add yacht

config.json

@@ -370,6 +370,14 @@
         "prerequisites": [],
         "difficulty": 2
       },
+      {
+        "slug": "yacht",
+        "name": "Yacht",
+        "uuid": "5c2f4d41-79bc-4c86-96ef-f70b2c2993c6",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 2
+      },
       {
         "slug": "allergies",
         "name": "Allergies",

exercises/practice/yacht/.docs/instructions.md

@@ -0,0 +1,30 @@
+# Instructions
+
+Given five dice and a category, calculate the score of the dice for that category.
+
+~~~~exercism/note
+You'll always be presented with five dice.
+Each dice's value will be between one and six inclusively.
+The dice may be unordered.
+~~~~
+
+## Scores in Yacht
+
+| Category        | Score                  | Description                              | Example             |
+| --------------- | ---------------------- | ---------------------------------------- | ------------------- |
+| Ones            | 1 × number of ones     | Any combination                          | 1 1 1 4 5 scores 3  |
+| Twos            | 2 × number of twos     | Any combination                          | 2 2 3 4 5 scores 4  |
+| Threes          | 3 × number of threes   | Any combination                          | 3 3 3 3 3 scores 15 |
+| Fours           | 4 × number of fours    | Any combination                          | 1 2 3 3 5 scores 0  |
+| Fives           | 5 × number of fives    | Any combination                          | 5 1 5 2 5 scores 15 |
+| Sixes           | 6 × number of sixes    | Any combination                          | 2 3 4 5 6 scores 6  |
+| Full House      | Total of the dice      | Three of one number and two of another   | 3 3 3 5 5 scores 19 |
+| Four of a Kind  | Total of the four dice | At least four dice showing the same face | 4 4 4 4 6 scores 16 |
+| Little Straight | 30 points              | 1-2-3-4-5                                | 1 2 3 4 5 scores 30 |
+| Big Straight    | 30 points              | 2-3-4-5-6                                | 2 3 4 5 6 scores 30 |
+| Choice          | Sum of the dice        | Any combination                          | 2 3 3 4 6 scores 18 |
+| Yacht           | 50 points              | All five dice showing the same face      | 4 4 4 4 4 scores 50 |
+
+If the dice do **not** satisfy the requirements of a category, the score is zero.
+If, for example, _Four Of A Kind_ is entered in the _Yacht_ category, zero points are scored.
+A _Yacht_ scores zero if entered in the _Full House_ category.

exercises/practice/yacht/.docs/introduction.md

@@ -0,0 +1,11 @@
+# Introduction
+
+Each year, something new is "all the rage" in your high school.
+This year it is a dice game: [Yacht][yacht].
+
+The game of Yacht is from the same family as Poker Dice, Generala and particularly Yahtzee, of which it is a precursor.
+The game consists of twelve rounds.
+In each, five dice are rolled and the player chooses one of twelve categories.
+The chosen category is then used to score the throw of the dice.
+
+[yacht]: https://en.wikipedia.org/wiki/Yacht_(dice_game)

exercises/practice/yacht/.gitignore

@@ -0,0 +1,11 @@
+## -*- conf -*-
+.rebar3
+_build/
+ebin/
+erl_crash.dump
+rebar3.crashdump
+
+tmp
+bin/configlet
+bin/configlet.exe
+CHECKLIST

exercises/practice/yacht/.meta/config.json

@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "BNAndras"
+  ],
+  "files": {
+    "solution": [
+      "src/yacht.lfe"
+    ],
+    "test": [
+      "test/yacht-tests.lfe"
+    ],
+    "example": [
+      ".meta/example.lfe"
+    ]
+  },
+  "blurb": "Score a single throw of dice in the game Yacht.",
+  "source": "James Kilfiger, using Wikipedia",
+  "source_url": "https://en.wikipedia.org/wiki/Yacht_(dice_game)"
+}

