"Dave Angel" <da...@ieee.org> wrote
len() is very fast, so there's no need for a separate variable to keep
track of the lengths of inpile1 and inpile2. So eliminate all refs to
pile1c and pile2. In the while, just use
while len(inpile1) and len(inpile2):
Or even simpler:
while inpile1 and inpile2:
An empty list is false too.
pop(0) is slow, compared with pop(-1).
I didn't know that, but timing seems to suggest about 50% slower.
Interesting.
Alan G.
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