move and change

.gitignore

@@ -0,0 +1,2 @@
+build
+*.ibc

Palindrome.idr

@@ -1,17 +0,0 @@
-module Palindrome
-
-palindrome : String -> Bool
-palindrome str = let halfs = splitHalf str in
-                     fst halfs == (reverse (snd halfs))
-  where
-    halfLength : String -> Nat
-    halfLength str = (length str) `div` 2
-
-    splitHalf : String -> (String, String)
-    splitHalf str = let firstHalf = substr 0 (halfLength str) str
-                        startIndex = if even (length str) then halfLength str else halfLength str + 1
-                        secondHalf = substr startIndex (length str) str in
-                        (firstHalf, secondHalf)
-      where
-        even : Nat -> Bool
-        even n = n `mod` 2 == 0

chapter2/Exercises.idr

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+module Exercises
+
+-- 1, 2, 3, 4, 5
+palindrome : Nat -> String -> Bool
+palindrome n str = let halfs = splitHalf (toLower str) in
+                    length str > n && fst halfs == (reverse (snd halfs))
+  where
+    halfLength : String -> Nat
+    halfLength str = (length str) `div` 2
+
+    splitHalf : String -> (String, String)
+    splitHalf str = let firstHalf = substr 0 (halfLength str) str
+                        startIndex = if even (length str) then halfLength str else halfLength str + 1
+                        secondHalf = substr startIndex (length str) str in
+                        (firstHalf, secondHalf)
+      where
+        even : Nat -> Bool
+        even n = n `mod` 2 == 0
+
+-- 6
+counts : String -> (Nat, Nat)
+counts str = (length (words str), length str)
+
+-- 7
+top_ten : Ord a => List a -> List a
+top_ten xs = take 10 (reverse (sort xs))
+
+-- 8
+over_length : Nat -> List String -> Nat
+over_length n xs = let filtered = filter (\str => length str > n) xs in
+                       length filtered
+
+-- 9
+-- not now