exercises/practice/yacht/.meta/example.lfe

@@ -0,0 +1,56 @@
+(defmodule yacht
+  (export (score 2)))
+
+(include-lib "lfe/include/clj.lfe")
+
+(defun score
+  ((dice 'yacht)
+    (if (=:= (length (lists:uniq dice)) 1) 50 0))
+  ((dice 'ones)
+    (sum dice 1))
+  ((dice 'twos)
+    (sum dice 2))
+  ((dice 'threes)
+    (sum dice 3))
+  ((dice 'fours)
+    (sum dice 4))
+  ((dice 'fives)
+    (sum dice 5))
+  ((dice 'sixes)
+    (sum dice 6))
+  ((dice 'full-house)
+    (if (=:= (lists:sort (maps:values (counter dice))) '(2 3))
+        (lists:sum dice)
+        0))
+  ((dice 'four-of-a-kind)
+    (let ((match (maps:filter (lambda (_ val) (or (=:= val 4)
+                                                    (=:= val 5)))
+                                 (counter dice))))
+      (if (not (clj:empty? match))
+          (* 4 (car (maps:keys match)))
+          0)))
+  ((dice 'little-straight)
+    (if (=:= (lists:sort dice) '(1 2 3 4 5))
+        30
+        0))
+  ((dice 'big-straight)
+    (if (=:= (lists:sort dice) '(2 3 4 5 6))
+        30
+        0))
+  ((dice 'choice)
+    (lists:sum dice))
+  ((_ _)
+    0))
+
+(defun counter (values)
+  (lists:foldl
+    (lambda (val counts)
+      (let ((count (+ 1 (maps:get val counts 0))))
+        (maps:put val count counts)))
+    (map)
+    values))
+
+(defun sum (dice n)
+  (let ((matches (lists:filter (lambda (die) (=:= die n)) dice)))
+    (* n (length matches))))
+

exercises/practice/yacht/.meta/tests.toml

@@ -0,0 +1,97 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[3060e4a5-4063-4deb-a380-a630b43a84b6]
+description = "Yacht"
+
+[15026df2-f567-482f-b4d5-5297d57769d9]
+description = "Not Yacht"
+
+[36b6af0c-ca06-4666-97de-5d31213957a4]
+description = "Ones"
+
+[023a07c8-6c6e-44d0-bc17-efc5e1b8205a]
+description = "Ones, out of order"
+
+[7189afac-cccd-4a74-8182-1cb1f374e496]
+description = "No ones"
+
+[793c4292-dd14-49c4-9707-6d9c56cee725]
+description = "Twos"
+
+[dc41bceb-d0c5-4634-a734-c01b4233a0c6]
+description = "Fours"
+
+[f6125417-5c8a-4bca-bc5b-b4b76d0d28c8]
+description = "Yacht counted as threes"
+
+[464fc809-96ed-46e4-acb8-d44e302e9726]
+description = "Yacht of 3s counted as fives"
+
+[d054227f-3a71-4565-a684-5c7e621ec1e9]
+description = "Fives"
+
+[e8a036e0-9d21-443a-8b5f-e15a9e19a761]
+description = "Sixes"
+
+[51cb26db-6b24-49af-a9ff-12f53b252eea]
+description = "Full house two small, three big"
+
+[1822ca9d-f235-4447-b430-2e8cfc448f0c]
+description = "Full house three small, two big"
+
+[b208a3fc-db2e-4363-a936-9e9a71e69c07]
+description = "Two pair is not a full house"
+
+[b90209c3-5956-445b-8a0b-0ac8b906b1c2]
+description = "Four of a kind is not a full house"
+
+[32a3f4ee-9142-4edf-ba70-6c0f96eb4b0c]
+description = "Yacht is not a full house"
+
+[b286084d-0568-4460-844a-ba79d71d79c6]
+description = "Four of a Kind"
+
+[f25c0c90-5397-4732-9779-b1e9b5f612ca]
+description = "Yacht can be scored as Four of a Kind"
+
+[9f8ef4f0-72bb-401a-a871-cbad39c9cb08]
+description = "Full house is not Four of a Kind"
+
+[b4743c82-1eb8-4a65-98f7-33ad126905cd]
+description = "Little Straight"
+
+[7ac08422-41bf-459c-8187-a38a12d080bc]
+description = "Little Straight as Big Straight"
+
+[97bde8f7-9058-43ea-9de7-0bc3ed6d3002]
+description = "Four in order but not a little straight"
+
+[cef35ff9-9c5e-4fd2-ae95-6e4af5e95a99]
+description = "No pairs but not a little straight"
+
+[fd785ad2-c060-4e45-81c6-ea2bbb781b9d]
+description = "Minimum is 1, maximum is 5, but not a little straight"
+
+[35bd74a6-5cf6-431a-97a3-4f713663f467]
+description = "Big Straight"
+
+[87c67e1e-3e87-4f3a-a9b1-62927822b250]
+description = "Big Straight as little straight"
+
+[c1fa0a3a-40ba-4153-a42d-32bc34d2521e]
+description = "No pairs but not a big straight"
+
+[207e7300-5d10-43e5-afdd-213e3ac8827d]
+description = "Choice"
+
+[b524c0cf-32d2-4b40-8fb3-be3500f3f135]
+description = "Yacht as choice"

