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September 2017 Update

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Ingy döt Net 2017-09-23 10:01:46 +02:00
parent bba7bfd280
commit ba8067c3b7
14570 changed files with 153136 additions and 63871 deletions
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8
Task/Sorting-algorithms-Quicksort/Erlang/sorting-algorithms-quicksort-2.erl
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@ -1,10 +1,10 @@
quick_sort(L) -> qs(L, erlang:system_info(schedulers)).
quick_sort(L) -> qs(L, trunc(math:log2(erlang:system_info(schedulers)))).
qs([],_) -> [];
qs([H|T], N) when N > 1 ->
qs([H|T], N) when N > 0 ->
{Parent, Ref} = {self(), make_ref()},
spawn(fun()-> Parent ! {l1, Ref, qs([E||E<-T, E<H], N-2)} end),
spawn(fun()-> Parent ! {l2, Ref, qs([E||E<-T, H =< E], N-2)} end),
spawn(fun()-> Parent ! {l1, Ref, qs([E||E<-T, E<H], N-1)} end),
spawn(fun()-> Parent ! {l2, Ref, qs([E||E<-T, H =< E], N-1)} end),
{L1, L2} = receive_results(Ref, undefined, undefined),
L1 ++ [H] ++ L2;
qs([H|T],_) ->