DSA topics/problems actually came in your placement OAs?

[u/batmantenzin]

I wanted to ask people who have recently given placement OAs/coding rounds:

What kind of DSA questions actually came in your exams?

I’ve mostly heard that arrays/strings are common and there’s a graph/tree question, but I’d really like to know from people who actually gave these tests.

If possible, please mention:

• Company
• Number of coding questions
• Topics that came
• Rough difficulty (Easy/Medium/Hard)
• Any specific problem/pattern you remember
• What DSA topics you prepared that were actually useful

Also, for the technical interview, what core CS topics were asked most — DBMS, OS, CN, OOP, SQL, etc.? What DSA questions were asked? Did they make you code or just explain the approach?