Dassault Systèmes Software Engineering Associate interview questions

Initially one selection round was there. Some students were selected for interview round. In interview there were 2 round. Round 1- On paper test- 45 mins- 5 basic c++ question 1. Merge sort 2. Complexity of a algorithm 3. Patter print simple * * * * * * * * * * * * * * * Round 2- Technical Interview Initially some puzzles question was asked