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- RehanCodes
- RehanCodes

... • An array is a series of elements of the same type placed in contiguous memory locations that can be individually referenced by adding an index to a unique identifier • The lowest address corresponds to the first element and the highest address to the last element. • One dimensional array • Two Dim ...
Array Algorithms
Array Algorithms

... Compare the target value to the element in the middle of the sorted array If they are the same, the search ends If the target value is larger than the element, then you know every element to the left of the middle is also not the element. o Eliminate all values to the left of the middle and repeat s ...
Array Algorithms
Array Algorithms

arrays
arrays

... As the value of the counter changes, we "visit" each element in turn. This is commonly known as "traversing an array." Here is a generic array processing loop that traverses an array of exactly count elements (i.e., elements 0 through ...
Arrays - 3rd Semester Notes
Arrays - 3rd Semester Notes

linked list
linked list

... Each element contains two parts: data and link. The link contains a pointer (an address) that identifies the next element in the list. Singly linked list The link in the last element contains a null pointer, indicating the end of the list. ...
Document
Document

Background
Background

... What do I need to catch up with? • Simple algorithms for simple problems – Find the minimum or maximum element in a data structure – Reverse the elements in an array – Determine the top three elements in an array – Merge two sorted arrays into a third sorted array • Merge two sorted files containin ...
Complex Arrays
Complex Arrays

... The solution to the problem arises from dual arrays with a single index.  Thus, data type notation and data structure become tightly related.  Data structure– any construct to store and manipulate data in a program or algorithm. ...
Exposure Java Exercises
Exposure Java Exercises

... List 5 simple data types. ...
Exposure Java Exercises
Exposure Java Exercises

Assignment 1 What is data structure? Explain the types of data
Assignment 1 What is data structure? Explain the types of data

< 1 ... 43 44 45 46 47

Array data structure

In computer science, an array data structure or simply an array is a data structure consisting of a collection of elements (values or variables), each identified by at least one array index or key. An array is stored so that the position of each element can be computed from its index tuple by a mathematical formula. The simplest type of data structure is a linear array, also called one-dimensional array.For example, an array of 10 32-bit integer variables, with indices 0 through 9, may be stored as 10 words at memory addresses 2000, 2004, 2008, ... 2036, so that the element with index i has the address 2000 + 4 × i.Because the mathematical concept of a matrix can be represented as a two-dimensional grid, two-dimensional arrays are also sometimes called matrices. In some cases the term ""vector"" is used in computing to refer to an array, although tuples rather than vectors are more correctly the mathematical equivalent. Arrays are often used to implement tables, especially lookup tables; the word table is sometimes used as a synonym of array.Arrays are among the oldest and most important data structures, and are used by almost every program. They are also used to implement many other data structures, such as lists and strings. They effectively exploit the addressing logic of computers. In most modern computers and many external storage devices, the memory is a one-dimensional array of words, whose indices are their addresses. Processors, especially vector processors, are often optimized for array operations.Arrays are useful mostly because the element indices can be computed at run time. Among other things, this feature allows a single iterative statement to process arbitrarily many elements of an array. For that reason, the elements of an array data structure are required to have the same size and should use the same data representation. The set of valid index tuples and the addresses of the elements (and hence the element addressing formula) are usually, but not always, fixed while the array is in use.The term array is often used to mean array data type, a kind of data type provided by most high-level programming languages that consists of a collection of values or variables that can be selected by one or more indices computed at run-time. Array types are often implemented by array structures; however, in some languages they may be implemented by hash tables, linked lists, search trees, or other data structures.The term is also used, especially in the description of algorithms, to mean associative array or ""abstract array"", a theoretical computer science model (an abstract data type or ADT) intended to capture the essential properties of arrays.
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