Sudoku Solver
A simple program to solve Sudoku puzzles of any size (4, 9, or 16).
Compilation
g++ -O3 -Wall -o sudoku main.cpp Sudoku.cpp
Usage
The binary takes one argument that specifies a file to read a board from. Sample boards are in the boards folder.
./sudoku boards/board9.txt
./sudoku boards/board4.txt
etc.
Each row consist of whitespace separated numbers, with a blank represented by 0. The board must be square and have dimensions 4x4, 9x9, or 16x16. Every number (other than the blanks 0) must be in the range [1, size].