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-rwxr-xr-xproblem10.erl34
1 files changed, 34 insertions, 0 deletions
diff --git a/problem10.erl b/problem10.erl
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--- /dev/null
+++ b/problem10.erl
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+-module(problem10).
+-export([solve/0]).
+
+solve() -> gen_list([2,3],2000000).
+
+gen_list(List,Max) ->
+ O = gen_next(List),
+ if
+ O > Max ->
+ lists:sum(List);
+ true ->
+ gen_list(List++[O],Max)
+ end.
+
+gen_next(List) ->
+ gen_next(List, lists:max(List) + 1).
+gen_next(List, Next) ->
+ Q = will_divide(Next, List),
+ if
+ Q ->
+ gen_next(List, Next + 1);
+ true ->
+ Next
+ end.
+
+will_divide(_, []) ->
+ false;
+will_divide(Num, [H|T]) ->
+ if
+ Num rem H =:= 0 ->
+ true;
+ true ->
+ will_divide(Num, T)
+ end.