Question: Recall that we use NewRef, DeRef, and AssignRef in the explicit references to create, access, and update mutable variables in Lettuce. In the implicit version,

Recall that we use NewRef, DeRef, and AssignRef in the explicit references to create, access, and update mutable variables in Lettuce. In the implicit version, we use LetVar to define mutable variables and AssignVar to update them. Our goal is to compare their difference in expressing various lettuce programs.

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