The Knots Contest GradeIt function is not the number of Knots. FYI
if possible could you fix the url in this problem testsuite? (and perhaps also in the Rubik's series as well? it seems tinyurls tend to have a short life...)
not really sure, but perhaps there are some numerical precision issues for some of the near-colinear cases in the testsuite? (if so perhaps it would be useful to resample the testsuite nodes to remove colinear or near-colinear cases?)
The expected knots table was based upon the Official slow scoring method. The docross function creates many warning messages "Warning: Matrix is singular to working precision. ". A single case, #3, takes >0.3 seconds versus expected 0.01 seconds.
Find common elements in matrix rows
Bottles of beer
Convert a structure into a string
Hackathon - String version
Script file size
Play Tic-Tac-Toe: Easy Bots
TRON Tourney 000 : Clockwise Wall Hugger
Unique: Enhanced Performance - Large and Wide Array - Speed Improvement (66% savings)
Chezz_000 : Simplified chess
Mandelbrot Number Test [Real+Imaginary]
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