haskell 002

2020-10-26 22:42:26 -07:00 · 2020-10-26 22:42:26 -07:00 · b2e1e06499
parent 46b96327d5
commit b2e1e06499
1 changed files with 6 additions and 0 deletions
--- a/haskell/euler002.hs
+++ b/haskell/euler002.hs
@ -0,0 +1,6 @@
+module Main where
+
+fibonacci = map fst (iterate (\(n, m) -> (m, n+m)) (0, 1))
+
+main = do
+    print (sum (filter even (takeWhile (<4000000) fibonacci)))