For you not to lose that IT job, one should avoid some certain mistakes in the final stages of his or her job interview because you might pass through the screening process and do so well in the take home assignments but still fail to land that job.
You may have passed the technical test and the culture fit (let’s just assume that) but admittedly performed badly at the whiteboard coding interviews. The truth is that you must be prepared to do whiteboard interviews. The whiteboard interview is, in some ways, a hybrid of a technical test of the depth of your knowledge and also a social exercise, here it’s not much about the code, it’s about your solving abilities. My opinion is that although you believe that in such a skill (being good at whiteboard interviews) is about having a set of very good other skills, soft and hard.
There are a few comments of people proposing their solution to this problem. But it’s not the point of the article to get the most solution out of this. Now it’s imperative here, you pay rapt attention to the last question from the interviewer.
For the white board interview, you should start from the solution, by now you must have gotten the idea of the solution. You must be articulate in order to convince the interviewer that you know what you are talking about.
You should practice the whiteboard interview, learn the routine. Learn it like that song you love so much listening to.