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Elegant solutions

Name: Anonymous 2007-06-28 15:16 ID:lcs47ZU6

Im bored, show me some good code (any language whatsoever)
Post a problem, then a great solution.

1) Transpose a matrix
(apply #'mapcar #'list '(( 1  2  3  4)
                         ( 5  6  7  8)
                         ( 9 10 11 12)
                         (13 14 15 16)))
(( 1  5  9 13)
 ( 2  6 10 14)
 ( 3  7 11 15)
 ( 4  8 12 16))

Name: Anonymous 2007-07-03 9:27 ID:fkP3dR0i

>>64

#define bigger(x, z) ((x>z)?(x):(z))

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