[Haskell] Re: How to substract a list?

Peter Eriksen s022018 at student.dtu.dk
Sun Mar 27 18:26:52 EST 2005

Bright Sun <bright_sun at yahoo.com> writes:

> In Haskell, ++ can spends second list argument onto
> the end of first list argument.  How to substract the
> second list from the first list?
> For example, 
> [(5,1),(4,1),(3,1),(2,1),(1,1)]
> substract
> [(2,1),(1,1)]
> I want to get result list:
> [(5,1),(4,1),(3,1)]

Look at e.g. 


for inspiration



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