Interview Grading Policy:
0 = did not attend the interview or attended the interview but had nothing significant to say towards the solution of the interview problem.
1 = a correct idea towards the solution but couldn`t continue.
2 = some good progress towards the solution but couldn`t quite finish the solution
3 = a complete solution but nothing more
4 = (a complete and well-organized explanation of the solution) OR (a complete solution and a correct answer to an extra question)