Add reverse-string

exercism · Jan 24, 2024 · 83e5e66 · 83e5e66
1 parent deb10ca
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Showing 13 changed files with 191 additions and 58 deletions.
diff --git a/config.json b/config.json
@@ -36,7 +36,6 @@
     ]
   },
   "exercises": {
-    "concept": [],
     "practice": [
       {
         "slug": "hello-world",
@@ -56,7 +55,6 @@
         "practices": [],
         "prerequisites": [],
         "difficulty": 1,
-        "topics": null,
         "status": "deprecated"
       },
       {
@@ -65,44 +63,39 @@
         "uuid": "68eec796-a269-4e66-84b5-e26574ff614e",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "anagram",
         "name": "Anagram",
         "uuid": "9bc1f720-ccd0-449f-99a7-1790b30690f1",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "atbash-cipher",
         "name": "Atbash Cipher",
         "uuid": "78c7360b-1460-4f16-8efe-5efcbd2cb863",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "bank-account",
         "name": "Bank Account",
         "uuid": "b5091e1d-c950-4cad-b583-c6b90c50c02e",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "beer-song",
         "name": "Beer Song",
         "uuid": "b3581dfe-27c4-4356-a1d9-1e13759db736",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "binary",
@@ -121,26 +114,23 @@
         "uuid": "58764b96-7033-45f2-90a6-dd5e41a27ede",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "circular-buffer",
         "name": "Circular Buffer",
         "uuid": "ea131235-e238-4c8a-98b2-bb6191a89312",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "clock",
         "name": "Clock",
         "uuid": "0a75c71e-b634-4b49-b374-718528e21075",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "difference-of-squares",
@@ -159,44 +149,39 @@
         "uuid": "049c088d-a0e6-4a19-8040-0a470c838e42",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "gigasecond",
         "name": "Gigasecond",
         "uuid": "63099375-19fa-462f-9e82-960508c229a4",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "grade-school",
         "name": "Grade School",
         "uuid": "d9013304-cc50-4a56-a645-51c4a80f1c82",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "grains",
         "name": "Grains",
         "uuid": "0669f6eb-f740-431e-a4fc-70bc3d4cf498",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "hamming",
         "name": "Hamming",
         "uuid": "8583b88b-03e4-4bba-bc7b-767f2298d67e",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "largest-series-product",
@@ -215,98 +200,87 @@
         "uuid": "5617bcf3-dc58-437a-8e56-56d04ff8ddfb",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "luhn",
         "name": "Luhn",
         "uuid": "ee67a9ed-aad7-49db-bb00-a09925e48ffa",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "meetup",
         "name": "Meetup",
         "uuid": "1a93aacc-160f-4121-b03a-742e20f7c073",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "nucleotide-count",
         "name": "Nucleotide Count",
         "uuid": "9b1ae897-b15d-4180-af45-1c69f98a8f34",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "parallel-letter-frequency",
         "name": "Parallel Letter Frequency",
         "uuid": "b41a9294-5d21-49f2-9c7e-9506662a80d2",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "phone-number",
         "name": "Phone Number",
         "uuid": "c1e07140-0566-4b50-aca1-3eddaa87d4d2",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "rna-transcription",
         "name": "RNA Transcription",
         "uuid": "8db0d097-9758-4671-81ff-fd8111c4fd7d",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "robot-simulator",
         "name": "Robot Simulator",
         "uuid": "88c6dbe6-f672-4dba-950c-483e55ebd252",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "series",
         "name": "Series",
         "uuid": "f2ca089e-66db-4b85-8275-5932952a36bf",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "space-age",
         "name": "Space Age",
         "uuid": "dfb7c4aa-dc52-4973-8c50-f5153ab51406",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "strain",
         "name": "Strain",
         "uuid": "fe975ff0-e374-44c9-910b-740cc3cff4ad",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
       },
       {
         "slug": "sum-of-multiples",
@@ -336,12 +310,18 @@
         "uuid": "5fca0d45-2bf5-486e-9c57-25cff5e4a9c5",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
-        "topics": null
+        "difficulty": 1
+      },
+      {
+        "slug": "reverse-string",
+        "name": "Reverse String",
+        "uuid": "a6a5838c-f35c-4fd2-ab80-62d6a61dd6b3",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 2
       }
     ]
   },
-  "concepts": [],
   "key_features": [
     {
       "title": "Core Erlang Foundation",
@@ -375,14 +355,14 @@
     }
   ],
   "tags": [
-    "paradigm/functional",
-    "typing/dynamic",
-    "typing/strong",
     "execution_mode/compiled",
-    "platform/windows",
-    "platform/mac",
+    "paradigm/functional",
     "platform/linux",
+    "platform/mac",
+    "platform/windows",
     "runtime/beam",
+    "typing/dynamic",
+    "typing/strong",
     "used_for/backends",
     "used_for/scripts"
   ]

diff --git a/exercises/practice/reverse-string/.docs/instructions.md b/exercises/practice/reverse-string/.docs/instructions.md
@@ -0,0 +1,9 @@
+# Instructions
+
+Your task is to reverse a given string.
