002: Add python and elixir solutions

2 files changed, 22 insertions, 0 deletions

diff --git a/002.ex b/002.ex
new file mode 100644
index 0000000..f58cc4c
--- /dev/null
+++ b/002.ex
@@ -0,0 +1,14 @@
+defmodule Fib do
+  def fib(1) do 1 end
+  def fib(2) do 2 end
+  def fib(n) do fib(n - 1) + fib(n - 2) end
+
+  def solve(list, count) do
+    if (n = fib(count)) < 4000000 do
+      [if rem(n, 2) == 0 do n else 0 end | list]
+      |> solve(count + 1)
+    else list end
+  end
+end
+
+IO.puts(Enum.sum(Fib.solve([0], 1)))
diff --git a/002.py b/002.py
new file mode 100644
index 0000000..4edd181
--- /dev/null
+++ b/002.py
@@ -0,0 +1,8 @@
+def fibo(max):
+    a, b = 1, 2
+    while a < max:
+        yield a
+        a, b = b, a + b
+
+
+print(sum(list(filter(lambda n: n % 2 == 0, list(fibo(4000000))))))