Abstract

We consider cuckoo hashing as proposed by Pagh and Rodler in 2001. We show that the expected construction time of the hash table is O( n) as long as the two open addressing tables are each of size at least (1+ ε) n, where ε>0 and n is the number of data points. Slightly improved bounds are obtained for various probabilities and constraints. The analysis rests on simple properties of branching processes.

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