I am sure there are other more subtle ways to go about it but this seems about as fast as I can make it for a general brute-force solution (0.11s)
This one seems to work for the large test case, too, although it is not a general solution [for size(p,1)>100 it only tests corner points].
Renaming a field in a structure array
Back to basics 22 - Rotate a matrix
Find number patterns in rows of a matrix...
PACMAT - G03 Ghosts use minimum path to PACMAT; 3 Lives
GJam 2014 China Rd A: Read Phone Number (Large)
Primes for Large N: 2^30, System Memory Limit
Kaggle: Planetoid Game of Life - Solve 40 non-trivial Puzzles
GJam 2013 China Event: Happy Teams 100 Pairs
Find the treasures in MATLAB Central and discover how the community can help you!
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office