Replace corner element in matrix
Here given code implementation process.
/*
C Program
+ Replace corner element in matrix
*/
#include <stdio.h>
#define ROW 7
#define COL 7
//Left top to bottom
void left_to_bottom(int matrix[ROW][COL],int mid)
{
int temp=0;
for (int i = mid+1; i < COL ; ++i)
{
for (int j = 0,k=i; j < mid && i+j < COL && k < ROW; ++j,k++)
{
temp = matrix[j][i+j];
matrix[j][i+j]= matrix[k][j] ;
matrix[k][j] = temp;
}
}
}
void right_to_top(int matrix[ROW][COL],int mid)
{
int temp=0;
for (int i = mid-1,l=mid+1; i >= 0 ; --i,l++)
{
for (int j = 0,k=COL-1; j < mid && i-j >=0 && k >mid && l+j <ROW; ++j,k--)
{
temp = matrix[j][i-j] ;
matrix[j][i-j] = matrix[l+j][k] ;
matrix[l+j][k] = temp;
}
}
}
//Display matrix elements
void show_data(int arr[][COL])
{
for (int i = 0; i < ROW; ++i)
{
for (int j = 0; j < COL; ++j)
{
printf("%4d",arr[i][j] );
}
printf("\n");
}
printf("\n");
}
void replace_corner(int matrix[ROW][COL])
{
if(ROW != COL || COL % 2 == 0)
{
printf("\nNot a valid perfect Odd square matrix");
return;
}
int mid=(COL)/2;
left_to_bottom(matrix,mid);
right_to_top(matrix,mid);
}
int main(){
int matrix[ROW][COL] = {
{1, 2, 3, 4, 5 ,6, 7},
{8, 9, 10, 11, 12, 13, 14},
{15, 16, 17, 18, 19, 20, 21},
{22, 23, 24, 25, 26, 27, 28},
{29, 30, 31, 32, 33, 34, 35},
{36, 37, 38, 39, 40, 41, 42},
{43, 44, 45, 46, 47, 48, 49}
};
show_data(matrix);
replace_corner(matrix);
show_data(matrix);
return 0;
}
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
/*
C++ Program
Replace corner element in matrix
*/
#include<iostream>
#define ROW 7
#define COL 7
using namespace std;
class MyMatrix {
public:
int rows;
int cols;
MyMatrix() {
//Get the size of matrix
this->rows = ROW;
this->cols = COL;
}
//Left top to bottom
void left_to_bottom(int matrix[][COL], int mid) {
int temp = 0;
for (int i = mid + 1; i < this->cols; ++i) {
for (int j = 0, k = i; j < mid && i + j < this->cols && k < this->rows; ++j, k++) {
temp = matrix[j][i + j];
matrix[j][i + j] = matrix[k][j];
matrix[k][j] = temp;
}
}
}
void right_to_top(int matrix[][COL], int mid) {
int temp = 0;
for (int i = mid - 1, l = mid + 1; i >= 0; --i, l++) {
for (int j = 0, k = this->cols - 1; j < mid && i - j >= 0 && k > mid && l + j < this->rows; ++j, k--) {
temp = matrix[j][i - j];
matrix[j][i - j] = matrix[l + j][k];
matrix[l + j][k] = temp;
}
}
}
//Display matrix elements
void show_data(int arr[][COL]) {
for (int i = 0; i < this->rows; ++i) {
for (int j = 0; j < this->cols; ++j) {
cout << " " << arr[i][j];
}
cout << "\n";
}
cout << "\n";
}
void replace_corner(int matrix[][COL]) {
if (this->rows != this->cols || this->cols % 2 == 0) {
cout << "\nNot a valid perfect Odd square matrix";
return;
}
int mid = (this->cols) / 2;
this->left_to_bottom(matrix, mid);
this->right_to_top(matrix, mid);
}
};
int main() {
int matrix[][COL] = {
{
1,
2,
3,
4,
5,
6,
7
},
{
8,
9,
10,
11,
12,
13,
14
},
{
