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# 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:

## C++

 `// C++ Program to check if two``// given matrices are identical``#include ``#define N 4``using` `namespace` `std;`` ` `// This function returns 1 if A[][] and B[][] are identical``// otherwise returns 0``int` `areSame(``int` `A[][N], ``int` `B[][N])``{``    ``int` `i, j;``    ``for` `(i = 0; i < N; i++)``        ``for` `(j = 0; j < N; j++)``            ``if` `(A[i][j] != B[i][j])``                ``return` `0;``    ``return` `1;``}`` ` `int` `main()``{``    ``int` `A[N][N] = { {1, 1, 1, 1},``                    ``{2, 2, 2, 2},``                    ``{3, 3, 3, 3},``                    ``{4, 4, 4, 4}};`` ` `    ``int` `B[N][N] = { {1, 1, 1, 1},``                    ``{2, 2, 2, 2},``                    ``{3, 3, 3, 3},``                    ``{4, 4, 4, 4}};`` ` `    ``if` `(areSame(A, B))``        ``cout << ``"Matrices are identical"``;``    ``else``        ``cout << ``"Matrices are not identical"``;``    ``return` `0;``}``//This code is contributed by Shivi_Aggarwal`

## C

 `// C Program to check if two ``// given matrices are identical``#include ``#define N 4`` ` `// This function returns 1 if A[][] and B[][] are identical``// otherwise returns 0``int` `areSame(``int` `A[][N], ``int` `B[][N])``{``    ``int` `i, j;``    ``for` `(i = 0; i < N; i++)``        ``for` `(j = 0; j < N; j++)``            ``if` `(A[i][j] != B[i][j])``                ``return` `0;``    ``return` `1;``}`` ` `int` `main()``{``    ``int` `A[N][N] = { {1, 1, 1, 1},``                    ``{2, 2, 2, 2},``                    ``{3, 3, 3, 3},``                    ``{4, 4, 4, 4}};`` ` `    ``int` `B[N][N] = { {1, 1, 1, 1},``                    ``{2, 2, 2, 2},``                    ``{3, 3, 3, 3},``                    ``{4, 4, 4, 4}};`` ` `    ``if` `(areSame(A, B))``        ``printf``(``"Matrices are identical"``);``    ``else``        ``printf``(``"Matrices are not identical"``);``    ``return` `0;``}`

## Java

 `// Java Program to check if two ``// given matrices are identical`` ` `class` `GFG``{``    ``static` `final` `int` `N = ``4``;``     ` `    ``// This function returns 1 if A[][] ``    ``// and B[][] are identical``    ``// otherwise returns 0``    ``static` `int` `areSame(``int` `A[][], ``int` `B[][])``    ``{``        ``int` `i, j;``        ``for` `(i = ``0``; i < N; i++)``            ``for` `(j = ``0``; j < N; j++)``                ``if` `(A[i][j] != B[i][j])``                    ``return` `0``;``            ``return` `1``;``    ``}``     ` `    ``// Driver code ``    ``public` `static` `void` `main (String[] args)``    ``{``        ``int` `A[][] = { {``1``, ``1``, ``1``, ``1``},``                      ``{``2``, ``2``, ``2``, ``2``},``                      ``{``3``, ``3``, ``3``, ``3``},``                      ``{``4``, ``4``, ``4``, ``4``}};``     ` `        ``int` `B[][] = { {``1``, ``1``, ``1``, ``1``},``                      ``{``2``, ``2``, ``2``, ``2``},``                      ``{``3``, ``3``, ``3``, ``3``},``                      ``{``4``, ``4``, ``4``, ``4``}};``     ` `        ``if` `(areSame(A, B) == ``1``)``            ``System.out.print(``"Matrices are identical"``);``        ``else``            ``System.out.print(``"Matrices are not identical"``);``    ``}``}`` ` `// This code is contributed by Anant Agarwal.`

## Python3

 `# Python3 Program to check if two``# given matrices are identical`` ` `N ``=` `4``  ` `# This function returns 1``# if A[][] and B[][] are identical``# otherwise returns 0``def` `areSame(A,B):``     ` `    ``for` `i ``in` `range``(N):``        ``for` `j ``in` `range``(N):``            ``if` `(A[i][j] !``=` `B[i][j]):``                ``return` `0``    ``return` `1`` ` `# driver code``A``=` `[ [``1``, ``1``, ``1``, ``1``],``    ``[``2``, ``2``, ``2``, ``2``],``    ``[``3``, ``3``, ``3``, ``3``],``    ``[``4``, ``4``, ``4``, ``4``]]``  ` `B``=` `[ [``1``, ``1``, ``1``, ``1``],``    ``[``2``, ``2``, ``2``, ``2``],``    ``[``3``, ``3``, ``3``, ``3``],``    ``[``4``, ``4``, ``4``, ``4``]]``                     ` `if` `(areSame(A, B)``=``=``1``):``    ``print``(``"Matrices are identical"``)``else``:``    ``print``(``"Matrices are not identical"``)`` ` `# This code is contributed``# by Anant Agarwal.`

## C#

 `// C# Program to check if two ``// given matrices are identical``using` `System;`` ` `class` `GFG {``     ` `    ``static` `int` `N = 4;``     ` `    ``// This function returns 1 if A[][] ``    ``// and B[][] are identical``    ``// otherwise returns 0``    ``static` `int` `areSame(``int` `[,]A, ``int` `[,]B)``    ``{``        ``int` `i, j;``        ``for` `(i = 0; i < N; i++)``            ``for` `(j = 0; j < N; j++)``                ``if` `(A[i,j] != B[i,j])``                    ``return` `0;``            ``return` `1;``    ``}``     ` `    ``// Driver code ``    ``public` `static` `void` `Main ()``    ``{``        ``int` `[,]A = { {1, 1, 1, 1},``                    ``{2, 2, 2, 2},``                    ``{3, 3, 3, 3},``                    ``{4, 4, 4, 4}};``     ` `        ``int` `[,]B = { {1, 1, 1, 1},``                    ``{2, 2, 2, 2},``                    ``{3, 3, 3, 3},``                    ``{4, 4, 4, 4}};``     ` `        ``if` `(areSame(A, B) == 1)``            ``Console.WriteLine(``"Matrices "``                      ``+ ``"are identical"``);  ``        ``else``            ``Console.WriteLine(``"Matrices "``                  ``+ ``"are not identical"``);``    ``}``}`` ` `// This code is contributed by anuj_67.`

## PHP

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## Javascript

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Output

`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).