Nielsen Software Development Engineer (SDE) interview questions

Interview consists of 2 coding questions including 2 sum problem and 2 pointer approach Then something about projects what we did what tech we used and at last core subjects were asked

1st round OA dsa and mcq got selected 1st interview round easy / medium dp and dsa questions and questions related to internship got selected 2nd interview round easy/ medium dsa question , i wasnt able to give the best solution interviewer only focused on best solution not on the approach he gave time but i wasnt able to find it. gave 1 sql query and questions related to internship. (got rejected)