15,
16,
17,
18,
19,
20,
21
},
{
22,
23,
24,
25,
26,
27,
28
},
{
29,
30,
31,
32,
33,
34,
35
},
{
36,
37,
38,
39,
40,
41,
42
},
{
43,
44,
45,
46,
47,
48,
49
}
};
MyMatrix obj ;
obj.show_data(matrix);
obj.replace_corner(matrix);
obj.show_data(matrix);
return 0;
}
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
/*
Java Program
Replace corner element in matrix
*/
public class MyMatrix {
public int rows;
public int cols;
public MyMatrix(int [][]matrix)
{
//Get the size of matrix
rows = matrix.length;
cols = matrix[0].length;
}
//Left top to bottom
public void left_to_bottom(int [][]matrix,int mid)
{
int temp=0;
for (int i = mid+1; i < cols ; ++i)
{
for (int j = 0,k=i; j < mid && i+j < cols && k < rows; ++j,k++)
{
temp = matrix[j][i+j];
matrix[j][i+j]= matrix[k][j] ;
matrix[k][j] = temp;
}
}
}
public void right_to_top(int [][]matrix,int mid)
{
int temp=0;
for (int i = mid-1,l=mid+1; i >= 0 ; --i,l++)
{
for (int j = 0,k=cols-1; j < mid && i-j >=0 && k >mid && l+j <rows; ++j,k--)
{
temp = matrix[j][i-j] ;
matrix[j][i-j] = matrix[l+j][k] ;
matrix[l+j][k] = temp;
}
}
}
//Display matrix elements
public void show_data(int [][]arr)
{
for (int i = 0; i < rows; ++i)
{
for (int j = 0; j < cols; ++j)
{
System.out.print(" "+arr[i][j] );
}
System.out.print("\n");
}
System.out.print("\n");
}
public void replace_corner(int [][]matrix)
{
if(rows != cols || cols % 2 == 0)
{
System.out.print("\nNot a valid perfect Odd square matrix");
return;
}
int mid=(cols)/2;
left_to_bottom(matrix,mid);
right_to_top(matrix,mid);
}
public static void main(String[] args) {
//Define matrix
int [][]matrix = {
{1, 2, 3, 4, 5 ,6, 7},
{8, 9, 10, 11, 12, 13, 14},
{15, 16, 17, 18, 19, 20, 21},
{22, 23, 24, 25, 26, 27, 28},
{29, 30, 31, 32, 33, 34, 35},
{36, 37, 38, 39, 40, 41, 42},
{43, 44, 45, 46, 47, 48, 49}
};
MyMatrix obj = new MyMatrix(matrix);
obj.show_data(matrix);
obj.replace_corner(matrix);
obj.show_data(matrix);
}
}
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
/*
C# Program
Replace corner element in matrix
*/
using System;
public class MyMatrix {
int rows;
int cols;
MyMatrix(int[,] matrix) {
//Get the size of matrix
rows = matrix.GetLength(0);
cols = matrix.GetLength(1);
}
//Left top to bottom
public void left_to_bottom(int[,] matrix, int mid) {
int temp = 0;
for (int i = mid + 1; i < cols; ++i) {
for (int j = 0, k = i; j < mid && i + j < cols && k < rows; ++j, k++) {
temp = matrix[j,i + j];
matrix[j,i + j] = matrix[k,j];
matrix[k,j] = temp;
}
}
}
public void right_to_top(int[,] matrix, int mid) {
int temp = 0;
for (int i = mid - 1, l = mid + 1; i >= 0; --i, l++) {
for (int j = 0, k = cols - 1; j < mid && i - j >= 0 && k > mid && l + j < rows; ++j, k--) {
temp = matrix[j,i - j];
matrix[j,i - j] = matrix[l + j,k];
matrix[l + j,k] = temp;
}
}
}
//Display matrix elements
public void show_data(int[,] arr) {
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < cols; ++j) {
