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.
Knight's Tour Checker
Increment a number, given its digits
Project Euler: Problem 10, Sum of Primes
Find best placement for ordered dominoes (harder)
Battleship - Seaman Level
Coin Tossing: Probability of Same Heads for N tosses
Chezz_015 : Simplified chess
GJam: 2013 Rd1a Bullseye Painting - Large Numbers
Top of the Hour : Return from your routine within 1 second of the hour
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