Write C#.Net program to find mirror image and inverted mirror image of matrix

Raja J

Help me on this.
I need the code for C#.Net for the question below.

Write C#.NET Code to find mirror image and inverted mirror image of matrix.

INPUT
11 12 13
21 22 23
31 32 33

OUTPUT
MIRROR IMAGE
13 12 11
23 22 21
33 32 31

INVERTED MIRROR IMAGE
33 32 31
23 22 21
13 12 11

Can anyone write the code for this. Thanks for advance.

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes14y ago
All you need to do is to iterate through both the rows and the columns of the matrix in the reverse direction. Just add another method to the program to do this:

using System;

class Program
{
static void Main()
{
int[,] matrix = new int[3,3]{ {11, 12, 13}, {21, 22, 23}, {31, 32,33} };
PrintMirrorImage(matrix);
Console.WriteLine();
PrintInvertedMirrorImage(matrix);
Console.ReadKey();
}

static void PrintMirrorImage(int[,] matrix)
{
for(int i = 0; i < matrix.GetLength(0); i++)
{
for(int j = matrix.GetLength(1) - 1; j >= 0; j--)
{
Console.Write("{0} ", matrix[i,j]);
}

Console.WriteLine();
}
}

static void PrintInvertedMirrorImage(int[,] matrix)
{
for(int i = matrix.GetLength(0) - 1; i >= 0; i--)
{
for(int j = matrix.GetLength(1) - 1; j >= 0; j--)
{
Console.Write("{0} ", matrix[i,j]);
}

Console.WriteLine();
}
}
}
Raja J14y ago
Thanks Vulpes.

But I tried i am not getting the output for inverted mirror image.

Can you please update it.

Thanks
Vulpes14y ago
Here's the code to output the mirror image:

using System;

class Program
{
static void Main()
{
int[,] matrix = new int[3,3]{ {11, 12, 13}, {21, 22, 23}, {31, 32,33} };
PrintMirrorImage(matrix);
Console.ReadKey();
}

static void PrintMirrorImage(int[,] matrix)
{
for(int i = 0; i < matrix.GetLength(0); i++)
{
for(int j = matrix.GetLength(1) - 1; j >= 0; j--)
{
Console.Write("{0} ", matrix[i,j]);
}

Console.WriteLine();
}
}
}

Let's see now if you can do the other part yourself - it's not difficult so you should be able to do it.