Accenture System Engineer interview questions

I cleared all rounds of interview and uploaded the documents as said.but didn't got the offer letter.no response from the HR called and mailed several times they don't pick. I don't know why they conducting fake interviews.

First there will be a written test on Aptitude and coding test on C and JAVA Read and pratice the code and snippet questions.... Aptitude questions will be mostly on time and work timand distance profit loss HR is just formality