Danil Negrienko b21db6b2f9 | ||
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.. | ||
.exercism | ||
lib | ||
test | ||
.formatter.exs | ||
.gitignore | ||
HELP.md | ||
README.md | ||
mix.exs |
README.md
Say
Welcome to Say on Exercism's Elixir Track.
If you need help running the tests or submitting your code, check out HELP.md
.
Instructions
Given a number from 0 to 999,999,999,999, spell out that number in English.
Step 1
Handle the basic case of 0 through 99.
If the input to the program is 22
, then the output should be 'twenty-two'
.
Your program should complain loudly if given a number outside the blessed range.
Some good test cases for this program are:
- 0
- 14
- 50
- 98
- -1
- 100
Extension
If you're on a Mac, shell out to Mac OS X's say
program to talk out loud.
If you're on Linux or Windows, eSpeakNG may be available with the command espeak
.
Step 2
Implement breaking a number up into chunks of thousands.
So 1234567890
should yield a list like 1, 234, 567, and 890, while the far simpler 1000
should yield just 1 and 0.
Step 3
Now handle inserting the appropriate scale word between those chunks.
So 1234567890
should yield '1 billion 234 million 567 thousand 890'
The program must also report any values that are out of range. It's fine to stop at "trillion".
Step 4
Put it all together to get nothing but plain English.
12345
should give twelve thousand three hundred forty-five
.
The program must also report any values that are out of range.
Source
Created by
- @zporter
Contributed to by
- @aifrak
- @amencarini
- @angelikatyborska
- @Cohen-Carlisle
- @devonestes
- @neenjaw
- @parkerl
- @sotojuan
Based on
A variation on the JavaRanch CattleDrive, Assignment 4 - https://coderanch.com/wiki/718804