- https://leetcode.com/problems/dot-product-of-two-sparse-vectors/description/ - came up with a similar solution to approach 3 and was accepted
Interviewer did not ask for complexities but I brougth them up right before ending the call.
Got confirimation within two days that I made it through to the onsite. Again, I was given a the option to take a few weeks to prepare but I decided to take to weeks to prepare and had the onsite scheduled within two weeks.
Onsite:
- https://leetcode.com/problems/add-strings/description/ - similar to this one but with decimal points; took me longer than it should have
- https://leetcode.com/problems/shortest-path-in-binary-matrix/description/ - suggested bfs solution with a deque and was told to implement it; unfortunately I ran out of time missing one or two lines to complete the solution.
- https://leetcode.com/problems/strobogrammatic-number/description/ - came up with two pointer solution
- https://leetcode.com/discuss/interview-question/4288566/E4-meta-phone-screen-qs/ - coded a solution that traversed departing array from right to left while keeping the minium of the returning one as well as calculating the min cost
- System design (architecture): design a search system for an existing platform like threads / twitter
- Behavioral - typical behavioral questions; make sure to have several stories prepared that follow the STAR method. Interviewer requested to keep my answers around my most recent position.
The whole process took about five weeks from recruiter reaching through linked in all the way up to rejection email. The onsite itself was not hard at all but I focused too much around studying leetcode problems and spent very little time around system design and preparing for behavioral questions. On to the next one.