GitHub - relimS/sudoku-solver: Simple sudoku-solver with backtracking in C.

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Simple sudoku-solver with backtracking in C.

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Name		Name	Last commit message	Last commit date
Latest commit History 4 Commits
.gitignore		.gitignore
LICENSE		LICENSE
Makefile		Makefile
README.txt		README.txt
sudoku-solver.c		sudoku-solver.c

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On my system, clang compiled binary seems to be slightly faster.

Please optimize the code for me. It is painfully slow.
Example input:

0 0 8 5 0 3 0 4 0
0 0 0 0 0 0 8 0 0
0 6 1 9 8 0 7 0 0
0 0 0 0 0 0 0 0 0
2 1 0 0 0 0 5 0 0
0 0 0 2 4 0 0 0 0
0 5 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1 5
0 9 3 0 0 0 2 0 0

0 0 0 0 0 0 0 0 0
2 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 3
3 4 0 1 0 0 0 0 9
5 0 0 0 9 0 0 0 6
0 0 0 0 0 3 0 0 0
0 7 0 3 0 0 0 0 0
9 3 0 5 0 6 0 0 2
0 0 1 7 2 0 0 9 0