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cirq.contrib.acquaintance.cubic_acquaintance_strategy

Acquaints every triple of qubits.

Exploits the fact that in a simple linear swap network every pair of logical qubits that starts at distance two remains so (except temporarily near the edge), and that every third one goes through the pair at some point in the network. The strategy then iterates through a series of mappings in which qubits i and i + k are placed at distance two, for k = 1 through n / 2. Linear swap networks are used in between to effect the permutation.