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franklin-e/sum on diagonals.py

Created August 29, 2010 23:31
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sum on diagonals.py
side = 1111
corners = [1]
stepper = (1, 2, 2, 2)
counter = 1
side -= 1
while counter <= side * side:
counter += 1
for step in stepper:
counter += step
corners.append(counter)
new_step = stepper[0] + 2
stepper = (new_step, new_step+1, new_step+1, new_step+1)
print sum(corners)
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