Sudoku

Input is a sequence of 81 interers ranging [0,9], encoding the initial board position, left-to-right and top-down, with 0 for empty squares; output should be a sequence of numbers ranging [1,9].

Environment:

This program has been tested on a Ubuntu 16.04.1 64-bit machine. The detailed hardware and compiler configurations are:

CPU:      Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz
Memory:   16GB
Compiler: g++-5.4.0

Build:

$ make clean
$ make

Run Sudoku directly with board string:

$ ./sudoku 003020600900305001001806400008102900700000008006708200002609500800203009005010300

Run Sudoku and get input from board configuration files:

Note that the output has been suppressed in these scripts. Only the runtime will be printed.

$ ./test_sudoku.sh benchmark 5

Run all board configurations from files:

$ ./test_sudoku_all.sh benchmark