exercises/practice/yacht/Makefile

@@ -0,0 +1,21 @@
+ERL    := $(shell which erl)
+REBAR3 := $(shell which rebar3)
+
+null  :=
+space := $(null) #
+comma := ,
+
+ifeq ($(ERL),)
+  $(error Can't find Erlang executable 'erl')
+else ifeq ($(REBAR3),)
+  $(error Can't find rebar3)
+endif
+
+compile: ; $(REBAR3) compile
+
+clean: ; $(REBAR3) clean
+
+.PHONY: test
+test:
+	$(REBAR3) eunit \
+	-m $(subst $(space),$(comma),$(basename $(notdir $(wildcard test/*.lfe))))

exercises/practice/yacht/rebar.config

@@ -0,0 +1,11 @@
+{plugins, [{rebar3_lfe, "0.4.10"}]}.
+
+{provider_hooks, [{post, [{compile, {lfe, compile}}]}]}.
+
+{deps, [{lfe, "2.1.3"}]}.
+
+{profiles,
+ [{test,
+   [{eunit_compile_opts, [{src_dirs, ["src", "test"]}]},
+    {deps,
+     [{ltest, "0.13.8"}]}]}]}.

exercises/practice/yacht/rebar.lock

@@ -0,0 +1,8 @@
+{"1.2.0",
+[{<<"lfe">>,{pkg,<<"lfe">>,<<"2.1.3">>},0}]}.
+[
+{pkg_hash,[
+ {<<"lfe">>, <<"6EFCB2BBC1FFC21DC5D1C092F00EFDB397EAC889474AC5C86EDF78A3557CC730">>}]},
+{pkg_hash_ext,[
+ {<<"lfe">>, <<"4E4BAD515A169AE418FEB7374EA1C8D741FAEA9D95E266CE343B45BCC377F55B">>}]}
+].

exercises/practice/yacht/src/yacht.app.src

@@ -0,0 +1,11 @@
+%% -*- erlang -*-
+{application, 'yacht',
+ [{description, "a"},
+  {vsn, "0.0.1"},
+  {modules,
+   ['yacht']},
+  {registered, []},
+  {applications,
+   [kernel, stdlib]},
+  {included_applications, []},
+  {env, []}]}.

