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During the first phase of the algorithm, the players zoom in on a high-entropy coordinate. They exchange $O(1)$ bits, and stop at each step with probability $\Omega(\epsilon^2/\log^2(1/\epsilon))$ (here we use independence). Hence this phase uses up at most $O(\log^2(1/\epsilon)/\epsilon^2)$ bits in expectation. The second phase uses $O(n\epsilon)$ bits. In ...


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