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Raku

Exercises

Custom Set

Easy

Instructions

Create a custom set type.

Sometimes it is necessary to define a custom data structure of some type, like a set. In this exercise you will define your own set. How it works internally doesn't matter, as long as it behaves like a set of unique elements.

Set Operators

raku has built-in set support.

Operators are available in mathematical notation (via Unicode) along with ASCII equivalents:

Set context

Unicode	ASCII	Description
`∅`	`set()`	empty set
`∩`	`(&)`	intersection
`∪`	`(\|)`	union
`∖`	`(-)`	set difference
`⊖`	`(^)`	set symmetric difference

Boolean context

Unicode	ASCII	Description
`≡`	`(==)`	are identical
`≢`	`!(==)`	not identical
`∈`	`(elem)`	is an element of
`∉`	`!(elem)`	is not an element of
`∋`	`(cont)`	contains
`∌`	`!(cont)`	does not contain
`⊆`	`(<=)`	is a subset or equal to
`⊈`	`!(<=)`	is not a subset or equal to
`⊂`	`(<)`	is a strict subset of
`⊄`	`!(<)`	is not a strict subset of
`⊇`	`(>=)`	is a superset or equal to
`⊉`	`!(>=)`	is not a superset or equal to
`⊃`	`(>)`	is a strict superset of
`⊅`	`!(>)`	is not a strict superset of

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Instructions

Set Operators

Set context

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