+
+Some examples:
+
+- Turn `"stressed"` into `"desserts"`.
+- Turn `"strops"` into `"sports"`.
+- Turn `"racecar"` into `"racecar"`.
diff --git a/exercises/practice/reverse-string/.docs/introduction.md b/exercises/practice/reverse-string/.docs/introduction.md
@@ -0,0 +1,5 @@
+# Introduction
+
+Reversing strings (reading them from right to left, rather than from left to right) is a surprisingly common task in programming.
+
+For example, in bioinformatics, reversing the sequence of DNA or RNA strings is often important for various analyses, such as finding complementary strands or identifying palindromic sequences that have biological significance.
diff --git a/exercises/practice/reverse-string/.gitignore b/exercises/practice/reverse-string/.gitignore
@@ -0,0 +1,11 @@
+## -*- conf -*-
+.rebar3
+_build/
+ebin/
+erl_crash.dump
+rebar3.crashdump
+
+tmp
+bin/configlet
+bin/configlet.exe
+CHECKLIST
diff --git a/exercises/practice/reverse-string/.meta/config.json b/exercises/practice/reverse-string/.meta/config.json
@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "BNAndras"
+  ],
+  "files": {
+    "solution": [
+      "src/reverse-string.lfe"
+    ],
+    "test": [
+      "test/reverse-string-tests.lfe"
+    ],
+    "example": [
+      "src/example.lfe"
+    ]
+  },
+  "blurb": "Reverse a given string.",
+  "source": "Introductory challenge to reverse an input string",
+  "source_url": "https://medium.freecodecamp.org/how-to-reverse-a-string-in-javascript-in-3-different-ways-75e4763c68cb"
+}
diff --git a/exercises/practice/reverse-string/.meta/example.lfe b/exercises/practice/reverse-string/.meta/example.lfe
@@ -0,0 +1,5 @@
+(defmodule reverse
+  (export (string 1)))
+
+(defun string (str)
+    (lists:reverse str))
diff --git a/exercises/practice/reverse-string/.meta/tests.toml b/exercises/practice/reverse-string/.meta/tests.toml
@@ -0,0 +1,28 @@
+# 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.
+
+[c3b7d806-dced-49ee-8543-933fd1719b1c]
+description = "an empty string"
+
+[01ebf55b-bebb-414e-9dec-06f7bb0bee3c]
+description = "a word"
+
+[0f7c07e4-efd1-4aaa-a07a-90b49ce0b746]
+description = "a capitalized word"
+
+[71854b9c-f200-4469-9f5c-1e8e5eff5614]
+description = "a sentence with punctuation"
+
+[1f8ed2f3-56f3-459b-8f3e-6d8d654a1f6c]
+description = "a palindrome"
+
+[b9e7dec1-c6df-40bd-9fa3-cd7ded010c4c]
+description = "an even-sized word"