fp-in-erlang/exercise-pattern-matching.erl

-module('exercise-pattern-matching').
-export([maxThree/3, howManyEqual/3]).


maxThree(A,B,C) ->
    max(A, max(B, C)).


howManyEqual(A, A, A) ->
    3;
howManyEqual(A, A, _) ->
    2;
howManyEqual(A, _, A) ->
    2;
howManyEqual(_, A, A) ->
    2;
howManyEqual(_, _, _) ->
    0.