In <mailman.5609.1389912537.18130.python-l...@python.org> Mark Lawrence
<breamore...@yahoo.co.uk> writes:
> > input = "344111133311222223377"
> > output = []
> > previous_ch = None
> > for ch in input:
> > if ch != previous_ch:
> > output.append(ch)
> > previous_ch = ch
> > print ''.join(output)
> >
> Cheat, you've used a list :)
Ack! I missed that the OP doesn't want to use lists.
Well, let's try this instead:
import sys
input = "344111133311222223377"
previous_ch = None
for ch in input:
if ch != previous_ch:
sys.stdout.write(ch)
previous_ch = ch
sys.stdout.write('\n')
--
John Gordon Imagine what it must be like for a real medical doctor to
gor...@panix.com watch 'House', or a real serial killer to watch 'Dexter'.
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