C++ program to add two matrix using multi-dimensional arrays

This c program add two matrices i.e. compute the sum of two matrices and then print it. Firstly user will be asked to enter the order of matrix ( number of rows and columns ) and then two matrices. For example if the user entered order as 2, 2 i.e. two rows and two columns and matrices as

First Matrix :
2       2
2       4
Second matrix :
4        5
-1       5
then output of the program ( sum of First and Second matrix ) will be
6        7
1        9

Algorithm:

Rule: Addition of two matrixes is only possible if both matrixes are of same size.
Suppose two matrixes A and B is of same size m X n
Sum of two marixes is defined as
(A + B)ij = Aij + Bij
Where 1 ≤ i ≤ m and 1 ≤ j ≤ n

For example: Suppose two matrix A and B of size of 2 X 3 is as follow:

Example: C++ program to add two matrix using multi-dimensional arrays

Output

Enter number of rows (between 1 and 20): 2
Enter number of columns (between 1 and 20): 2

Enter elements of 1st matrix:
Enter element a11 : 2
Enter element a12 : 4
Enter element a21 : 6
Enter element a22 : 2

Enter elements of 2nd matrix:
Enter element b11 : 2
Enter element b12 : 5
Enter element b21 : 9
Enter element b22 : 7

Sum of two matrix is:
4      9
15    9