* Improve formatting and clarity in "Subset"
* Change method name to isSubsetOf
Co-authored-by: Eric Leung <eric@erictleung.com>
* Change method name to isSubsetOf
Co-authored-by: Eric Leung <eric@erictleung.com>
* Fix method name in tests
* Fix variable name aIsSubsetOfB
* Fix method name in solution
Co-authored-by: Eric Leung <eric@erictleung.com>