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Initializing Two-Dimensional Arrays
Multidimensional arrays may be initialized by specifying bracketed values for each row.
Following is an array with 3 rows and each row has 4 columns.

int a[3][4] = {
{0, 1, 2, 3} , /* initializers for row indexed by 0 */

{4, 5, 6, 7} , /* initializers for row indexed by 1 */
{8, 9, 10, 11} /* initializers for row indexed by 2 */

};
The nested braces, which indicate the intended row, are optional. The following
initialization is equivalent to the previous example:
int a[3][4] = {0,1,2,3,4,5,6,7,8,9,10,11};

Accessing Two-Dimensional Array Elements
An element in a two-dimensional array is accessed by using the subscripts, i.e., row index
and column index of the array. For example:

int val = a[2][3];

The above statement will take the 4th element from the 3rd row of the array. You can
verify it in the above figure. Let us check the following program where we have used a nested
loop to handle a two-dimensional array:

#include <stdio.h>

int main ()
{

/* an array with 5 rows and 2 columns*/
int a[5][2] = { {0,0}, {1,2}, {2,4}, {3,6},{4,8}};

int i, j;

/* output each array element's value */
for ( i = 0; i < 5; i++ )

{
for ( j = 0; j < 2; j++ )

{
printf("a[%d][%d] = %d\n", i,j, a[i][j] );

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