[Tutor] Beginner's question

[Peter O'Doherty]

Hi Varun,

Thanks for your reply.
I agree the problem is logic - but how can one inspect one number using 
if x%2 == 0 and then compare it to two other numbers which should at the 
same time be checked for "oddness", just using the basic constructs?

Thanks,
Peter


On 11/22/2012 02:06 PM, Varun Nagpal wrote:
> Hi Peter,
>
> The reason why your program is not behaving as it should is not 
> Pythonic but rather logic.
>
> Instead of giving away the code, I would suggest you revisit the 'and' 
> conditions.
>
> The program should print the largest odd number i.e. the number which 
> is largest among all odd numbers.
> Instead you are printing the number which is largest AND odd.
>
> --
> Varun
>
>
> On Thu, Nov 22, 2012 at 6:25 PM, Peter O'Doherty 
> <mail at peterodoherty.net <mailto:mail at peterodoherty.net>> wrote:
>
>     Hi list,
>     Firstly, apologies for the low-level nature of this question -
>     it's really quite basic but I don't seem to be able to solve it.
>
>     I need to write a program that examines 3 variables x, y, z, and
>     prints the largest odd number. I've tried all sorts of variations
>     and this is the current version:
>
>     x, y, z = 26, 15, 20
>
>     if x > y and x > z and x%2 != 0:
>         print 'x is largest and odd'
>     elif y > x and y > z and y%2 != 0:
>         print 'y is largest and odd'
>     elif z > x and z > y and z%2 != 0:
>         print 'z is largest and odd'
>     else:
>         print 'no odd'
>
>
>     A solution should be possible using only the simple operators and
>     keywords above, no functions, lists or any other form of
>     iteration. (It's from p. 16 of Introduction to Computation and
>     Programming Using Python, and no, it's not "homework"!)
>
>     Many thanks,
>     Peter
>
>
>
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-- 
//=============================
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-> http://www.peterodoherty.net
-> mail at peterodoherty.net
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