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Date: Sat, 26 Oct 2013 19:20:33 +0100
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Subject: Re: Check if this basic Python script is coded right
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Xref: csiph.com comp.lang.python:57642

On 26/10/2013 18:36, HC wrote:
> I'm doing my first year in university and I need help with this basic assignment.
>
> Assignment: Write Python script that prints sum of cubes of numbers between 0-200 that are multiples of 3. 3^3+6^3+9^3+12^3....+198^3=?
>
> My script:
> count = 0
> answer = 0
>
> while count<200:
>      if count%3==0:
>          answer = answer + count**3
>      count = count + 1
>
> print ("Result is: " +str(answer))
>
> Is it all okay?
>
Just one small point: the assignment says that the numbers should be in
the range 0-200, but the loop's condition is count<200 it's excluding
200, so the numbers will actually be in the range 0-199.

However, as 200 isn't a multiple of 3, it won't affect the result, but
in another assignment it might.

(For the record, this is known as an "off-by-one" error.)