algorithms

Official homes are here on github, and at rubyforge
Documentation: http://algorithms.rubyforge.org/

DESCRIPTION:

Started as a Google Summer of Code 2008 project

Written by Kanwei Li, mentored by Austin Ziegler

Original Proposal: Using the right data structure or algorithm for the situation is an important aspect of programming. In computer science literature, many data structures and algorithms have been researched and extensively documented. However, there is still no standard library in Ruby implementing useful structures and algorithms like Red/Black Trees, tries, different sorting algorithms, etc. This project will create such a library with documentation on when to use a particular structure/algorithm. It will also come with a benchmark suite to compare performance in different situations.

FEATURES:

Done so far:

	* Heaps              Containers::Heap, Containers::MaxHeap, Containers::MinHeap
	* Priority Queue     Containers::PriorityQueue
	* Deque              Containers::Deque, Containers::CDeque (C extension), Containers::RubyDeque
	* Stack              Containers::Stack (uses Deque)
	* Queue              Containers::Queue (uses Deque)
	* Red-Black Trees    Containers::RBTreeMap, Containers::CRBTreeMap (C extension), Containers::RubyRBTreeMap
	* Splay Trees        Containers::SplayTreeMap, Containers::CSplayTreeMap (C extension), Containers::RubySplayTreeMap
	* Tries              Containers::Trie
	* Suffix Array       Containers::SuffixArray
	* kd Tree   				 Containers::KDTree

	* Search algorithms
	  - Binary Search            Algorithms::Search.binary_search
	  - Knuth-Morris-Pratt       Algorithms::Search.kmp_search
	* Sort algorithms           
	  - Bubble sort              Algorithms::Sort.bubble_sort
	  - Comb sort                Algorithms::Sort.comb_sort
	  - Selection sort           Algorithms::Sort.selection_sort
	  - Heapsort                 Algorithms::Sort.heapsort
	  - Insertion sort           Algorithms::Sort.insertion_sort
	  - Shell sort               Algorithms::Sort.shell_sort
	  - Quicksort                Algorithms::Sort.quicksort
	  - Mergesort                Algorithms::Sort.mergesort

SYNOPSIS:

	require 'rubygems'
	require 'algorithms'
	
	max_heap = Containers::MaxHeap.new
	
	# To not have to type "Containers::" before each class, use:
	include Containers
	max_heap = MaxHeap.new

REQUIREMENTS:

Ruby 1.8 compatible Ruby, or Ruby 1.9
C compiler for C extensions (optional, but very much recommended for vast performance benefits)

INSTALL:

sudo gem install algorithms

LICENSE:

(The MIT License)

Algorithms and Containers project is Copyright (c) 2009 Kanwei Li

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

trevorcreech/algorithms

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