Algorithms & data structures

Algorithms & data structures

The optimization of programming methods and organization of information to achieve a desired result more efficiently.

Industry: Computer science

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Algorithms & data structures

Address-calculation sort

Computer science; Algorithms & data structures

A sort algorithm which uses knowledge of the domain of the items to calculate the position of each item in the sorted array.

Treesort

Computer science; Algorithms & data structures

(1) A sort algorithm that first builds a binary search tree of the keys, then accesses the keys with an in-order traversal. (2) A variant of heapsort.

A type of Turing machine that uses a queue instead of an infinite tape to simulate a very simple programme formulation. A Turing machine is a hypothetical device that manipulates symbols on a strip ...

Order-preserving Huffman coding

Computer science; Algorithms & data structures

A variable-length character coding based on the frequency of each character. The algorithm is similar to Huffman coding, but the trees are kept in the same order as the characters. Two adjacent trees ...

Shannon-Fano coding

Computer science; Algorithms & data structures

A variable-length coding based on the frequency of occurrence of each character. Divide the characters into two sets with the frequency of each set as close to half as possible, and assign the sets ...

Nondeterministic Turing machine

Computer science; Algorithms & data structures

A Turing machine which has more than one next state for some combinations of contents of the current cell and current state. An input is accepted if any move sequence leads to acceptance.

Oracle Turing machine

Computer science; Algorithms & data structures

A Turing machine with an extra oracle tape and three extra states q ? , q y , q n . When the machine enters q ? , control goes to state q y if the oracle tape content is in the oracle set; otherwise ...