From 1415aea290225eff021551c15db542846feda437 Mon Sep 17 00:00:00 2001
From: leaen <mossbanay@gmail.com>
Date: Tue, 29 Oct 2019 08:20:12 +1100
Subject: [PATCH] Exercises for I am a horse in the land of booleans

---
 src/i_am_a_horse_in_the_land_of_booleans.clj | 33 +++++++++++++++-----
 1 file changed, 25 insertions(+), 8 deletions(-)

diff --git a/src/i_am_a_horse_in_the_land_of_booleans.clj b/src/i_am_a_horse_in_the_land_of_booleans.clj
index 66a18e7a..c8f9095e 100644
--- a/src/i_am_a_horse_in_the_land_of_booleans.clj
+++ b/src/i_am_a_horse_in_the_land_of_booleans.clj
@@ -2,27 +2,44 @@
   (:refer-clojure :exclude [boolean]))
 
 (defn boolean [x]
-  ":(")
+  (if x true false))
 
 (defn abs [x]
-  ":(")
+  (if (> x 0)
+    x
+    (- x)))
 
 (defn divides? [divisor n]
-  ":(")
+  (== (mod n divisor) 0))
 
 (defn fizzbuzz [n]
-  ":(")
+  (cond
+    (divides? 15 n) "gotcha!"
+    (divides? 3 n)  "fizz"
+    (divides? 5 n)  "buzz"
+    :else           ""
+    ))
 
 (defn teen? [age]
-  ":(")
+  (< 12 age 20))
 
 (defn not-teen? [age]
-  ":(")
+  (not (teen? age)))
 
 (defn generic-doublificate [x]
-  ":(")
+  (cond
+    (number? x) (* 2 x)
+    (empty? x) nil
+    (or (list? x) (vector? x)) (* (count x) 2)
+    :else true
+    ))
 
 (defn leap-year? [year]
-  ":(")
+  (cond
+    (divides? 400 year) true
+    (divides? 100 year) false
+    (divides? 4 year) true
+    :else false
+   ))
 
 ; '_______'