radius of a spherical planet
Getting the row and column location from a matrix
Basic arrays operations.
select the primes of a vector
Length of a short side
GJam 2014 China Rd A: Read Phone Number
GJam: 2013 China Event: Name Sorting
USC Spring 2013 ACM: Building Snowmen
GJam 2011 Africa Qualifier C: House, maximum area rectangle
PONG 002: Rectangle, Interactive Download, Easier Play
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