Description: Sudoku @ a program written in pure C, do not rely on special libraries, easy to transplant. Personal originality!
@ Uses backtracking, pruning program uses dynamic programming to optimize a lot, than the average Sudoku program can count the number of steps used, the number of branches across the middle, the reflection of the difficulty of the subject, although it is not and people skills compared You can also refer to.
@ Sudoku method for the study may not help, but it can help verify the results, statistics difficult. For questions can be removed when the entry is also available in its validation. There code, you can easily modify the read.
@ Solution is probably the most difficult sudoku 1s around the world
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File list (Check if you may need any files):
sudoku
......\Makefile
......\sudoku
......\sudoku.c
......\test.sh
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