What is Array?

Array, a data structure in C. See in details about it in this article.

Array:

Array is a contiguous data structure in C, yet simplest form of data structure in C. That means, it stores all the variables in a linear manner, one after another. When you declare a variable, it is stored in memory at random memory location, but if you want to group the variables together, you have to use array.

Array is a collection of elements of same datatypes.

If you declare variables like this:

int marks1,marks2,marks3;

It is advisable to use array and declare them like this:

int marks[3];

It will make 3 variables of marks i.e. mark[0],mark[1],mark[2]. Remember that in C indexing starts with 0. That means, first element will be 0, second will be 1 and so on.

You can declare and assign value to array elements in many ways.

int a[3];

a[0]=50;

a[1]=60;

a[2]=58;

Or

int a[3]={50,60,58};

The elements of array share memory location together, that you can see in this table below.