exercises/practice/yacht/src/yacht.lfe

@@ -0,0 +1,5 @@
+(defmodule yacht
+  (export (score 2)))
+
+  ; Please implement the `score` function
+

exercises/practice/yacht/test/yacht-tests.lfe

@@ -0,0 +1,93 @@
+(defmodule yacht-tests
+  (behaviour ltest-unit)
+  (export all))
+
+(include-lib "ltest/include/ltest-macros.lfe")
+
+(deftest yacht
+  (is-equal 50 (yacht:score '(5 5 5 5 5) 'yacht)))
+
+(deftest not-yacht
+  (is-equal 0 (yacht:score '(1 3 3 2 5) 'yacht)))
+
+(deftest ones
+  (is-equal 3 (yacht:score '(1 1 1 3 5) 'ones)))
+
+(deftest ones-out-of-order
+  (is-equal 3 (yacht:score '(3 1 1 5 1) 'ones)))
+
+(deftest no-ones
+  (is-equal 0 (yacht:score '(4 3 6 5 5) 'ones)))
+
+(deftest twos
+  (is-equal 2 (yacht:score '(2 3 4 5 6) 'twos)))
+
+(deftest fours
+  (is-equal 8 (yacht:score '(1 4 1 4 1) 'fours)))
+
+(deftest yacht-counted-as-threes
+  (is-equal 15 (yacht:score '(3 3 3 3 3) 'threes)))
+
+(deftest yacht-of-threes-counted-as-fives
+  (is-equal 0 (yacht:score '(3 3 3 3 3) 'fives)))
+
+(deftest fives
+  (is-equal 10 (yacht:score '(1 5 3 5 3) 'fives)))
+
+(deftest sixes
+  (is-equal 6 (yacht:score '(2 3 4 5 6) 'sixes)))
+
+(deftest full-house-two-small-three-big
+  (is-equal 16 (yacht:score '(2 2 4 4 4) 'full-house)))
+
+(deftest full-house-three-small-two-big
+  (is-equal 19 (yacht:score '(5 3 3 5 3) 'full-house)))
+
+(deftest two-pair-is-not-a-full-house
+  (is-equal 0 (yacht:score '(2 2 4 4 5) 'full-house)))
+
+(deftest four-of-a-kind-is-not-a-full-house
+  (is-equal 0 (yacht:score '(1 4 4 4 4) 'full-house)))
+
+(deftest yacht-is-not-a-full-house
+  (is-equal 0 (yacht:score '(2 2 2 2 2) 'full-house)))
+
+(deftest four-of-a-kind
+  (is-equal 24 (yacht:score '(6 6 4 6 6) 'four-of-a-kind)))
+
+(deftest yacht-can-be-scored-as-four-of-a-kind
+  (is-equal 12 (yacht:score '(3 3 3 3 3) 'four-of-a-kind)))
+
+(deftest full-house-is-not-four-of-a-kind
+  (is-equal 0 (yacht:score '(3 3 3 5 5) 'four-of-a-kind)))
+
+(deftest little-straight
+  (is-equal 30 (yacht:score '(3 5 4 1 2) 'little-straight)))
+
+(deftest little-straight-as-big-straight
+  (is-equal 0 (yacht:score '(1 2 3 4 5) 'big-straight)))
+
+(deftest four-in-order-but-not-a-little-straight
+  (is-equal 0 (yacht:score '(1 1 2 3 4) 'little-straight)))
+
+(deftest no-pairs-but-not-a-little-straight
+  (is-equal 0 (yacht:score '(1 2 3 4 6) 'little-straight)))
+
+(deftest minimum-is-1-maximum-is-5-but-not-a-little-straight
+  (is-equal 0 (yacht:score '(1 1 3 4 5) 'little-straight)))
+
+(deftest big-straight
+  (is-equal 30 (yacht:score '(4 6 2 5 3) 'big-straight)))
+
+(deftest big-straight-as-little-straight
+  (is-equal 0 (yacht:score '(6 5 4 3 2) 'little-straight)))
+
+(deftest no-pairs-but-not-a-big-straight
+  (is-equal 0 (yacht:score '(6 5 4 3 1) 'big-straight)))
+
+(deftest choice
+  (is-equal 23 (yacht:score '(3 3 5 6 6) 'choice)))
+
+(deftest yacht-as-choice
+  (is-equal 10 (yacht:score '(2 2 2 2 2) 'choice)))
+