What is Array in Data Structure?

What is Array ?

The array is a data type.  Arrays are stored in a sequential memory location in the computer's memory.  

The array is also called a similar kind of data.  The array is a type of data structure, work can be done very easily with the data kept in the array.  

The array can also be called a subscript variable.  The array is used to group similar elements.  The same type of elements is defined in the array.





What is Operation of Array?

Array perform various operations those are,

  •  Traversing
  •  Inserting
  •  Deleting
  •  Sorting
  •  Searching
  •  Merging


Types of Array

 Arrays are of three types,

  1.  Single-dimensional array
  2.  Two-dimensional array
  3.  Multidimensional array

Single-dimensional Array

All the elements in a single-dimensional array are in a single sub-script.

Two-dimensional Array

There are two sub-scripts in a two-dimensional array.  Values ​​in a two-dimensional array are stored in the form of a matrix.

Multidimensional Array
There can be any number of sub-scripts in a multi-dimensional array. 


What is Array Representation ?

The array can be represented in two ways in the form of column-major and row-major.


Characteristics of the Array 

 You can access the array directly.

 The elements in the array have to be selected first.

 Only one type of data can be stored in an array at the same time.

 The array is used based on index and value.

 The formulas used to give instructions in Array are very simple and easy.  So that complex work can be done easily.

 Array element size and data size are the same.

 In Array, you can access each element of the array by its index number and you can do the manipulation when needed.

 In Array, only one type of data can be stored simultaneously.



Advantages & Disadvantages of the array 

Advantage 

With the help of Array, we can do any complex task easily, we can do it simply, the shortcode of the array is "a".

 Array provides facilities like random access so that we can easily select any element.

 In the array, we can easily access the data value by selecting it and if there is any mistake then we can also rectify it.

 The array is very good for complex data structures because no matter how complex it can be done very easily.

 Only the fix index has to be remembered in the array.

 The array is also used to implement elements like a stack, graph, and queue.

 You can easily store multiple values ​​in Array.


 Disadvantages

 The number of elements in the array is fixed, due to which many problems have to be faced while making corrections in it.

 Data equipment is used a lot in Array, due to which its task becomes even more complicated.

 If we delete an element in the array, then it has to be covered with the help of other elements in the space, which becomes a long and big process.

 In Array, before we can use the array, it has to be allowed storage, if we need more storage inside it, then it cannot be done in the array.

 If you have to insert and delete any operation in the array, then the complexity of the time increases a lot.

 Arrays are small in size, due to which the problem of memory wastage also arises.

 In Array, if you choose the size of the array once, then you cannot change or edit it again.



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