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C Two Dimensional Array

What Is Two Dimensional Array

An array, which has two subscript is known as two dimensional array. By using two-dimensional arrays, programmers can manipulate data structures. It has two subscripts, first one represents row and second one represents column. Subscripts are always starts with 0.

c two dimensional array

Syntax - Two Dimensional Array

Syntax
data_type varname[size1][size2];

Initialisation Methods - Two Dimensional Array

Initialisation-1
int matrix[3][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
Initialisation-2
int matrix[3][3] = {1, 2, 3, 4, 5, 6, 7, 8, 9};

Unsized Initialisation - Two Dimensional Array

Initialisation-3
int matrix[][3] = {1, 2, 3, 4, 5, 6, 7, 8, 9};

Program - Two Dimensional Array

two-dimensional-array.c
#include <stdio.h>
int main()
{
int matrix[3][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}, i, j;
for(i = 0; i < 3; i++)
{
for(j = 0; j < 3; j++)
{
printf("%2d ", matrix[i] [j]);
}
printf("\n");
}
return 0;
}
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  • 7 8 9

Note:

The above program clearly demonstrates the concept of two dimensional array.

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