9 lines
347 B
Erlang
9 lines
347 B
Erlang
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-module(e2).
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-export([e2/0, fib_count/4]).
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fib_count(Last, Current, Max, Sum) when Current >= Max -> Sum;
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fib_count(Last, Current, Max, Sum) when Current rem 2 == 0 -> fib_count(Current, Last + Current, Max, Sum + Current);
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fib_count(Last, Current, Max, Sum) -> fib_count(Current, Last + Current, Max, Sum).
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e2() -> fib_count(0, 1, 4000000, 0).
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