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Add practice exercise: say (#133)
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‎config.json

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"prerequisites": [],
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"difficulty": 8
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},
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{
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"slug": "say",
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"name": "Say",
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"uuid": "5b643efe-e63b-4598-95f8-a4cb319107de",
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"practices": [],
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"prerequisites": [],
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"difficulty": 8
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},
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{
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"slug": "scrabble-score",
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"name": "Scrabble Score",

‎exercises/practice/say/.docs/instructions.md

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# Instructions
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Given a number, your task is to express it in English words exactly as your friend should say it out loud.
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Yaʻqūb expects to use numbers from 0 up to 999,999,999,999.
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Examples:
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- 0 → zero
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- 1 → one
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- 12 → twelve
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- 123 → one hundred twenty-three
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- 1,234 → one thousand two hundred thirty-four

‎exercises/practice/say/.docs/introduction.md

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# Introduction
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Your friend Yaʻqūb works the counter at the busiest deli in town, slicing, weighing, and wrapping orders for a never-ending line of hungry customers.
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To keep things moving, each customer takes a numbered ticket when they arrive.
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When it’s time to call the next person, Yaʻqūb reads their number out loud, always in full English words to make sure everyone hears it clearly.

‎exercises/practice/say/.meta/config.json

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{
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"authors": [
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"jimmytty"
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],
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"files": {
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"solution": [
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"say.sql"
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],
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"test": [
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"say_test.sql"
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],
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"example": [
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".meta/example.sql"
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]
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},
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"blurb": "Given a number from 0 to 999,999,999,999, spell out that number in English.",
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"source": "A variation on the JavaRanch CattleDrive, Assignment 4",
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"source_url": "https://web.archive.org/web/20240907035912/https://coderanch.com/wiki/718804"
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}

‎exercises/practice/say/.meta/example.sql

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UPDATE say SET result = 'zero' WHERE number = 0;
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UPDATE say
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SET error = 'input out of range'
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WHERE number < 0
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OR number >= 1e12
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;
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DROP TABLE IF EXISTS dict;
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CREATE TEMPORARY TABLE dict (
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digits INTEGER PRIMARY KEY,
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words TEXT NOT NULL
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);
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INSERT INTO dict (digits, words)
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VALUES ( 0, 'zero' ),
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( 1, 'one' ),
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( 2, 'two' ),
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( 3, 'three' ),
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( 4, 'four' ),
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( 5, 'five' ),
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( 6, 'six' ),
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( 7, 'seven' ),
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( 8, 'eight' ),
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( 9, 'nine' ),
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(10, 'ten' ),
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(11, 'eleven' ),
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(12, 'twelve' ),
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(13, 'thirteen' ),
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(14, 'fourteen' ),
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(15, 'fifteen' ),
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(16, 'sixteen' ),
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(17, 'seventeen'),
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(18, 'eighteen' ),
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(19, 'nineteen' ),
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(20, 'twenty' ),
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(30, 'thirty' ),
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(40, 'forty' ),
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(50, 'fifty' ),
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(60, 'sixty' ),
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(70, 'seventy' ),
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(80, 'eighty' ),
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(90, 'ninety' );
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WITH dozens (jarray) AS (
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SELECT (
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WITH RECURSIVE rcte (base, unit, dozen, string) AS (
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VALUES (digits, 1, NULL, NULL)
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UNION ALL
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SELECT digits,
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unit + 1,
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base + unit,
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PRINTF(
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'%s-%s',
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(SELECT words FROM dict WHERE digits = base),
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(SELECT words FROM dict WHERE digits = unit))
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FROM rcte
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WHERE unit < 10
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)
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SELECT JSON_GROUP_ARRAY(JSON_ARRAY(dozen, string))
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FROM rcte
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WHERE dozen NOT NULL
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)
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FROM dict
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WHERE digits BETWEEN 20 AND 90
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)
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INSERT INTO dict (digits, words)
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SELECT JSON_EXTRACT(j.VALUE, '$[0]'), JSON_EXTRACT(j.VALUE, '$[1]')
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FROM dozens, JSON_EACH(jarray) j;
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INSERT INTO dict
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SELECT value * 100,
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(SELECT words FROM dict WHERE digits = VALUE) || ' hundred'
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FROM GENERATE_SERIES(1, 9);
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DROP TABLE IF EXISTS positions;
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CREATE TEMPORARY TABLE positions (
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pos INTEGER PRIMARY KEY,
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words TEXT NOT NULL
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);
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INSERT INTO positions (pos, words)
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VALUES ( 2, 'thousand' ),
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( 3, 'million' ),
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( 4, 'billion' ),
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( 5, 'trillion' ),
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( 6, 'quadrillion' ),
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( 7, 'quintillion' ),
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( 8, 'sextillion' ),
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( 9, 'septillion' ),
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(10, 'octillion' ),
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(11, 'nonillion' ),
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(12, 'decillion' ),
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(13, 'undecillion' ),
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(14, 'duodecillion' ),
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(15, 'tredecillion' ),
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(16, 'quattuordecillion'),
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(17, 'quindecillion' ),
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(18, 'sexdecillion' ),
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(19, 'septendecillion' ),
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(20, 'octodecillion' ),
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(21, 'novemdecillion' ),
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(22, 'vigintillion' );
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UPDATE say
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SET result = (
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WITH
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decompositor (num, thousands, thpos) AS (
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WITH RECURSIVE decompositor (num, thousands, thpos) AS (
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VALUES (number, NULL, 0)
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UNION ALL
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SELECT num / 1000,
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JSON_ARRAY( num % 1000 - num % 100, (num % 1000) % 100 ),
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thpos + 1
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FROM decompositor
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WHERE num > 0
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)
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SELECT * FROM decompositor
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),
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to_strings (thpos, hundred, dozen, pos_str) AS (
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SELECT
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thpos,
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(
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SELECT words
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FROM dict
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WHERE digits = NULLIF(JSON_EXTRACT(thousands, '$[0]'), 0)
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),
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(
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SELECT words
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FROM dict
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WHERE digits = NULLIF(JSON_EXTRACT(thousands, '$[1]'), 0 )
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),
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IIF(
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JSON_EXTRACT(thousands, '$[0]') +
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JSON_EXTRACT(thousands, '$[1]') > 0,
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(SELECT words FROM positions WHERE pos = thpos),
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NULL
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)
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FROM decompositor
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WHERE thpos > 0
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),
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to_format (thpos, string) AS (
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SELECT thpos, TRIM(PRINTF('%s %s %s', hundred, dozen, pos_str))
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FROM to_strings
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ORDER BY thpos DESC
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)
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SELECT TRIM(GROUP_CONCAT(string, ' ')) FROM to_format
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)
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WHERE error IS NULL
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AND number > 0
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;