Console.Write(" " + arr[i,j]);
}
Console.Write("\n");
}
Console.Write("\n");
}
public void replace_corner(int[,] matrix) {
if (rows != cols || cols % 2 == 0) {
Console.Write("\nNot a valid perfect Odd square matrix");
return;
}
int mid = (cols) / 2;
left_to_bottom(matrix, mid);
right_to_top(matrix, mid);
}
public static void Main(String[] args) {
int[,]
//Define matrix
matrix = {
{
1,
2,
3,
4,
5,
6,
7
},
{
8,
9,
10,
11,
12,
13,
14
},
{
15,
16,
17,
18,
19,
20,
21
},
{
22,
23,
24,
25,
26,
27,
28
},
{
29,
30,
31,
32,
33,
34,
35
},
{
36,
37,
38,
39,
40,
41,
42
},
{
43,
44,
45,
46,
47,
48,
49
}
};
MyMatrix obj = new MyMatrix(matrix);
obj.show_data(matrix);
obj.replace_corner(matrix);
obj.show_data(matrix);
}
}
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
<?php
/*
Php Program
Replace corner element in matrix
*/
class MyMatrix {
public $rows;
public $cols;
function __construct($matrix) {
//Get the size of matrix
$this->rows = count($matrix);
$this->cols = count($matrix[0]);
}
//Left top to bottom
public function left_to_bottom(&$matrix, $mid) {
$temp = 0;
for ($i = $mid + 1; $i < $this->cols; ++$i) {
for ($j = 0, $k = $i; $j < $mid && $i + $j < $this->cols && $k < $this->rows; ++$j, $k++) {
$temp = $matrix[$j][$i + $j];
$matrix[$j][$i + $j] = $matrix[$k][$j];
$matrix[$k][$j] = $temp;
}
}
}
public function right_to_top(&$matrix, $mid) {
$temp = 0;
for ($i = $mid - 1, $l = $mid + 1; $i >= 0; --$i, $l++) {
for ($j = 0, $k = $this->cols - 1; $j < $mid && $i - $j >= 0 && $k > $mid && $l + $j < $this->rows; ++$j, $k--) {
$temp = $matrix[$j][$i - $j];
$matrix[$j][$i - $j] = $matrix[$l + $j][$k];
$matrix[$l + $j][$k] = $temp;
}
}
}
//Display matrix elements
public function show_data($arr) {
for ($i = 0; $i < $this->rows; ++$i) {
for ($j = 0; $j < $this->cols; ++$j) {
echo(" ". $arr[$i][$j]);
}
echo("\n");
}
echo("\n");
}
public function replace_corner(&$matrix) {
if ($this->rows != $this->cols || $this->cols % 2 == 0) {
echo("\nNot a valid perfect Odd square matrix");
return;
}
$mid = intval(($this->cols) / 2);
$this->left_to_bottom($matrix, $mid);
$this->right_to_top($matrix, $mid);
}
};
function main() {
//Define matrix
$matrix = array(
array(1, 2, 3, 4, 5, 6, 7),
array(8, 9, 10, 11, 12, 13, 14),
array(15, 16, 17, 18, 19, 20, 21),
array(22, 23, 24, 25, 26, 27, 28),
array(29, 30, 31, 32, 33, 34, 35),
array(36, 37, 38, 39, 40, 41, 42),
array(43, 44, 45, 46, 47, 48, 49)
);
$obj = new MyMatrix($matrix);
$obj->show_data($matrix);
$obj->replace_corner($matrix);
$obj->show_data($matrix);
}
main();
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
/*
Node Js Program
Replace corner element in matrix
*/
class MyMatrix {
;;
constructor(matrix) {
//Get the size of matrix
this.rows = matrix.length;
this.cols = matrix[0].length;
}
//Left top to bottom
left_to_bottom(matrix, mid) {
var temp = 0;
