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.
C++
// C++ Program to check if two// given matrices are identical#include <bits/stdc++.h>#define N 4using namespace std;// This function returns 1 if A[][] and B[][] are identical// otherwise returns 0int 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 <stdio.h>#define N 4// This function returns 1 if A[][] and B[][] are identical// otherwise returns 0int 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 identicalclass 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 identicalN = 4 # This function returns 1# if A[][] and B[][] are identical# otherwise returns 0def 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 codeA= [ [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 identicalusing 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
<?php// PHP Program to check if two// given matrices are identical// function returns 1 if A[][]// and B[][] are identical// otherwise returns 0function areSame($A, $B){ for($i = 0; $i < 4; $i++) for ($j = 0; $j < 4; $j++) if ($A[$i][$j] != $B[$i][$j]) return 0; return 1;}// Driver Code$A = array(array(1, 1, 1, 1), array(2, 2, 2, 2), array(3, 3, 3, 3), array(4, 4, 4, 4));$B = array(array(1, 1, 1, 1), array(2, 2, 2, 2), array(3, 3, 3, 3), array(4, 4, 4, 4)); if (areSame($A, $B) == 1) echo "Matrices are identical"; else echo "Matrices are not identical"; // This code is contributed by Anuj_67?> |
Javascript
<script>// Javascript Program to check if two// given matrices are identicalconst N = 4;// This function returns 1 if A[][]// and B[][] are identical// otherwise returns 0function areSame(A, B){ let 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;} let A = [ [1, 1, 1, 1], [2, 2, 2, 2], [3, 3, 3, 3], [4, 4, 4, 4]]; let B = [ [1, 1, 1, 1], [2, 2, 2, 2], [3, 3, 3, 3], [4, 4, 4, 4]]; if (areSame(A, B)) document.write("Matrices are identical"); else document.write("Matrices are not identical");</script> |
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?
The time complexity of the above program is O(n2).
The auxiliary space of the above program is O(1).
Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.
