Yup. In a normal environment, when given a tough problem to solve, a whiteboard is like a scratch pad for ideas. Out of that amalgamation of insights, comes t

Yup. In a normal environment, when given a tough problem to solve, a whiteboard is like a scratch pad for ideas. Out of that amalgamation of insights, comes the final solution. When given a whiteboard, the interviewer ought to assess the thought process the interviewee is going through. Even if the outcome is wrong, if the thought process in acceptable, the solution will present itself eventually. As an interviewer, I would also ask to list out the many ways one can solve a problem. To me this is utmost important because in the real world, choosing one of the many ways to solve a problem is an important skill. The theoretically correct solution is not always the practical / implementable / cost-effective solution.