3 DSA question were aksed and they were very hard as if they not even want the student to clear that test, i later checked and they were CP level of questions and marked as very hard on leetcode, all 3 of them

first round OA. Second round hackathon part A. Third round DSA based round - questions around graphs, arrays, binary search. Fourth round hackathon part B - this was based on part A. Fifth round - systems round - questions related to OS and socket programming.