Arrays, Data Structure & Algorithms

Assignment Help:

This unit discussed about data structure called Arrays. The easiest form of array is a one-dimensional array which may be described as a finite ordered set of homogeneous elements that is stored in contiguous memory locations. For instance, an array might contain all integers or all characters or any data type, but might not contain a mix of data types.

The common form for declaring a single dimensional array is following:

data_type array_name[expression];

where data_type represents data type of the array. That is, char, integer, float etc. array_name is the name of expression and array which denoted the number of elements in the array.

For instance, assume the following C declaration:

int  a[100];

This declares an array of 100 integers.

The amount of storage needed to hold an array is related to its type and size directly. For a single dimension array, the overall size in bytes needed for the array is computed as illustrated below.

Memory needed (in bytes) = size of (data type) X length of array

The primary array index value is referred to as its lower bound & in C this is always 0 and the maximum index value is called as its upper bound. In the array the number of elements, called its range is given by upper bound-lower bound.

In the arrays we store values during program execution. Now Let us see the process of initializing an array while declaring it.

int a[4] = {34,60,93,2};

int b[] = {2,3,4,5};

float c[] = {-4,6,81,- 60};

We come to the following facts from these instance:

(i) If at the time of declaration the array is initialized, then the dimension of the array is optional.

(ii) Till the elements of array are not given any particular values, they have garbage values.


Related Discussions:- Arrays

The complexity of multiplying two matrices, The complexity of multiplying t...

The complexity of multiplying two matrices of order m*n and n*p is    mnp

Circular queues and implement circular queues using array, Explain what are...

Explain what are circular queues? Write down routines required for inserting and deleting elements from a circular queue implemented using arrays.           Circular queue:

Adjacency list representation, Adjacency list representation An Adjacen...

Adjacency list representation An Adjacency list representation of Graph G = {V, E} contains an array of adjacency lists mentioned by adj of V list. For each of the vertex u?V,

Collision resolution techniques, complete information about collision resol...

complete information about collision resolution techniques

Homework, Write a recursive function the computes the number of digits in a...

Write a recursive function the computes the number of digits in a positive integer n. For example if n = 6598, the function should return 4. Find a variant expression and a thresho

Graph traversal, 1) Which graph traversal uses a queue to hold vertices whi...

1) Which graph traversal uses a queue to hold vertices which are to be processed next ? 2) Which of the graph traversal is recursive by nature? 3) For a dense graph, Prim's a

Use a random number generator to create 10 numbers, Use a random number gen...

Use a random number generator to create 10 numbers between 1 and 1000 and store them in 2 different arrays.  The first array should contain the numbers as they are generated.  The

Describe commonly used asymptotic notations, Q.1 Compare two functions n 2 ...

Q.1 Compare two functions n 2 and 2 n for various values of n. Determine when second becomes larger than first. Q.2 Why do we use asymptotic notation in the study of algorit

Asymptotic analysis, Asymptotic Analysis Asymptotic analysis is dependi...

Asymptotic Analysis Asymptotic analysis is depending on the idea that as the problem size grows, the complexity can be defined as a simple proportionality to some known functio

Illustrate the wire frame representation, RENDERING, SHADING AND COLOURING ...

RENDERING, SHADING AND COLOURING By introducing hidden line removal we have already taken one step away from wire-frame drawings towards being able to realistically model and d

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd