Program to check if two given matrices are identical

The below program checks if two square matrices of size 4*4 are identical or not. For any two matrices to be equal, a number of rows and columns in both the matrix should be equal and the corresponding elements should also be equal. 

Implementation:

Matrices are identical

The program can be extended for rectangular matrices. The following post can be useful for extending this program. 
How to pass a 2D array as a parameter in C?

Time complexity: O(n²).
Auxiliary space: O(1).