Definition: A randomized algorithm that always produces correct results, with the only variation from one run to another being its running time.
Generalization (I am a kind of ...)
Specialization (... is a kind of me.)
skip list insert, Quicksort variants that pick the pivot randomly, random search, Grover's algorithm, Czech, Havas, and Majewski's order-preserving minimal perfect hashing, von Neumann's unbiased coin flipping algorithm.
See also Monte Carlo algorithm, ZPP.
Note: From Algorithms and Theory of Computation Handbook, 15-21, Copyright © 1999 by CRC Press LLC. Appearing in the Dictionary of Computer Science, Engineering and Technology, Copyright © 2000 CRC Press LLC.
A Monte Carlo algorithm gives more precise results the longer you run it. A Las Vegas algorithm always gives the right answer, but the run time is indeterminate.
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Entry modified 7 July 2022.
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Cite this as:
Algorithms and Theory of Computation Handbook, CRC Press LLC, 1999, "Las Vegas algorithm", in Dictionary of Algorithms and Data Structures [online], Paul E. Black, ed. 7 July 2022. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/lasVegas.html