This web site is hosted by the Software and Systems Division , Information Technology Laboratory ,NIST in collaboration with the FASTAR group . Development of this dictionary started in 1998 under the editorship of Paul E. Black.

This is a dictionary of algorithms, algorithmic techniques, data structures, archetypal problems, and related definitions. Algorithms include common functions, such asAckermann’s function. Problems includetraveling salesman andByzantine generals. Some entries have links toimplementations and more information. Index pages list entries byarea and bytype. Thetwo-level index has a total download 1/20 as big as this page.

Don’t use this site to cheat. Teachers, contact us if we can help.

Currently we do not include algorithms particular to business data processing, communications, operating systems or distributed algorithms, programming languages, AI, graphics, or numerical analysis: it is tough enough covering "general" algorithms and data structures.If you have suggestions, corrections, or comments, please get in touch withPaul Black.

Some terms with a leading variable, such as *n* -way, *m* -dimensional, or *p* -branching, are under. You may find useful entries in A Glossary of Computer Oriented Abbreviations and Acronyms .

To look up words or phrases, enter them in the box, then click the button.

We thank those who contributed definitions as well as many others who offered suggestions and corrections.

After more than a decade of service as author of the DADS, Paul Black co-opted Vreda Pieterse of the FASTAR group at Stellenbosch University (South Africa), University of Pretoria, and Eindhoven University (Netherlands) as co-author. This site currently runs as a mirror of the original DADS that is still hosted at http://xlinux.nist.gov/dads/ . The older URL http://www.nist.gov/dads/ is an alias which should continue to refer to this URL. We regret any inconvenience this may cause.

Here are some references on algorithms and data structures.

The Stony Brook Algorithm Repository , which has algorithms organized by type, succinct, illustrated definitions, and ratings of sites with implementations.

Data Structures and Algorithms is a wonderful site with illustrations, explanations, analysis, and code taking the student from arrays and lists through trees, graphs, and intractable problems.

Eric Weisstein’s World of Mathematics or MathWorld.

The Sphere online judge (SPOJ) has about 6600 small programming tasks or puzzles and 900 contests. Even nicer it automatically assesses your programs written in 40 languages.

The Computing Research Repository (CoRR). Seventh International Conference on Fun With Algorithms (FUN 2014). The conference "is dedicated to the use, design, and analysis of algorithms and data structures, focusing on results that provide amusing, witty but nonetheless original and scientifically profound contributions to the area."

## Bibliography

[AS98] **Pankaj K. Agarwal** and **Micha Sharir** , *Efficient Algorithms for Geometric Optimization* , ACM Computing Surveys, 30(4):412-458, December 1998.

[ATCH99] *Algorithms and Theory of Computation Handbook* , **Mikhail J. Atallah** , ed., CRC Press LLC, 1999.

[CLR90] **Thomas H. Cormen, Charles E. Leiserson** , and **Ronald L. Rivest** , *Introduction to Algorithms* , MIT Press, 1990.

[GBY91] **Gaston H. Gonnet** and **Ricardo Baeza-Yates** , *Handbook of Algorithms and Data Structures — in Pascal and C* , 2 ^{nd} edition, Addison-Wesley, 1991.

[GCG92] **P. Gupta, P. P. Chakrabarti** , and **S. Ghose** , *The Towers of Hanoi: Generalizations, Specializations, and Algorithms* , Intern. J. Computer Math., 46:149-161, Gordon and Breach Science Publishers S.A., 1992.

[GG98] **Volker Gaede** and **Oliver Günther** , *Multidimensional Access Methods* , ACM Computing Surveys, 30(2):170-231, June 1998.

[GT97] **Michael T. Goodrich** and **Roberto Tamassia** , *Data Structures and Algorithms in Java* , 2 ^{nd} edition, John Wiley & Sons, 1997.

[Graef06] **Goetz Graefe** , *Implementing Sorting in Database Systems* , ACM Computing Surveys, 38(3), Article 10, September 2006.

[Hirv01] **Mika Hirvensalo** , *Quantum Computing* , Springer-Verlag, 2001.

[HS83] **Ellis Horowitz** and **Sartaj Sahni** , *Fundamentals of Data Structures* , Computer Science Press, 1983.

[Knuth97] **Donald E. Knuth** , *The Art of Computer Programming* , Addison-Wesley, volumes 1 and 2, 2 ^{nd} edition, 1997.

[Knuth98] **Donald E. Knuth** , *The Art of Computer Programming* , Addison-Wesley, volume 3, 2 ^{nd} edition, 1998.

[Leda98] LEDA (accessed 4 December 2002).

[Sedge97] **Robert Sedgewick** , *Algorithms in C* , Addison-Wesley, 1997.

[Stand98] **Thomas Standish** , *Data Structures in Java* , Addison-Wesley, 1998.

[Sund98] **Daniel M. Sunday** , *A Very Fast Substring Search Algorithm* , Communications of the ACM, 33(8):132-142, August 1998.

[Vitt01] **Jeffrey Scott Vitter** , *External Memory Algorithms and Data Structures: Dealing with Massive Data* , ACM Computing Surveys, 33(2):209-271, June 2001.

[Wier98] **Roel Wieringa** , *A Survey of Structured and Object-Oriented Software Specification Methods and Techniques* , ACM Computing Surveys, 30(4):459-527, December 1998.

Here are citation examples and an explanation of credit .

Robots, please index all term pages, including spelling variants .

*Created Fri Sep 4 16:39:23 1998*

*This Trailer* *Updated Tue Sep 2 08:24:32 2014*

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