remove list elements..

Steve Holden steve at holdenweb.com
Fri Oct 5 17:45:07 CEST 2007


chris.monsanto at gmail.com wrote:
> On Oct 5, 10:27 am, Abandoned <best... at gmail.com> wrote:
>> Hi..
>> I have a problem..
>> list1=[11, 223, 334, 4223...] 1 million element
>> list2=[22,223,4223,2355...] 500.000 element
>>
>> I want to difference list1 to list2 but order very importent..
>>
>> My result must be:
>> list3=[11,334,...]
>>
>> I do this use FOR easly but the speed very imported for me. I want to
>> the fastest method please help me.
>>
>> I'm sorry my bad english.
>>
>> King regards..
> 
> Research the "set" data type. :)
> 
Probably not a very helpful suggestion given that ordering is stated to 
be very important.

regards
  Steve
-- 
Steve Holden        +1 571 484 6266   +1 800 494 3119
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