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].
Test if a Number is a Palindrome without using any String Operations
Replace multiples of 5 with NaN
Min of a Matrix
GJam 2014 China Rd B: Dragon Maze
Skyscrapers - Puzzle
Graceful Graph: Wichmann Rulers
GJam 2014 Qualifier: Deceitful War (Small)
Rubik's Cube: Solve Randomized Cube - Score : Moves
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