‎exercises/practice/say/.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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[5d22a120-ba0c-428c-bd25-8682235d83e8]
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description = "zero"
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[9b5eed77-dbf6-439d-b920-3f7eb58928f6]
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description = "one"
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[7c499be1-612e-4096-a5e1-43b2f719406d]
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description = "fourteen"
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[f541dd8e-f070-4329-92b4-b7ce2fcf06b4]
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description = "twenty"
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[d78601eb-4a84-4bfa-bf0e-665aeb8abe94]
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description = "twenty-two"
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[f010d4ca-12c9-44e9-803a-27789841adb1]
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description = "thirty"
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[738ce12d-ee5c-4dfb-ad26-534753a98327]
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description = "ninety-nine"
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[e417d452-129e-4056-bd5b-6eb1df334dce]
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description = "one hundred"
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[d6924f30-80ba-4597-acf6-ea3f16269da8]
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description = "one hundred twenty-three"
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[2f061132-54bc-4fd4-b5df-0a3b778959b9]
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description = "two hundred"
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[feed6627-5387-4d38-9692-87c0dbc55c33]
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description = "nine hundred ninety-nine"
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[3d83da89-a372-46d3-b10d-de0c792432b3]
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description = "one thousand"
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[865af898-1d5b-495f-8ff0-2f06d3c73709]
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description = "one thousand two hundred thirty-four"
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[b6a3f442-266e-47a3-835d-7f8a35f6cf7f]
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description = "one million"
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[2cea9303-e77e-4212-b8ff-c39f1978fc70]
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description = "one million two thousand three hundred forty-five"
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[3e240eeb-f564-4b80-9421-db123f66a38f]
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description = "one billion"
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[9a43fed1-c875-4710-8286-5065d73b8a9e]
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description = "a big number"
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[49a6a17b-084e-423e-994d-a87c0ecc05ef]
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description = "numbers below zero are out of range"
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[4d6492eb-5853-4d16-9d34-b0f61b261fd9]
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description = "numbers above 999,999,999,999 are out of range"

