Siemens Developer interview questions

1st round was written which had 2 sections. 1. CPP related and 2. aptitude. out of 50, 20 cleared the 1st round. 2nd round was technical. Interviewer asked many questions on CPP and also about my current project and experience. I was told the HR will contact me, but there was no respond from HR after that.

Online aptitude at stage 1 T.r 1. In which you first have to solve logic puzzle then the question asked by interviewer. T.r 2 in which c language program are asked and you have to write them for the given logic. H.r round