Anyone? On Sat, Sep 12, 2009 at 11:46 AM, Someone Something <fordhai...@gmail.com>wrote:
> But, I'm returning true or false right? > > On Sat, Sep 12, 2009 at 11:32 AM, MRAB <pyt...@mrabarnett.plus.com> wrote: > >> Someone Something wrote: >> >>> Project euler (in case you don't know: projecteuler.net < >>> http://projecteuler.net>) >>> >>> I'm trying to do the third one and here's my current code: >>> >>> 1 def checkPrime (x): >>> 2 factors=2; >>> 3 while factors<=x: >>> 4 if x==factors: >>> 5 return True; >>> 6 elif x%factors==0: >>> 7 return False; >>> 8 elif x%factors!=0: >>> 9 factors=factors+1; >>> >> >> You're not returning 'factors', so the function will return None. >> >> >> 10 >>> 11 factorl=[]; >>> 12 factors=600851475142; >>> 13 >>> 14 while factors != 1: >>> 15 if 600851475143%factors==0: >>> 16 if checkPrime(factors)==True: >>> 17 print factors; >>> 18 else: >>> 19 factors=factors-1; >>> 20 >>> 21 else: >>> 22 factors=factors-1; >>> 23 >>> >>> And it just gets frozen when I run it. I put a >>> >>> print "Loop completed" >>> >>> in one of the loops and it showed up just fine. So, there are two >>> possibilities: >>> 1. Its looping in the trillions and taking a while >>> 2. I have a forever loop somewhere >>> >>> >> -- >> http://mail.python.org/mailman/listinfo/python-list >> > >
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