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Well, suppose I have an array `A' of size `len'. How would you write an algorithm that reverses that array in place, without using any temporary variables, and
by neilc 19y ago
Well, suppose I have an array `A' of size `len'. How would you write an algorithm that reverses that array in place, without using any temporary variables, and that works for arbitrary values of A and len? I think the answer is "you can't". You can't claim to have a solution for the problem if it only works for a fixed input, and if the solution itself would be different for different inputs.
- downer 19y ago> I think the answer is "you can't". That's what I said a few posts ago. > You can't claim to have a solution for the problem if it only works for a > fixed input, and if the solution itself would be different for different > inputs. "Reverse this array". Done. "Reverse an unspecified array of arbitrary length" is a different problem :)