SAP Software Engineer interview questions

It involved two coding questions.One of the question was easy with question on array operation while the other was difficult. It was on permutation and I couldn't pass all the test cases. The round was language independent.

Technical interview, followed by another tech round, and finally hr. The first round, I was asked based questions regarding myself, and my projects. They further asked me which out of OOPS, OS and DBMS is my strong point and I answered OOPS. So, they asked me a few questions on that. Regarding final, static etc. Further asked about inheritance.