Online test plus 3 Skype rounds; rejected despite answering with given hints

Application

I applied through a recruiter. The process took 2 days. I interviewed at Zomato (Gurgaon, Haryana) in Feb 2019

Interview

Online Test, 3 Skype rounds. And after the last round i getting the response you answered all questions after giving hints. Why the hell you give hints then? Recruiters are immature. They are not bothered about anything and mail you anything blindly. Dont waste your time interviewing here.

Interview questions [1]

Question 1

Covered everything Os, sql. Implement custom stack.