for (var i = mid + 1; i < this.cols; ++i) {
for (var j = 0,k = i; j < mid && i + j < this.cols && k < this.rows; ++j, k++) {
temp = matrix[j][i + j];
matrix[j][i + j] = matrix[k][j];
matrix[k][j] = temp;
}
}
}
right_to_top(matrix, mid) {
var temp = 0;
for (var i = mid - 1,l = mid + 1; i >= 0; --i, l++) {
for (var j = 0,k = this.cols - 1; j < mid && i - j >= 0 && k > mid && l + j < this.rows; ++j, k--) {
temp = matrix[j][i - j];
matrix[j][i - j] = matrix[l + j][k];
matrix[l + j][k] = temp;
}
}
}
//Display matrix elements
show_data(arr) {
for (var i = 0; i < this.rows; ++i) {
for (var j = 0; j < this.cols; ++j) {
process.stdout.write(" " + arr[i][j]);
}
process.stdout.write("\n");
}
process.stdout.write("\n");
}
replace_corner(matrix) {
if (this.rows != this.cols || this.cols % 2 == 0) {
process.stdout.write("\nNot a valid perfect Odd square matrix");
return;
}
var mid = parseInt((this.cols) / 2);
this.left_to_bottom(matrix, mid);
this.right_to_top(matrix, mid);
}
}
function main(args) {
//Define matrix
var matrix = [
[1, 2, 3, 4, 5, 6, 7],
[8, 9, 10, 11, 12, 13, 14],
[15, 16, 17, 18, 19, 20, 21],
[22, 23, 24, 25, 26, 27, 28],
[29, 30, 31, 32, 33, 34, 35],
[36, 37, 38, 39, 40, 41, 42],
[43, 44, 45, 46, 47, 48, 49]
];
var obj = new MyMatrix(matrix);
obj.show_data(matrix);
obj.replace_corner(matrix);
obj.show_data(matrix);
}
main();
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
# Python 3 Program
# Replace corner element in matrix
class MyMatrix :
def __init__(self, matrix) :
# Get the size of matrix
self.rows = len(matrix)
self.cols = len(matrix[0])
# Left top to bottom
def left_to_bottom(self, matrix, mid) :
temp = 0
i = mid + 1
while (i < self.cols) :
j = 0
k = i
while (j < mid and i + j < self.cols and k < self.rows) :
temp = matrix[j][i + j]
matrix[j][i + j] = matrix[k][j]
matrix[k][j] = temp
j += 1
k += 1
i += 1
def right_to_top(self, matrix, mid) :
temp = 0
i = mid - 1
l = mid + 1
while (i >= 0) :
j = 0
k = self.cols - 1
while (j < mid and i - j >= 0 and k > mid and l + j < self.rows) :
temp = matrix[j][i - j]
matrix[j][i - j] = matrix[l + j][k]
matrix[l + j][k] = temp
j += 1
k -= 1
i -= 1
l += 1
# Display matrix elements
def show_data(self, arr) :
i = 0
while (i < self.rows) :
j = 0
while (j < self.cols) :
print(" ", arr[i][j], end = "")
j += 1
print("\n", end = "")
i += 1
print("\n", end = "")
def replace_corner(self, matrix) :
if (self.rows != self.cols or self.cols % 2 == 0) :
print("\nNot a valid perfect Odd square matrix", end = "")
return
mid = int((self.cols) / 2)
self.left_to_bottom(matrix, mid)
self.right_to_top(matrix, mid)
def main() :
matrix = [
[1, 2, 3, 4, 5, 6, 7],
[8, 9, 10, 11, 12, 13, 14],
[15, 16, 17, 18, 19, 20, 21],
[22, 23, 24, 25, 26, 27, 28],
[29, 30, 31, 32, 33, 34, 35],
[36, 37, 38, 39, 40, 41, 42],
[43, 44, 45, 46, 47, 48, 49]
]
obj = MyMatrix(matrix)
obj.show_data(matrix)
obj.replace_corner(matrix)
