I am having 12 years of experience. The first was round taken by a guy having 2 years as experience. He simply pasted a screen shot of leetcode medium question from array "make all element of a perticular row and col zero if that corresponding row, col position has zero value in 2d array. I provided the most optimised solution which he was not aware of. I explained two times, but he was confused. Probably he was aware of solution with additional space complexity where as I solved without using additional space. Without even asking if I have any question or not, he said" As you don't have question, so let close the call". I immediately said, I have few questions, if you have time and asked two questions. Result : He rejected. Pathetic experience, just waste of time.