Unthinkable Software Developer interview questions

It was a walk-in drive. The first round consisted of 3 DSA questions (1 hour to solve, each of 30,35,35 marks), moderate difficulty. The shortlisted candidates had another coding round (1 more question - 25 minutes, 100 marks). Then the ones shortlisted had interview. There might be 1 / 2 rounds on interview - technical and HR (I am not sure of these, since i could not qualify the second round).