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.
Distance walked 3D
Great Circle Distance
Crossing to Kissing - Untangle the Lines
Mastermind IV: Optimal Solver - max of 5 guesses
Slitherlink II: Gimmes
Identify Reachable Points
Solve Rubik's Cube - One Rotation
Top of the Hour : Return from your routine within 1 second of the hour
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