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glennjglennj
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Armstrong (#6)
* armstrong-numbers * streamline jq in workflow
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11 files changed

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.github/workflows/pr.yml.not_active renamed to .github/workflows/pr.yml

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@@ -28,9 +28,9 @@ jobs:
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pr_endpoint=$(jq -r '"repos/\(.repository.full_name)/pulls/\(.pull_request.number)"' "$GITHUB_EVENT_PATH")
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gh api "$pr_endpoint/files" --paginate --jq '
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map(
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select(.filename | match("\\.odin$")) |
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.filename |
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match("exercises/practice/([^/]+)/") |
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.captures[0].string
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.filename
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| select(match("\\.moon$"))
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| match("exercises/practice/([^/]+)/")
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| .captures[0].string
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) | unique[]
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' | xargs -r -L1 bin/test-one

‎canonical-data/armstrong-numbers.json‎

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{
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"exercise": "armstrong-numbers",
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"cases": [
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{
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"uuid": "c1ed103c-258d-45b2-be73-d8c6d9580c7b",
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"description": "Zero is an Armstrong number",
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"property": "isArmstrongNumber",
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"input": {
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"number": 0
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},
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"expected": true
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},
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{
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"uuid": "579e8f03-9659-4b85-a1a2-d64350f6b17a",
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"description": "Single-digit numbers are Armstrong numbers",
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"property": "isArmstrongNumber",
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"input": {
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"number": 5
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},
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"expected": true
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},
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{
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"uuid": "2d6db9dc-5bf8-4976-a90b-b2c2b9feba60",
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"description": "There are no two-digit Armstrong numbers",
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"property": "isArmstrongNumber",
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"input": {
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"number": 10
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},
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"expected": false
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},
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{
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"uuid": "509c087f-e327-4113-a7d2-26a4e9d18283",
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"description": "Three-digit number that is an Armstrong number",
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"property": "isArmstrongNumber",
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"input": {
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"number": 153
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},
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"expected": true
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},
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{
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"uuid": "7154547d-c2ce-468d-b214-4cb953b870cf",
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"description": "Three-digit number that is not an Armstrong number",
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"property": "isArmstrongNumber",
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"input": {
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"number": 100
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},
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"expected": false
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},
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{
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"uuid": "6bac5b7b-42e9-4ecb-a8b0-4832229aa103",
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"description": "Four-digit number that is an Armstrong number",
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"property": "isArmstrongNumber",
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"input": {
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"number": 9474
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},
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"expected": true
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},
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{
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"uuid": "eed4b331-af80-45b5-a80b-19c9ea444b2e",
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"description": "Four-digit number that is not an Armstrong number",
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"property": "isArmstrongNumber",
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"input": {
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"number": 9475
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},
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"expected": false
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},
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{
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"uuid": "f971ced7-8d68-4758-aea1-d4194900b864",
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"description": "Seven-digit number that is an Armstrong number",
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"property": "isArmstrongNumber",
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"input": {
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"number": 9926315
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},
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"expected": true
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},
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{
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"uuid": "7ee45d52-5d35-4fbd-b6f1-5c8cd8a67f18",
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"description": "Seven-digit number that is not an Armstrong number",
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"property": "isArmstrongNumber",
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"input": {
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"number": 9926314
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},
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"expected": false
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},
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{
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"uuid": "5ee2fdf8-334e-4a46-bb8d-e5c19c02c148",
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"description": "Armstrong number containing seven zeroes",
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"comments": [
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"The numeric size of this input number is 108 bits. Consider skipping this test if appropriate."
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],
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"scenarios": ["big-integer"],
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"property": "isArmstrongNumber",
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"input": {
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"number": 186709961001538790100634132976990
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},
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"expected": true
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},
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{
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"uuid": "12ffbf10-307a-434e-b4ad-c925680e1dd4",
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"description": "The largest and last Armstrong number",
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"comments": [
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"The numeric size of this input number is 127 bits. Consider skipping this test if appropriate."
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],
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"scenarios": ["big-integer"],
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"property": "isArmstrongNumber",
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"input": {
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"number": 115132219018763992565095597973971522401
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},
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"expected": true
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}
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]
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}

