First creative solution for Square Spiral by jcg - python coding challenges

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First solution in Creative category for Square Spiral by jcg

import math
def coord(n) :
    k = int(math.sqrt(n-1))
    i = n - k**2-1

    return map (lambda x : (1 - 2 * (k%2)) * (k//2 - x), (i, 0 - k%2) if i
                        May 30, 2014

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