Questions asked in the interview were not that difficult . They asked basic questions of DSA but asked questions from almost all topics in rounds 1 ,- Q1. Reverse a string Q2 . height of binary tree Q3. find square root - binary search Q4. explain sorting techniques - merge sort and many other question related to datastructure - map , how it works etc . THey also asked about T.C and S.C . But because they wanted to hire only few so even if u answered most question, going up to round 4 isn't easy . in roud 2 ,3 they would ask more computer fundamental questions and a few dsa questions .