4 rounds (1 coding + 3 technical) with inconsistent interviewer quality and slow HR

Application

I applied in-person. I interviewed at Zomato (London, England) in Feb 2019

Interview

Total 4 rounds: 1 Coding, 3 technical Only 1 tech interviewer was good, one was trying to prove that everything he is saying is right even if it is wrong. And 3rd one was busy on mobile in whole interview process. Bad HRs, they won't listen you, won't pick calls and won't reply mails.

Interview questions [1]

Question 1

Trie, Tree, Sql, Linked list, Java, BFS, DFS