Merge pull request #7628 from tylerw/tw/challenge-205

Ch205: solve Tasks 1 & 2 in Clojure

8 files changed, 81 insertions, 8 deletions

diff --git a/challenge-205/tyler-wardhaugh/clojure/README.md b/challenge-205/tyler-wardhaugh/clojure/README.md
index 103893d9b9..b7d0abb1ee 100644
--- a/challenge-205/tyler-wardhaugh/clojure/README.md
+++ b/challenge-205/tyler-wardhaugh/clojure/README.md
@@ -1,6 +1,6 @@
-# c200
+# c205
 
-The Weekly Challenge — #200 — Tyler Wardhaugh
+The Weekly Challenge — #205 — Tyler Wardhaugh
 
 ## Usage
 
@@ -17,12 +17,12 @@ Run Task #1:
 
 Run Task #2:
 
-    $ clojure -M:t2 N
+    $ clojure -M:t2 COLL
     # ... or ...
-    $ bb run task-2 N
+    $ bb run task-2 COLL
 
     # Alternatively, to run it via Babashka:
-    $ bb run task-2-bb N
+    $ bb run task-2-bb COLL
 
 Run the project's tests (which are samples from the task descriptions):
 
diff --git a/challenge-205/tyler-wardhaugh/clojure/bb.edn b/challenge-205/tyler-wardhaugh/clojure/bb.edn
index d7f9593e83..46c9cae858 100644
--- a/challenge-205/tyler-wardhaugh/clojure/bb.edn
+++ b/challenge-205/tyler-wardhaugh/clojure/bb.edn
@@ -1,6 +1,6 @@
 {
  :paths ["src" "resources"]
- :deps {c200/c200 {:local/root "."}}
+ :deps {c205/c205 {:local/root "."}}
 
  :tasks
  {
diff --git a/challenge-205/tyler-wardhaugh/clojure/build.clj b/challenge-205/tyler-wardhaugh/clojure/build.clj
new file mode 100644
index 0000000000..44d02594bf
--- /dev/null
+++ b/challenge-205/tyler-wardhaugh/clojure/build.clj
@@ -0,0 +1,19 @@
+(ns build
+  (:refer-clojure :exclude [test])
+  (:require [org.corfield.build :as bb]))
+
+(def lib 'net.clojars.c205/c205)
+(def version "0.1.0-SNAPSHOT")
+(def main 'c205.c205)
+
+(defn test "Run the tests." [opts]
+  (bb/run-tests opts))
+
+(def clean bb/clean)
+
+(defn ci "Run the CI pipeline of tests (and build the uberjar)." [opts]
+  (-> opts
+      (assoc :lib lib :version version :main main)
+      (bb/run-tests)
+      (bb/clean)
+      (bb/uber)))
diff --git a/challenge-205/tyler-wardhaugh/clojure/deps.edn b/challenge-205/tyler-wardhaugh/clojure/deps.edn
index bcf2a4462e..619d09fa32 100644
--- a/challenge-205/tyler-wardhaugh/clojure/deps.edn
+++ b/challenge-205/tyler-wardhaugh/clojure/deps.edn
@@ -1,8 +1,8 @@
 {:paths ["src" "resources"]
  :deps {org.clojure/clojure {:mvn/version "1.11.1"}}
  :aliases
- {:t1 {:main-opts ["-m" "c200.t1"]}
-  :t2 {:main-opts ["-m" "c200.t2"]}
+ {:t1 {:main-opts ["-m" "c205.t1"]}
+  :t2 {:main-opts ["-m" "c205.t2"]}
   :build {:deps {io.github.seancorfield/build-clj
                  {:git/tag "v0.8.3" :git/sha "7ac1f8d"
                   ;; since we're building an app uberjar, we do not
diff --git a/challenge-205/tyler-wardhaugh/clojure/src/c205/t1.clj b/challenge-205/tyler-wardhaugh/clojure/src/c205/t1.clj
new file mode 100644
index 0000000000..b8d66b63f8
--- /dev/null
+++ b/challenge-205/tyler-wardhaugh/clojure/src/c205/t1.clj
@@ -0,0 +1,17 @@
+(ns c205.t1
+  (:require
+    [clojure.edn :as edn]))
+
+(def DEFAULT-INPUT [[5 4 3]])
+
+(defn third-highest
+  [coll]
+  (let [sorted (->> coll (into (sorted-set-by (comp - compare))) seq)]
+    (nth sorted 2 (first sorted))))
+
+(defn -main
+  "Run Task 1 with a given input COLL, defaulting to the first example from
+  the task description."
+  [& args]
+  (let [[coll] (or (some->> args (map edn/read-string)) DEFAULT-INPUT)]
+    (println (third-highest coll))))
diff --git a/challenge-205/tyler-wardhaugh/clojure/src/c205/t2.clj b/challenge-205/tyler-wardhaugh/clojure/src/c205/t2.clj
new file mode 100644
index 0000000000..6f245b6bab
--- /dev/null
+++ b/challenge-205/tyler-wardhaugh/clojure/src/c205/t2.clj
@@ -0,0 +1,20 @@
+(ns c205.t2
+  (:require
+    [clojure.edn :as edn]))
+
+(def DEFAULT-INPUT [[1 2 3 4 5 6 7]])
+
+(defn max-xor
+  [coll]
+  (let [uniq (set coll)
+        xors (for [x uniq
+                   y (drop 1 uniq)]
+               (bit-xor x y))]
+    (apply max xors)))
+
+(defn -main
+  "Run Task 2 with a given input COLL, defaulting to the first
+  example from the task description."
+  [& args]
+  (let [[coll] (or (some->> args (map edn/read-string)) DEFAULT-INPUT)]
+    (println (max-xor coll))))
diff --git a/challenge-205/tyler-wardhaugh/clojure/test/c205/t1_test.clj b/challenge-205/tyler-wardhaugh/clojure/test/c205/t1_test.clj
new file mode 100644
index 0000000000..3ab163a73e
--- /dev/null
+++ b/challenge-205/tyler-wardhaugh/clojure/test/c205/t1_test.clj
@@ -0,0 +1,9 @@
+(ns c205.t1-test
+  (:require [clojure.test :refer [deftest is testing]]
+            [c205.t1 :refer [third-highest]]))
+
+(deftest task-1
+  (testing "Task 1 produces the correct results from examples in the description"
+    (is (= 3 (third-highest [5 3 4])))
+    (is (= 6 (third-highest [5 6])))
+    (is (= 3 (third-highest [5 4 4 3])))))
diff --git a/challenge-205/tyler-wardhaugh/clojure/test/c205/t2_test.clj b/challenge-205/tyler-wardhaugh/clojure/test/c205/t2_test.clj
new file mode 100644
index 0000000000..af2e00887b
--- /dev/null
+++ b/challenge-205/tyler-wardhaugh/clojure/test/c205/t2_test.clj
@@ -0,0 +1,8 @@
+(ns c205.t2-test
+  (:require [clojure.test :refer [deftest is testing]]
+            [c205.t2 :refer [max-xor]]))
+
+(deftest task-2
+  (testing "Task 2 produces the correct results from examples in the description"
+    (is (= 7 (max-xor [1 2 3 4 5 6 7])))
+    (is (= 15 (max-xor [10 5 7 12 8])))))