quadraticprb.html
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<H1>quadratic probing</H1>
<P>
(algorithm)
<P>
<strong>Definition:</strong>
A <a href="hashtab.html" tppabs="http://hissa.nist.gov/dads/HTML/hashtab.html"><em>hash table</em></a> in which a <a href="collision.html" tppabs="http://hissa.nist.gov/dads/HTML/collision.html"><em>collision</em></a> is resolved by putting the item in the next empty place given by a sequence. The space between places in the sequence increases quadratically.
<P><strong>See also</strong>
<a href="doublehashng.html" tppabs="http://hissa.nist.gov/dads/HTML/doublehashng.html"><em>double hashing</em></a>, <a href="linearprobng.html" tppabs="http://hissa.nist.gov/dads/HTML/linearprobng.html"><em>linear probing</em></a>.
<P><em>Note:
Deletion may be hard because finding collisions again relies on not creating empty spots. One solution is to mark an entry as deleted so it can be reused for insertion, but the search list is intact. </em>
<P>Author: <a href="terms.html#authorPEB" tppabs="http://hissa.nist.gov/dads/terms.html#authorPEB">PEB</a>
<H2>Implementation</H2>
<A HREF="javascript:if(confirm('http://www.nist.gov/cgi-bin/exit_nist.cgi?url=http://www.dcc.uchile.cl/%7Eoalonso/handbook/algs/3/336.ins.p.html \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.nist.gov/cgi-bin/exit_nist.cgi?url=http://www.dcc.uchile.cl/%7Eoalonso/handbook/algs/3/336.ins.p.html'" tppabs="http://www.nist.gov/cgi-bin/exit_nist.cgi?url=http://www.dcc.uchile.cl/%7Eoalonso/handbook/algs/3/336.ins.p.html">insert (C and Pascal)</A>
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(<a href="mailto:paul.black@nist.gov">paul.black@nist.gov</a>).
<p>
Entry modified Tue Apr 6 08:29:31 1999.<BR>
HTML page formatted Wed Dec 22 09:36:16 1999.
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