aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Data commit

Browse source
This commit is contained in:
Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Task/Power-set/Erlang/power-set-1.erl Normal file
View file

@ -0,0 +1,5 @@
powerset(Lst) ->
N = length(Lst),
Max = trunc(math:pow(2,N)),
[[lists:nth(Pos+1,Lst) || Pos <- lists:seq(0,N-1), I band (1 bsl Pos) =/= 0]
|| I <- lists:seq(0,Max-1)].

3
Task/Power-set/Erlang/power-set-2.erl Normal file
View file

@ -0,0 +1,3 @@
powerset([]) -> [[]];
powerset([H|T]) -> PT = powerset(T),
[ [H|X] || X <- PT ] ++ PT.

6
Task/Power-set/Erlang/power-set-3.erl Normal file
View file

@ -0,0 +1,6 @@
powerset([]) -> [[]];
powerset([H|T]) -> PT = powerset(T),
powerset(H, PT, PT).
powerset(_, [], Acc) -> Acc;
powerset(X, [H|T], Acc) -> powerset(X, T, [[X|H]|Acc]).