IBM Software Engineer Intern interview questions

Was given an automatic OA, but I haven't heard back after doing it. I passed all the test cases by the way, so it is kind of confusing. The first question was basically a merge sort, and the second was a subarray

They sent an email saying it was 30 min. It was all technical, the one next is supposed to be behavioural, but he said if you get through technical your basically good to go. It was all high level questions, but some were really specific. He asked me to pick my 2 favorite languages, and asked me the difference between the 2. Also asked about databases, differences between mySql and noSql. Why use react, what the benefits of it are. It was chill, just getting a rough idea of my skill set.