I was asked to code up a function to validate if sudoku is valid or not . it was easy medium question but here are some mistakes : \nI used #define size_of_sudoku 9, I find global variables to be bad , made a mistake in hurry \n\nWhen he asked me to generalize it for n by n board i told him the condition for the same but we had just 4 minutes left and I missed out on a few things over therr like changing the loop structure for N ...\n\n\nare these things a very big blunder ? Any thoughts?\nIf they are red flags?

I was asked to code up a function to validate if sudoku is valid or not . it was easy medium question but here are some mistakes : \nI used #define size_of_sudo