Python code by aaronla - 7 lines

Link:

aaronla - Python, pasted on Sep 30:

def e(x):
  return e(x-1) if x else 0
def e(x, e=e):
  return e(x-1) if x else 1

for x in range(0,5):
  print "even %i -> %i" % (x,e(x))

Output:

even 0 -> 1
even 1 -> 0
even 2 -> 1
even 3 -> 0
even 4 -> 1

posted by g4b on Oct 7

def e(x, e=lambda x: e(x-1) if x else 0):
return e(x-1) if x else 1