Jean-Michel Pichavant ha scritto:
Jerry Hill wrote:
On Wed, May 19, 2010 at 3:58 PM, superpollo <ute...@esempio.net> wrote:
... how many positive integers less than n have digits that sum up to m:
...
any suggestion for pythonizin' it?
This is how I would do it:
def prttn(m, n):
"""How many positive integers less than n have digits that sum up
to m"""
total = 0
for testval in range(n):
sumofdigits = sum(int(char) for char in str(testval))
if sumofdigits == m:
total += 1
return total
I added a docstring to the function, saying what it does, and what the
arguments are supposed to represent. I also moved the
convert-to-string-and-sum-the-digits logic into a single generator
expression that's passed to the builtin sum function. Oh, and I tried
to use slightly more expressive variable names.
my favorite solutio nso far.
@ OP
What means prttn ?
i already answered this downthreads...
something ... I don't find the word, something like un-intuitive. Sounds
like homework.
it is not.
--
http://mail.python.org/mailman/listinfo/python-list
