November 28th, 2014
SDP03 Exercise 20
In this exercise we continued to improve the behavior of our program to play SUDOKU considering how important is to order the numbers
and to know how they must act according to the user movements.
There were some methods that were modified, in whichSquare() we wrote some useful lines to be able to locate the numbers according to the
square that they could be in. We use the row and column values to identify the digit position.
There's other method named isValidCell() in which we wrote the code lines in order to verify if the cell is valid since it must not be repeated.
We tried to use the for iterative structures so far, but we later changed to lists or sets that keep data collections so that they are better managed.