finding uncommon elements from 2 array

[goldy1980]

Hi ,
I have two character arrays, I want to get the all the elements from 2nd array which are not in 1st array. Can some one help.



thanks
goldy

[AdrianH]

Hi ,
I have two character arrays, I want to get the all the elements from 2nd array which are not in 1st array. Can some one help.



thanks
goldy

We are here to help, but only those who help themselves (by attempting the work). What have you done so far on the problem? What are you having difficulty with?


Adrian

[weaknessforcats]

Are you able to write down on a piece of paper the steps you would follow to do this with two arrays that are also written on paper?

Often, you can code from a description. It's kind of a poor man's desiogn specification. Rarely, however, can you code straight out of your head.

[Silent1Mezzo]

A quick and dirty way to do it would be to loop through each of the elements in the 2nd array and check each one with all of the elements in the first array. If none of the elements in the first array matches you know it isn't in there.

Theres definately better way's to do this...

[JosAH]

Hi ,
I have two character arrays, I want to get the all the elements from 2nd array which are not in 1st array. Can some one help.



thanks
goldy

If the two arrays aren't sorted all you can do is check every element in array2
and see if it is present in array1; if it is, skip it, if it isn't store it somewhere.
If you're using C++ you can use a vector or list for that purpose and use some
if its fine functionality; if you're using C you're stuck with arrays and a bit of
memory management.

kind regards,

Jos