Walmart Senior Java Developer interview questions

It went three rounds of interview code assessment, Technical Round, and HR round. I got update after two months. Its too hard to clear the technical round its been 2 hours of interview.

Interview scheduling and communication is good. HR told there would be 5 round of interviews. 3 technical,1 Manager and Final will be HR. First technical interview went well, 2 array related problem solving and some Java and spring questions. Coming to second round of technical interview, the interviewer was burping before he started asking my introduction. When I was explaining my project and skillset he started showing attitude by stopping me before I say anything. He given a problem to solve which is rain trapping water problem from a site and provided the same inputs which are there already. When I tried to solve in my way he saw the solution from that site and asked me to follow another approach which is already threre in the site. Oh hello, if you don't know how to solve the problem why are you asking by copying from a site. I denied to solve it and got rejected but I felt happy later.