Initial data commit

Task/Knapsack-problem-Continuous/Haskell/knapsack-problem-continuous-2.hs

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+import Data.List (sortBy)
+import Data.Ord (comparing)
+import Text.Printf (printf)
+
+-- (name, (value, weight))
+items =
+  [ ("beef", (36, 3.8))
+  , ("pork", (43, 5.4))
+  , ("ham", (90, 3.6))
+  , ("greaves", (45, 2.4))
+  , ("flitch", (30, 4.0))
+  , ("brawn", (56, 2.5))
+  , ("welt", (67, 3.7))
+  , ("salami", (95, 3.0))
+  , ("sausage", (98, 5.9))
+  ]
+
+unitWeight (_, (val, weight)) = fromIntegral val / weight
+
+solution k = loop k . sortBy (flip $ comparing unitWeight)
+  where
+    loop k ((name, (_, weight)):xs)
+      | weight < k = putStrLn ("Take all the " ++ name) >> loop (k - weight) xs
+      | otherwise = printf "Take %.2f kg of the %s\n" (k :: Float) name
+
+main = solution 15 items