Contest 6 - Sudoku solver - Discussion

[Merri]

means that i had the fastest single time: 027_0273 in 0,003 ms.
...
BRI: 027_0273 0,032

How you can have two times for the same puzzle? Does your solver solve the same puzzle two times in a row? I get a time below 0,02 only if I try to solve the same puzzle two times in a row.

I also noticed that my output benchmark gives me worse timings, there seems to be about 0,015 ms slow down per sudoku. This is probably due to the outputting in the middle of the timing. My code performs better if it just does nothing but solves the sudokus it is given, all in row, because it allows CPU to do better predicting. This is also why Quick benchmark gives much better total time than doing any other benchmark

By outputting the results, I get a total time of 160 ms
By timing individual results, I get a total time of 118 ms
By just solving them, I get total time of 114 ms