[Exercise]: added square-root (#3279)

* added square-root

* Instruction Append

Co-authored-by: BethanyG <[email protected]>

config.json

@@ -593,6 +593,19 @@
         ],
         "difficulty": 2
       },
+      {
+        "slug": "square-root",
+        "name": "Square Root",
+        "uuid": "c32f994a-1080-4f05-bf88-051975a75d64",
+        "practices": ["number"],
+        "prerequisites": [
+          "basics",
+          "number",
+          "conditionals",
+          "loops"
+        ],
+        "difficulty": 2
+      },
       {
         "slug": "scrabble-score",
         "name": "Scrabble Score",

exercises/practice/square-root/.docs/instructions.append.md

@@ -0,0 +1,16 @@
+# Instructions append
+
+## How this Exercise is Structured in Python
+
+
+Python offers a wealth of mathematical functions in the form of the [math module][math-module] and built-ins such as [`pow()`][pow] and [`sum()`][sum].
+However, we'd like you to consider the challenge of solving this exercise without those built-ins or modules.
+
+While there is a mathematical formula that will find the square root of _any_ number, we have gone the route of only testing [natural numbers][nautral-number] (positive integers).
+
+
+[math-module]: https://docs.python.org/3/library/math.html
+[pow]: https://docs.python.org/3/library/functions.html#pow
+[sum]: https://docs.python.org/3/library/functions.html#sum
+[nautral-number]: https://en.wikipedia.org/wiki/Natural_number
+

exercises/practice/square-root/.docs/instructions.md

@@ -0,0 +1,13 @@
+# Instructions
+
+Given a natural radicand, return its square root.
+
+Note that the term "radicand" refers to the number for which the root is to be determined.
+That is, it is the number under the root symbol.
+
+Check out the Wikipedia pages on [square root][square-root] and [methods of computing square roots][computing-square-roots].
+
+Recall also that natural numbers are positive real whole numbers (i.e. 1, 2, 3 and up).
+
+[square-root]: https://en.wikipedia.org/wiki/Square_root
+[computing-square-roots]: https://en.wikipedia.org/wiki/Methods_of_computing_square_roots

exercises/practice/square-root/.meta/config.json

@@ -0,0 +1,21 @@
+{
+  "authors": [
+    "meatball133",
+    "Bethanyg"
+  ],
+  "contributors": [],
+  "files": {
+    "solution": [
+      "square_root.py"
+    ],
+    "test": [
+      "square_root_test.py"
+    ],
+    "example": [
+      ".meta/example.py"
+    ]
+  },
+  "blurb": "Given a natural radicand, return its square root.",
+  "source": "wolf99",
+  "source_url": "https://github.com/exercism/problem-specifications/pull/1582"
+}

exercises/practice/square-root/.meta/example.py

@@ -0,0 +1,5 @@
+def square_root(number):
+    n = 0
+    while n ** 2 != number:
+        n += 1
+    return n

exercises/practice/square-root/.meta/template.j2

@@ -0,0 +1,15 @@
+{%- import "generator_macros.j2" as macros with context -%}
+{% macro test_case(case) -%}
+    {%- set input = case["input"] -%}
+    def test_{{ case["description"] | to_snake }}(self):
+        self.assertEqual(
+            {{ case["property"] | to_snake }}({{ case["input"]["radicand"] }}),
+            {{ case["expected"] }}
+        )
+{%- endmacro %}
+{{ macros.header()}}
+
+class {{ exercise | camel_case }}Test(unittest.TestCase):
+    {% for case in cases -%}
+        {{ test_case(case) }}
+    {% endfor %}

exercises/practice/square-root/.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.
+
+[9b748478-7b0a-490c-b87a-609dacf631fd]
+description = "root of 1"
+
+[7d3aa9ba-9ac6-4e93-a18b-2e8b477139bb]
+description = "root of 4"
+
+[6624aabf-3659-4ae0-a1c8-25ae7f33c6ef]
+description = "root of 25"
+
+[93beac69-265e-4429-abb1-94506b431f81]
+description = "root of 81"
+
+[fbddfeda-8c4f-4bc4-87ca-6991af35360e]
+description = "root of 196"
+
+[c03d0532-8368-4734-a8e0-f96a9eb7fc1d]
+description = "root of 65025"

exercises/practice/square-root/square_root.py

@@ -0,0 +1,2 @@
+def square_root(number):
+    pass

exercises/practice/square-root/square_root_test.py

@@ -0,0 +1,27 @@
+import unittest
+
+from square_root import (
+    square_root,
+)
+
+# Tests adapted from `problem-specifications//canonical-data.json`
+
+
+class SquareRootTest(unittest.TestCase):
+    def test_root_of_1(self):
+        self.assertEqual(square_root(1), 1)
+
+    def test_root_of_4(self):
+        self.assertEqual(square_root(4), 2)
+
+    def test_root_of_25(self):
+        self.assertEqual(square_root(25), 5)
+
+    def test_root_of_81(self):
+        self.assertEqual(square_root(81), 9)
+
+    def test_root_of_196(self):
+        self.assertEqual(square_root(196), 14)
+
+    def test_root_of_65025(self):
+        self.assertEqual(square_root(65025), 255)