August 21, 2024
P03 - Find the Kth element of a list.
By convention, the first element in the list is element 0.
Example:
> p03:kth([0, 1, 2, 3], 2).
2erlang
%
% Find the Kth element of a list.
%
-module(p03).
-export([kth/2]).
kth([Head | _], 0) ->
Head;
kth([_ | Tail], Index) ->
kth(Tail, Index - 1).
%c(p03).
%p03:kth([1], 0).
%p03:kth([0, 1, 2, 3], 2).
Be first to comment