The DSA interview process usually starts with an online coding test containing basic algorithm problems. Next, you’ll face one or two technical interviews where you're asked to solve DSA questions in real time. Topics include arrays, strings, recursion, hash maps, and trees. You may be asked to optimize your solution or explain time complexity. Finally, there's an HR round to assess your communication, attitude, and cultural fit.
Interview questions [1]
Question 1
They asked me to solve a problem on finding the longest substring without repeating characters. I had to explain my approach step by step, then write and optimize the code using the sliding window technique