‎config.json‎

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"practices": [],
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"prerequisites": [],
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"difficulty": 1
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},
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{
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"slug": "armstrong-numbers",
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"name": "Armstrong Numbers",
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"uuid": "a9cc7677-4151-4e3b-b08a-be547a56d705",
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"practices": [],
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"prerequisites": [],
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"difficulty": 2
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}
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]
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},

‎exercises/practice/armstrong-numbers/.busted‎

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return {
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default = {
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ROOT = { '.' }
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}
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}

‎exercises/practice/armstrong-numbers/.docs/instructions.md‎

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# Instructions
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An [Armstrong number][armstrong-number] is a number that is the sum of its own digits each raised to the power of the number of digits.
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For example:
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- 9 is an Armstrong number, because `9 = 9^1 = 9`
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- 10 is _not_ an Armstrong number, because `10 != 1^2 + 0^2 = 1`
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- 153 is an Armstrong number, because: `153 = 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153`
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- 154 is _not_ an Armstrong number, because: `154 != 1^3 + 5^3 + 4^3 = 1 + 125 + 64 = 190`
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Write some code to determine whether a number is an Armstrong number.
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[armstrong-number]: https://en.wikipedia.org/wiki/Narcissistic_number

‎exercises/practice/armstrong-numbers/.meta/config.json‎

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{
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"authors": [
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"glennj"
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],
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"files": {
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"solution": [
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"armstrong_numbers.moon"
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],
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"test": [
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"armstrong_numbers_spec.moon"
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],
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"example": [
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".meta/example.moon"
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]
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},
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"blurb": "Determine if a number is an Armstrong number.",
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"source": "Wikipedia",
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"source_url": "https://en.wikipedia.org/wiki/Narcissistic_number"
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}

‎exercises/practice/armstrong-numbers/.meta/example.moon‎

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armstrong_sum = (n) ->
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width = #tostring(n)
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sum = 0
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while n > 0
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sum += (n % 10) ^ width
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n = n // 10
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sum
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is_armstrong = (n) -> n == armstrong_sum n
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{ :is_armstrong }

‎exercises/practice/armstrong-numbers/.meta/spec_generator.moon‎

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{
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module_name: 'ArmstrongNumbers',
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generate_test: (case, level) ->
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lines = {
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"result = ArmstrongNumbers.is_armstrong #{case.input.number}",
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"assert.is_#{case.expected} result"
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}
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table.concat [indent line, level for line in *lines], '\n'
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}

‎exercises/practice/armstrong-numbers/.meta/tests.toml‎

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# This is an auto-generated file.
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#
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# Regenerating this file via `configlet sync` will:
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# - Recreate every `description` key/value pair
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# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
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# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
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# - Preserve any other key/value pair
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#
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# As user-added comments (using the # character) will be removed when this file
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# is regenerated, comments can be added via a `comment` key.
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[c1ed103c-258d-45b2-be73-d8c6d9580c7b]
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description = "Zero is an Armstrong number"
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[579e8f03-9659-4b85-a1a2-d64350f6b17a]
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description = "Single-digit numbers are Armstrong numbers"
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[2d6db9dc-5bf8-4976-a90b-b2c2b9feba60]
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description = "There are no two-digit Armstrong numbers"
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[509c087f-e327-4113-a7d2-26a4e9d18283]
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description = "Three-digit number that is an Armstrong number"
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[7154547d-c2ce-468d-b214-4cb953b870cf]
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description = "Three-digit number that is not an Armstrong number"
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[6bac5b7b-42e9-4ecb-a8b0-4832229aa103]
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description = "Four-digit number that is an Armstrong number"
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[eed4b331-af80-45b5-a80b-19c9ea444b2e]
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description = "Four-digit number that is not an Armstrong number"
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[f971ced7-8d68-4758-aea1-d4194900b864]
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description = "Seven-digit number that is an Armstrong number"
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[7ee45d52-5d35-4fbd-b6f1-5c8cd8a67f18]
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description = "Seven-digit number that is not an Armstrong number"
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[5ee2fdf8-334e-4a46-bb8d-e5c19c02c148]
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description = "Armstrong number containing seven zeroes"
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[12ffbf10-307a-434e-b4ad-c925680e1dd4]
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description = "The largest and last Armstrong number"

‎exercises/practice/armstrong-numbers/armstrong_numbers.moon‎

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is_armstrong = (num) ->
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error "Implement me!"
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{ :is_armstrong }
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