‎exercises/practice/say/create_fixture.sql

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DROP TABLE IF EXISTS say;
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CREATE TABLE say (
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number INTEGER NOT NULL,
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result TEXT,
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error TEXT
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);
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.mode csv
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.import ./data.csv say
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UPDATE say SET result = NULL, error = NULL;

‎exercises/practice/say/create_test_table.sql

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DROP TABLE IF EXISTS tests;
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CREATE TABLE IF NOT EXISTS tests (
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-- uuid and description are taken from the test.toml file
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uuid TEXT PRIMARY KEY,
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description TEXT NOT NULL,
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-- The following section is needed by the online test-runner
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status TEXT DEFAULT 'fail',
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message TEXT,
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output TEXT,
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test_code TEXT,
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task_id INTEGER DEFAULT NULL,
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-- Here are columns for the actual tests
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number INTEGER NOT NULL,
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expected_result TEXT,
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expected_error TEXT
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);
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INSERT INTO tests (uuid, description, number, expected_result, expected_error)
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VALUES
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('5d22a120-ba0c-428c-bd25-8682235d83e8', 'zero', 0, 'zero', NULL),
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('9b5eed77-dbf6-439d-b920-3f7eb58928f6', 'one', 1, 'one', NULL),
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('7c499be1-612e-4096-a5e1-43b2f719406d', 'fourteen', 14, 'fourteen', NULL),
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('f541dd8e-f070-4329-92b4-b7ce2fcf06b4', 'twenty', 20, 'twenty', NULL),
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('d78601eb-4a84-4bfa-bf0e-665aeb8abe94', 'twenty-two', 22, 'twenty-two', NULL),
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('f010d4ca-12c9-44e9-803a-27789841adb1', 'thirty', 30, 'thirty', NULL),
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('738ce12d-ee5c-4dfb-ad26-534753a98327', 'ninety-nine', 99, 'ninety-nine', NULL),
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('e417d452-129e-4056-bd5b-6eb1df334dce', 'one hundred', 100, 'one hundred', NULL),
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('d6924f30-80ba-4597-acf6-ea3f16269da8', 'one hundred twenty-three', 123, 'one hundred twenty-three', NULL),
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('2f061132-54bc-4fd4-b5df-0a3b778959b9', 'two hundred', 200, 'two hundred', NULL),
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('feed6627-5387-4d38-9692-87c0dbc55c33', 'nine hundred ninety-nine', 999, 'nine hundred ninety-nine', NULL),
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('3d83da89-a372-46d3-b10d-de0c792432b3', 'one thousand', 1000, 'one thousand', NULL),
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('865af898-1d5b-495f-8ff0-2f06d3c73709', 'one thousand two hundred thirty-four', 1234, 'one thousand two hundred thirty-four', NULL),
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('b6a3f442-266e-47a3-835d-7f8a35f6cf7f', 'one million', 1000000, 'one million', NULL),
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('2cea9303-e77e-4212-b8ff-c39f1978fc70', 'one million two thousand three hundred forty-five', 1002345, 'one million two thousand three hundred forty-five', NULL),
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('3e240eeb-f564-4b80-9421-db123f66a38f', 'one billion', 1000000000, 'one billion', NULL),
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('9a43fed1-c875-4710-8286-5065d73b8a9e', 'a big number', 987654321123, 'nine hundred eighty-seven billion six hundred fifty-four million three hundred twenty-one thousand one hundred twenty-three', NULL),
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('49a6a17b-084e-423e-994d-a87c0ecc05ef', 'numbers below zero are out of range', -1, NULL, 'input out of range'),
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('4d6492eb-5853-4d16-9d34-b0f61b261fd9', 'numbers above 999,999,999,999 are out of range', 1000000000000, NULL, 'input out of range');

‎exercises/practice/say/data.csv

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0,,
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1,,
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14,,
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20,,
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22,,
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30,,
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99,,
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100,,
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123,,
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200,,
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999,,
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1000,,
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1234,,
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1000000,,
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1002345,,
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1000000000,,
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987654321123,,
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-1,,
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1000000000000,,

‎exercises/practice/say/say.sql

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-- Schema:
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-- CREATE TABLE say (
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-- number INTEGER NOT NULL,
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-- result TEXT,
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-- error TEXT
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-- );
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--
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-- Task: update the say table and set the result or the error columns based on the number.

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