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-module(take). | |
-export([take/2]). | |
-export([take_test/0]). | |
-spec take(integer(), [T]) -> [T]. | |
take(_, []) -> []; | |
take(0, _) -> []; | |
take(N, L) -> take(N, L, []). | |
take(_, [], Ac) -> lists:reverse(Ac); | |
take(0, _, Ac) -> lists:reverse(Ac); | |
take(N, [H|T], Ac) -> take(N-1, T, [H|Ac]). | |
take_test() -> | |
[] = take(0, "hello"), | |
"hell" = take(4, "hello"), | |
"hello" = take(5, "hello"), | |
"hello" = take(9, "hello"), | |
passed. |
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Fixed 👍