Programming Assignment Expert - Data Structure
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Data structures are usually based on the ability of a computer to fetch and store
data at any place in its memory, specified by an address—a bit string that can be
itself stored in memory and manipulated by the program. Thus the record and array
data structures are based on computing the addresses of data items with arithmetic
operations; while the linked data structures are based on storing addresses of data
items within the structure itself. Many data structures use both principles, sometimes
combined in non-trivial ways (as in XOR linking)
The implementation of a data structure usually requires writing a set of procedures
that create and manipulate instances of that structure. The efficiency of a data
structure cannot be analyzed separately from those operations. This observation
motivates the theoretical concept of an abstract data type, a data structure that
is defined indirectly by the operations that may be performed on it, and the mathematical
properties of those operations (including their space and time cost).
Data structures provide a means to manage huge amounts of data efficiently, such
as large databases and internet indexing services. Usually, efficient data structures
are a key to designing efficient algorithms. Some formal design methods and programming
languages emphasize data structures, rather than algorithms, as the key organizing
factor in software design. Storing and retrieving can be carried out on data stored
in both main memory and in secondary memory. Various Data Structures are available
that are needed to be employed based on the need.
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