# Anticlockwise spiral view of diamond matrix elements in c#

Csharp program for Anticlockwise spiral view of diamond matrix elements. Here more solutions.

``````// Include namespace system
using System;
/*
Csharp program for
Anticlockwise spiral view of diamond element in matrix
*/
public class SpiralTraversal
{
// Method which is displaying the Anticlockwise spiral
// Of matrix in diamond(mid) element
public void spiralView(int[, ] matrix, int x,
int y, int p, int q, int k)
{
// Find the middle column
var midCol = y + ((int)((q - y) / 2));
// Get middle row (valid for odd square matrix)
var midRow = midCol;
// Matrix are divided into 4 section
// Starting of middle row and column in form of top
// Case A
// Top to Left-bottom
var i = midCol;
var j = 0;
while (i > y && k > 0)
{
Console.Write("  " + matrix[x + j, i]);
i--;
k--;
j++;
}
// Case B
// Middle left to middle right bottom
i = y;
j = 0;
while (i <= midCol && k > 0)
{
Console.Write("  " + matrix[(midRow) + j, i]);
i++;
k--;
j++;
}
// Case C
// Middle bottom to middle right side
i = midCol + 1;
j = 1;
while (i <= q && k > 0)
{
Console.Write("  " + matrix[(p) - j, i]);
i++;
k--;
j++;
}
// Case D
// Middle right side to  top middle
i = q - 1;
j = 1;
while (i > midCol && k > 0)
{
Console.Write("  " + matrix[(midRow) - j, i]);
i--;
k--;
j++;
}
if (x + 1 <= p - 1 && k > 0)
{
// Recursive call
this.spiralView(matrix, x + 1, y + 1, p - 1, q - 1, k);
}
}
public void diamondAnticlockwise(int[, ] matrix)
{
var row = matrix.GetLength(0);
var col = matrix.GetLength(1);
// Check whether the given matrix is a valid odd shape or not
if (row != col || col % 2 == 0)
{
// When Yes not a valid size
Console.WriteLine("\nNot a valid perfect Odd square matrix");
return;
}
// (row*col)-((col+1)/2)*4 are provide the value of number of
// Diamond element
this.spiralView(matrix, 0, 0, row - 1,
col - 1, (row * col) - (col + 1) / 2 * 4);
}
public static void Main(String[] args)
{
// Define matrix
int[, ] matrix = {
{
1 , 2 , 3 , 4 , 5
},
{
6 , 7 , 8 , 9 , 10
},
{
11 , 12 , -1 , 15 , 16
},
{
17 , 18 , 19 , 20 , 21
},
{
22 , 23 , 24 , 25 , 26
}
};
}
}``````

Output

``  3  7  11  18  24  20  16  9  8  12  19  15  -1``

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