Sudoku Validator - Scotiabank's Job Interview Assignment
Using only core C# or Java language (no open-source libraries), write a method that takes in a file as input and returns true or false whether the contents of the file is a valid solution to a Sudoku puzzle. The solution should handle exception scenarios. (You can create additional classes as necessary. Please keep all classes in same solution. Also include unit tests and test case files used.) https://en.wikipedia.org/wiki/Sudoku
Expected file format attached (input_sudoku.txt)