obj.show_data(matrix)
if __name__ == "__main__":
main()
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
# Ruby Program
# Replace corner element in matrix
class MyMatrix
# Define the accessor and reader of class MyMatrix
attr_reader :rows, :cols
attr_accessor :rows, :cols
def initialize(matrix)
# Get the size of matrix
@rows = matrix.length
@cols = matrix[0].length
end
# Left top to bottom
def left_to_bottom(matrix, mid)
temp = 0
i = mid + 1
while (i < @cols)
j = 0
k = i
while (j < mid and i + j < @cols and k < @rows)
temp = matrix[j][i + j]
matrix[j][i + j] = matrix[k][j]
matrix[k][j] = temp
j += 1
k += 1
end
i += 1
end
end
def right_to_top(matrix, mid)
temp = 0
i = mid - 1
l = mid + 1
while (i >= 0)
j = 0
k = @cols - 1
while (j < mid and i - j >= 0 and k > mid and l + j < @rows)
temp = matrix[j][i - j]
matrix[j][i - j] = matrix[l + j][k]
matrix[l + j][k] = temp
j += 1
k -= 1
end
i -= 1
l += 1
end
end
# Display matrix elements
def show_data(arr)
i = 0
while (i < @rows)
j = 0
while (j < @cols)
print(" ", arr[i][j])
j += 1
end
print("\n")
i += 1
end
print("\n")
end
def replace_corner(matrix)
if (@rows != @cols or @cols % 2 == 0)
print("\nNot a valid perfect Odd square matrix")
return
end
mid = (@cols) / 2
self.left_to_bottom(matrix, mid)
self.right_to_top(matrix, mid)
end
end
def main()
matrix = [
[1, 2, 3, 4, 5, 6, 7],
[8, 9, 10, 11, 12, 13, 14],
[15, 16, 17, 18, 19, 20, 21],
[22, 23, 24, 25, 26, 27, 28],
[29, 30, 31, 32, 33, 34, 35],
[36, 37, 38, 39, 40, 41, 42],
[43, 44, 45, 46, 47, 48, 49]
]
obj = MyMatrix.new(matrix)
obj.show_data(matrix)
obj.replace_corner(matrix)
obj.show_data(matrix)
end
main()
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
/*
Scala Program
Replace corner element in matrix
*/
class MyMatrix(var rows: Int,var cols: Int) {
def this(matrix: Array[Array[Int]]) {
//Get the size of matrix
this(matrix.length,matrix(0).length);
}
//Left top to bottom
def left_to_bottom(matrix: Array[Array[Int]], mid: Int): Unit = {
var temp: Int = 0;
var i: Int = mid + 1;
while (i < this.cols) {
var j: Int = 0;
var k: Int = i;
while (j < mid && i + j < this.cols && k < this.rows) {
temp = matrix(j)(i + j);
matrix(j)(i + j) = matrix(k)(j);
matrix(k)(j) = temp;
j += 1;
k += 1;
}
i += 1;
}
}
def right_to_top(matrix: Array[Array[Int]], mid: Int): Unit = {
var temp: Int = 0;
var i: Int = mid - 1;
var l: Int = mid + 1;
while (i >= 0) {
var j: Int = 0;
var k: Int = this.cols - 1;
while (j < mid && i - j >= 0 && k > mid && l + j < this.rows) {
temp = matrix(j)(i - j);
matrix(j)(i - j) = matrix(l + j)(k);
matrix(l + j)(k) = temp;
j += 1;
k -= 1;
}
i -= 1;
l += 1;
}
}
//Display matrix elements
def show_data(arr: Array[Array[Int]]): Unit = {
var i: Int = 0;
while (i < this.rows) {
var j: Int = 0;
while (j < this.cols) {
print(" " + arr(i)(j));
j += 1;
}
print("\n");
i += 1;
}
print("\n");
}
def replace_corner(matrix: Array[Array[Int]]): Unit = {
