- A Two-dimensional array is in the form of matrics, which contains rows and columns.
- A Two-dimensional array is in the form of matrics, which contains rows and columns.
- A 2D array a[m][n] is a table with m rows and n columns.
- It contains m x n elements.
- Row index starts from 0 to m-1 and column size starts from 0 to n-1.
- Each element has to subscripts. ie a[0][0], a[0][1],……
Syntax
DATATYPE ARRAYNAME[ROWSIZE][COLUMN SIZE];
Example
int m[10][10];
- Here m is an integer array that can store 10 rows and columns.
- It contains 100 elements.
- location starts from m[0][0],m[0][1].........,m[9][9].
2D Array Initialization
- int m[2][3] = {{10,15,20},{20,14,25}};
- Total bytes = No. of rows * No. of columns * Size of datatype
- Total bytes = 2*3*2 = 12
Sample Programs
- C program to input 2 matrices and find the sum of matrices.
- C program to input 2 matrices and find the difference of two matrices.
- C program to input 2 matrices and find the multiplication of matrices.