On 02/01/2016 13:14, yehudak . wrote:
Vlastimil,
Thank you so much, but...
All that is Chinese for me.
Can you show a 'normal' Python code for me?
Yehuda
On Sat, Jan 2, 2016 at 2:44 PM, Vlastimil Brom <vlastimil.b...@gmail.com>
wrote:
2016-01-02 12:49 GMT+01:00 <katye2...@gmail.com>:
Hi, newbie here!
I'm trying to write a python program to find how many trailing zeros are
in 100! (factorial of 100).
I used factorial from the math module, but my efforts to continue
failed. Please help.
Thank you,
Yehuda
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Hi,
rather an illustration of the available tools in python, than a
(submittable) solution:
import re, math
len(re.search(r"0*$", str(math.factorial(100))).group())
24
[or the same code on more lines with some indentation - if it is
preserved via e-mail]
len(
... re.search(
... r"0*$",
... str(
... math.factorial(100)
... )
... ).group()
... )
24
I.e. You need the length of the string resulting as the match of the
regular expression search for a pattern representing zero or more "0"
at the end of the input text, which is the string version of 100!
Of course, there are other ways to get this result :-)
regards,
vbr
I'll explain it if you stop top posting.
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
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https://mail.python.org/mailman/listinfo/python-list