if (this.rows != this.cols || this.cols % 2 == 0) {
print("\nNot a valid perfect Odd square matrix");
return;
}
val mid: Int = ((this.cols) / 2).toInt;
this.left_to_bottom(matrix, mid);
this.right_to_top(matrix, mid);
}
}
object Main {
def main(args: Array[String]): Unit = {
val matrix: Array[Array[Int]] = Array(
Array(1, 2, 3, 4, 5, 6, 7),
Array(8, 9, 10, 11, 12, 13, 14),
Array(15, 16, 17, 18, 19, 20, 21),
Array(22, 23, 24, 25, 26, 27, 28),
Array(29, 30, 31, 32, 33, 34, 35),
Array(36, 37, 38, 39, 40, 41, 42),
Array(43, 44, 45, 46, 47, 48, 49));
val obj: MyMatrix = new MyMatrix(matrix);
obj.show_data(matrix);
obj.replace_corner(matrix);
obj.show_data(matrix);
}
}
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
/*
Swift 4 Program
Replace corner element in matrix
*/
class MyMatrix {
var rows : Int;
var cols : Int;
init(_ matrix: [[Int]]) {
//Get the size of matrix
self.rows = matrix.count;
self.cols = matrix[0].count;
}
//Left top to bottom
func left_to_bottom(_ matrix: inout [[Int]], _ mid: Int) {
var temp: Int = 0;
var i: Int = mid + 1;
while (i < self.cols) {
var j: Int = 0;
var k: Int = i;
while (j < mid && i + j < self.cols && k < self.rows) {
temp = matrix[j][i + j];
matrix[j][i + j] = matrix[k][j];
matrix[k][j] = temp;
j += 1;
k += 1;
}
i += 1;
}
}
func right_to_top(_ matrix: inout[[Int]], _ mid: Int) {
var temp: Int = 0;
var i: Int = mid - 1;
var l: Int = mid + 1;
while (i >= 0) {
var j: Int = 0;
var k: Int = self.cols - 1;
while (j < mid && i - j >= 0 && k > mid && l + j < self.rows) {
temp = matrix[j][i - j];
matrix[j][i - j] = matrix[l + j][k];
matrix[l + j][k] = temp;
j += 1;
k -= 1;
}
i -= 1;
l += 1;
}
}
//Display matrix elements
func show_data(_ arr: [[Int]]) {
var i: Int = 0;
while (i < self.rows) {
var j: Int = 0;
while (j < self.cols) {
print(" ", arr[i][j], terminator: "");
j += 1;
}
print("\n", terminator: "");
i += 1;
}
print("\n", terminator: "");
}
func replace_corner(_ matrix: inout [[Int]]) {
if (self.rows != self.cols || self.cols % 2 == 0) {
print("\nNot a valid perfect Odd square matrix", terminator: "");
return;
}
let mid: Int = (self.cols) / 2;
self.left_to_bottom(&matrix, mid);
self.right_to_top(&matrix, mid);
}
}
func main() {
var matrix: [
[Int]
] = [
[1, 2, 3, 4, 5, 6, 7],
[8, 9, 10, 11, 12, 13, 14],
[15, 16, 17, 18, 19, 20, 21],
[22, 23, 24, 25, 26, 27, 28],
[29, 30, 31, 32, 33, 34, 35],
[36, 37, 38, 39, 40, 41, 42],
[43, 44, 45, 46, 47, 48, 49]
];
let obj: MyMatrix = MyMatrix(matrix);
obj.show_data(matrix);
obj.replace_corner(&matrix);
obj.show_data(matrix);
}
main();
Output
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
36 37 38 39 40 41 42
43 44 45 46 47 48 49
49 42 35 4 29 36 43
48 41 10 11 12 37 44
47 16 17 18 19 20 45
22 23 24 25 26 27 28
5 30 31 32 33 34 3
6 13 38 39 40 9 2
7 14 21 46 15 8 1
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