﻿ C# Sharp Exercises: Accept two matrices and check whether they are equal - w3resource

# C# Sharp Exercises: Accept two matrices and check whether they are equal

## C# Sharp Array: Exercise-30 with Solution

Write a program in C# Sharp to accept two matrices and check whether they are equal.

Sample Solution:-

C# Sharp Code:

``````using System;
public class Exercise30
{
public static void Main()
{
int[,] arr1 = new int[50,50];
int[,] brr1 = new int[50,50];
int i, j, r1, c1, r2, c2, flag =1;

Console.Write("\n\nAccept two matrices and check whether they are equal :\n ");
Console.Write("-----------------------------------------------------------\n");

Console.Write("Input the number of rows in the 1st matrix : ");
Console.Write("Input the number of columns in  the 1st matrix : ");

Console.Write("Input the number of rows in the 2nd matrix : ");
Console.Write("Input the number of columns in  the 2nd matrix : ");

Console.Write("Input elements in the first matrix :\n");
for(i=0;i<r1;i++)
{
for(j=0;j<c1;j++)
{
Console.Write("element - [{0}],[{1}] : ",i,j);
}
}
Console.Write("Input elements in the second matrix :\n");
for(i=0;i<r2;i++)
{
for(j=0;j<c2;j++)
{
Console.Write("element - [{0}],[{1}] : ",i,j);
}
}
Console.Write("The first matrix is :\n");
for(i=0;i<r1;i++)
{
for(j=0;j<c1 ;j++)
Console.Write("{0}  ",arr1[i,j]);
Console.Write("\n");
}
Console.Write("The second matrix is :\n");
for(i=0;i<r2;i++)
{
for(j=0;j<c2 ;j++)
Console.Write("{0}  ",brr1[i,j]);
Console.Write("\n");
}

/* Comparing two matrices for equality */

if(r1 != r2 && c1 != c2)
{
Console.Write("The Matrices Cannot be compared :\n");
}
else
{
Console.Write("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;
}
}
}
if(flag == 1 )
Console.Write("Two matrices are equal.\n\n");
else
Console.Write("But,two matrices are not equal\n\n");
}
}
}
```
```

Sample Output:

```Accept two matrices and check whether they are equal :
-----------------------------------------------------------
Input the number of rows in the 1st matrix : 2
Input the number of columns in  the 1st matrix : 2
Input the number of rows in the 2nd matrix : 2
Input the number of columns in  the 2nd matrix : 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] : 5
element - [0],[1] : 6
element - [1],[0] : 7
element - [1],[1] : 8
The first matrix is :
1  2
3  4
The second matrix is :
5  6
7  8
The Matrices can be compared :
But,two matrices are not equal
```

Flowchart:

C# Sharp Code Editor: