C Exercises: Accept two matrices and check whether they are equal
C Array: Exercise-30 with Solution
Write a program in C to accept two matrices and check whether they are equal.
Pictorial Presentation:

Sample Solution:
C Code:
#include <stdio.h>
#include <stdlib.h>
void main()
{
int arr1[50][50], brr1[50][50];
int i, j, r1, c1, r2, c2, flag =1;
printf("\n\nAccept two matrices and check whether they are equal :\n ");
printf("-----------------------------------------------------------\n");
printf("Input Rows and Columns of the 1st matrix :");
scanf("%d %d", &r1, &c1);
printf("Input Rows and Columns of the 2nd matrix :");
scanf("%d %d", &r2,&c2);
printf("Input elements in the first matrix :\n");
for(i=0;i<r1;i++)
{
for(j=0;j<c1;j++)
{
printf("element - [%d],[%d] : ",i,j);
scanf("%d",&arr1[i][j]);
}
}
printf("Input elements in the second matrix :\n");
for(i=0;i<r2;i++)
{
for(j=0;j<c2;j++)
{
printf("element - [%d],[%d] : ",i,j);
scanf("%d",&brr1[i][j]);
}
}
printf("The first matrix is :\n");
for(i=0;i<r1;i++)
{
for(j=0;j<c1 ;j++)
printf("% 4d",arr1[i][j]);
printf("\n");
}
printf("The second matrix is :\n");
for(i=0;i<r2;i++)
{
for(j=0;j<c2 ;j++)
printf("% 4d",brr1[i][j]);
printf("\n");
}
/* Comparing two matrices for equality */
if(r1 == r2 && c1 == c2)
{
printf("The Matrices can be compared : \n");
for(i=0; i<r1; i++)
{
for(j=0; j<c2; j++)
{
if(arr1[i][j] != brr1[i][j])
{
flag = 0;
break;
}
}
}
}
else
{ printf("The Matrices Cannot be compared :\n");
exit(1);
}
if(flag == 1 )
printf("Two matrices are equal.\n\n");
else
printf("But,two matrices are not equal\n\n");
}
Sample Output:
Accept two matrices and check whether they are equal : ----------------------------------------------------------- Input Rows and Columns of the 1st matrix :2 2 Input Rows and Columns of the 2nd matrix :2 2 Input elements in the first matrix : element - [0],[0] : 1 element - [0],[1] : 2 element - [1],[0] : 3 element - [1],[1] : 4 Input elements in the second matrix : element - [0],[0] : 1 element - [0],[1] : 2 element - [1],[0] : 3 element - [1],[1] : 4 The first matrix is : 1 2 3 4 The second matrix is : 1 2 3 4 The Matrices can be compared : Two matrices are equal.
Flowchart:

C Programming Code Editor:
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Previous: Write a program in C to accept a matrix and determine whether it is a sparse matrix.
Next: Write a program in C to check whether a given matrix is an identity matrix.
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C Programming: Tips of the Day
C Programming - What is the argument for printf that formats a long?
Put an l (lowercased letter L) directly before the specifier.
unsigned long n; long m; printf("%lu %ld", n, m);
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