Microsoft Software Development Engineer (SDE) interview questions

It is a good interview and as the interview starts he starts with a medium level dsa question based on graph and finally a question on low level system design.

The first round was an online coding round, and it had 2 easy questions. First question was related to DP on bitmasks, and second was basic array question. Around 20-25 people got selected for round 2, which was technical interview. Round 2 I was asked to code word ladder 1 question. Some follow up questions were asked. I got to round 3. Round 3 was also a technical interview, but mixed with some HR questions. I was asked largest palindromic substring question. I gave O(n²) solution.