What is Multi Dimensional 3D Arrays and Declaration, Initialization of Multi Dimensional Array in Data Structure using C and C++

What is Multi Dimensional 3D Array in Data Structure Using C and C++

C language also facilitates the arrays of three or more dimensions depending on compiler. The Multi Dimensional array is controlled by multiple subscripts. @ upbed.in

Declaration of Multi Dimensional Arrays in Data Structure Using C and C++

We can declare a multidimensional array as follows in general:

data type array name[size 1] [size 2] [size ]………[size n]

We can think of a 3-D array of 2-D arrays. For Example if we have an array-
int ar[2][4][3] ;
We can think of this as an array which consists of two 2-D arrays and each of those 2-D arrays has four rows and 3 columns.

[0]

[0][0]	[0][1]	[0][2]
[1][0]	[1][1]	[1][2]
[2][0]	[2][1]	[2][2]
[3][0]	[3][1]	[3][2]

[1]

[0][0]	[0][1]	[0][2]
[1][0]	[1][1]	[1][2]
[2][0]	[2][1]	[2][2]
[3][0]	[3][1]	[3][2]

The individual elements are-:
ar[0][0][0], ar[0][0][1], ar[0][0][2], ar[0][1][0],………………………….ar[0][3][2]
ar[1][0][0], ar[1][0][1], ar[1][0][2], ar[1][1][0],……….…………………ar[1][3][2]

The total number of elements in the above array = 2 * 4 * 3 = 24

Initialization of Multi Dimensional Array in Data Structure using C and C++

The initialization of 3-D array is as follows:

int ar[2][4][3] = {
{
{ 1, 2, 3 } ,
{ 6, 6, 9 } ,
{ 5, 0, 9 } ,
{ 3, 6, 2 }
},
{
{ 2, 9, 0 } ,
{ 4, 7, 3 } ,
{ 6, 4, 6 } ,
{ 5, 9, 2 }
}
}