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set: introduce set union
Signed-off-by: oppiliappan <me@oppi.li>
authored by
oppiliappan
and committed by
Tangled
b1b9ce16
71c625e2
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set.go
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set.go
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package hashset
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import (
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"maps"
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)
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type Set[T comparable] map[T]struct{}
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// New creates and returns a new empty Set.
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func (s Set[T]) Size() int {
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return len(s)
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}
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// Union returns a new set containing all elements from s and other.
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func (s Set[T]) Union(other Set[T]) Set[T] {
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result := make(Set[T], len(s)+len(other))
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maps.Copy(result, s)
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maps.Copy(result, other)
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return result
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}