argh i want a `HashSet<HashSet<T>>` and that's not a thing #rustlang #adventofcode
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Would the inner sets be immutable? Could/should a library implementation a hashable FrozenSet?
Does mutability matter here? String is hash. Set owns it's elements, doesn't give mutable access.
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i have no idea what i'm doing computer dog dot jpeg
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You’re right. Sounds like it’s more about iteration order than mutability.
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