Question: We have seen that swapping two values stored in variables requires a third temporary variable. Without using negative indexing or modular arithmetic, what is the

We have seen that swapping two values stored in variables requires a third temporary variable. Without using negative indexing or modular arithmetic, what is the minimum number of extra variables needed to rotate the values in a three-cell array right so that [A, B, C] becomes [C, A, B]?

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