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posted by LaminatorX on Wednesday July 02 2014, @12:34PM   Printer-friendly
from the Which-Door-would-He-Suggest? dept.

Computational nanoscientist Surendra Jain has written solvers for Sudoku, Killer Sudoku, Samurai Sudoku, Calcudoku, Kakuro and many other logic problems.

All are elegantly coded and very fast: for example, the "World's Hardest Sudoku" is solved in 0.05 seconds (on a 5 year old PC) and his Knight's Tour solver is an order of magnitude faster than this one.

The page (called "Classical Geek") has all source (in Fortran 90, one of the most popular languages in high-performance computing) as well as compilation and running instructions.

 
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  • (Score: 2) by TGV on Thursday July 03 2014, @05:26AM

    by TGV (2838) on Thursday July 03 2014, @05:26AM (#63410)

    I thought you were joking, but no, the Sudoku_solver is precisely as you describe. It's awful. The other variable names in the core routine are small_cell_row,small_cell_column, value1,value2,value3,value_cells1,value_cells2,value_cells3. That's unreadable.

    I think said freshman should be glad with a C.

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