Hi All,

I am currently working and have 4+ yrs of experience and gave the onsite interview few days ago and got the below questions. I was told by the recruiter that I would have 4 rounds (1 SD + 3 Coding) but I had 2 OOD and 2 Coding.

Since this was my first interview experience with any FAANG till date, it gave me a good reality check that I am not at all prepared yet.
All the rounds had 20-30 mins behavioral questions.

Round 1 - OOD question - Hotel Reservation (I hadn't prepared for OOD in depth and struggled to get going in this round.

Round 2 - Coding question - I don't think the question was from Leetcode. If someone sees any similar question, please let me know.

The input was 2D integer array and the output was List of Integer. I had to find the smallest K numbers from the 2D array. The rows were sorted.

My approach - I used PQ to store the first column but struggled to move across the array. Couldn't finish.

Round 3 - Coding question - Variation of Word break I think. The only round where I could solve the question.

Round 4 - I was expecting a SD question but then got another OOD question involving Lockers and packages. I couldn't solve it .

Very disappointed from my performance but got a good reality check that I need to work harder.
But I am not sure how to go about OOD questions, I struggled to get going there. I had seen the G-R-O-K-K-I-N-G question but to come with those logics, I am not sure how to practice those.

I also need to change my method of solving leetcode questions.

If you guys could help me with any strategies for preparation, that would be very helpful. I am currently working and it was really tough to revise the concepts because of the job.