haskell 009

haskell/euler009.hs

@@ -0,0 +1,9 @@
+module Main where
+
+is_int num = num == fromInteger (round num)
+
+-- this is a kludge - does haskell let us search an iterator?
+pythagorean_triples = [(a, b, c) | b <- [1..], a <- [1..b], let c = sqrt (a * a + b * b), is_int c && (a + b + c == 1000.0) ]
+
+main = do
+    print $ (\(a, b, c) -> a * b * c) $ last $ take 1 pythagorean_triples