- hello-world
- two-fer
- square-root
- reverse-string
- raindrops
- allergies
- armstrong-numbers
- high-scores
- bob
- triangle
- leap
- isogram
- pangram
- scrabble-score
- darts
- difference-of-squares
- anagram
- space-age
- gigasecond
- collatz-conjecture
- perfect-numbers
- luhn
- largest-series-product
- acronym
- resistor-color
- resistor-color-duo
- resistor-color-trio
- hamming
- rna-transcription
- etl
- word-count
- sieve
- nth-prime
- grains
- all-your-base
- roman-numerals
- prime-factors
- matching-brackets