Round 1 - Online Test Round 2- Technical Interview The interviewer asked me to explain all OOPS concepts, the projects that I have mentioned in my resume. He told me to write codes for the following:- Reverse a linked list, If you have an array of 0s and other numbers output should be all 0s to the right side, and the rest numbers should be in place, How will you make a binary tree from an array. Round 3- HR interview The interviewer asked two puzzles, one was the 100 doors question where I had to tell the number of doors that will be open and the number that will remain closed. The second puzzle was you have a pan and you can toast 2 pieces of bread at a time and each side of the bread takes 5 mins to heat up. If you have 5 pieces of bread then how much minimum time is needed to toast these 5 breads. You can do puzzles from GFG.