
10 Mar
2008
10 Mar
'08
5:39 p.m.
On Mon, Mar 10, 2008 at 10:13 PM, Adrian Hey
(sort [a,b]) in the case we have: (compare a b = EQ)
Which of the following 4 possible results are correct/incorrect? 1- [a,a] 2- [a,b] 3- [b,a] 4- [b,b]
I'd say 2 and 3 are sane, while 2 is correct - because we need stable sort. Stable - this is the keyword! If `==` would mean identity then we wouldn't need a stable sorting algorithm. Christopher Skrzętnicki