Print K’th element in spiral form of matrix
Here given code implementation process.
/*
C Program
+ Print K’th element in spiral form of matrix
*/
#include<stdio.h>
#define ROW 7
#define COL 6
void spiral(int data[ROW][COL],
int s_row,
int s_col,
int e_row,
int e_col,
int k)
{
int result=0;
//Left to right
for (int i = s_col; i <=e_col && k > 0 ; ++i,k--)
{
if(k==1)
{
result=data[s_row][i];
}
}
//Top to down
for (int i = s_row+1; i <=e_row && k > 0 ; ++i,k--)
{
if(k==1)
{
result=data[i][e_col];
}
}
//Bottom right to bottom-left
for (int i = e_col-1; i >=s_col && k > 0 ; --i,k--)
{
if(k==1)
{
result=data[e_row][i];
}
}
//Bottom left to top
for (int i =e_row-1 ; i > s_row && k > 0 ; --i,k--)
{
if(k==1)
{
result=data[i][s_row];
}
}
if(k==0)
{
printf("%d\n",result );
}
if(s_row+1 <= e_row-1 && k > 0)
{
//Recursive call
spiral(data,s_row+1,s_col+1,e_row-1,e_col-1,k);
}
}
void kth_element(int arr[ROW][COL],int k)
{
if(k < 0 || k > COL*(ROW))
{
//invalid input
printf("Element not exist %d\n",k);
}
else
{
printf("Spiral %d'th Element : ", k);
spiral(arr,0,0,ROW-1,COL-1,k);
}
}
int main(){
int arr[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},
};
kth_element(arr,9);
kth_element(arr,21);
kth_element(arr,42);
return 0;
}
Output
Spiral 9'th Element : 24
Spiral 21'th Element : 13
Spiral 42'th Element : 21/*
C++ Program
Print K’th element in spiral form of matrix
*/
#include<iostream>
#define ROW 7
#define COL 6
using namespace std;
class MyMatrix {
public:
void spiral(int matrix[ROW][COL],
int s_row,
int s_col,
int e_row,
int e_col,
int k)
{
int result=0;
//Left to right
for (int i = s_col; i <=e_col && k > 0 ; ++i,k--)
{
if(k==1)
{
result=matrix[s_row][i];
}
}
//Top to down
for (int i = s_row+1; i <=e_row && k > 0 ; ++i,k--)
{
if(k==1)
{
result=matrix[i][e_col];
}
}
//Bottom right to bottom-left
for (int i = e_col-1; i >=s_col && k > 0 ; --i,k--)
{
if(k==1)
{
result=matrix[e_row][i];
}
}
//Bottom left to top
for (int i =e_row-1 ; i > s_row && k > 0 ; --i,k--)
{
if(k==1)
{
result=matrix[i][s_row];
}
}
if(k==0)
{
cout<<" "<<result <<endl;
}
if(s_row+1 <= e_row-1 && k > 0)
{
//Recursive call
spiral(matrix,s_row+1,s_col+1,e_row-1,e_col-1,k);
}
}
void kth_element(int matrix[ROW][COL],int k)
{
if(k < 0 || k > COL*(ROW))
{
//invalid input
cout<<" Element "<<k<<" not exist \n";
}
else
{
cout<<" Spiral "<<k<<"'th Element : ";
spiral(matrix,0,0,ROW-1,COL-1,k);
}
}
};
int main() {
MyMatrix obj;
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},
};
obj.kth_element(matrix,9);
obj.kth_element(matrix,21);
obj.kth_element(matrix,42);
return 0;
}
Output
Spiral 9'th Element : 24
Spiral 21'th Element : 13
Spiral 42'th Element : 21/*
Java Program
Print K’th element in spiral form of matrix
*/
public class MyMatrix {
public void spiral(int [][]matrix,
int s_row,
int s_col,
int e_row,
int e_col,
int k)
{
int result=0;
//Left to right
for (int i = s_col; i <=e_col && k > 0 ; ++i,k--)
{
if(k==1)
{
result=matrix[s_row][i];
}
}
//Top to down
for (int i = s_row+1; i <=e_row && k > 0 ; ++i,k--)
{
if(k==1)
{
result=matrix[i][e_col];
}
}
//Bottom right to bottom-left
for (int i = e_col-1; i >=s_col && k > 0 ; --i,k--)
{
if(k==1)
{
result=matrix[e_row][i];
}
}
//Bottom left to top
for (int i =e_row-1 ; i > s_row && k > 0 ; --i,k--)
{
if(k==1)
{
result=matrix[i][s_row];
}
}
if(k==0)
{
System.out.print(" "+result );
}
if(s_row+1 <= e_row-1 && k > 0)
{
//Recursive call
spiral(matrix,s_row+1,s_col+1,e_row-1,e_col-1,k);
}
}
public void kth_element(int [][]matrix,int k)
{
//Find the array size
int row =matrix.length;
int col =matrix[0].length;
if(k < 0 || k > col*row)
{
//invalid input
System.out.print("\n Element "+k+" not exist ");
}
else
{
System.out.print("\n Spiral "+k+"'th Element : ");
spiral(matrix,0,0,row-1,col-1,k);
}
}
public static void main(String[] args) {
MyMatrix obj = new MyMatrix();
//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},
};
obj.kth_element(matrix,9);
obj.kth_element(matrix,21);
obj.kth_element(matrix,42);
}
}
Output
Spiral 9'th Element : 24
Spiral 21'th Element : 13
Spiral 42'th Element : 21/*
C# Program
Print K’th element in spiral form of matrix
*/
using System;
public class MyMatrix {
public void spiral(int[,] matrix, int s_row, int s_col, int e_row, int e_col, int k) {
int result = 0;
//Left to right
for (int i = s_col; i <= e_col && k > 0; ++i, k--) {
if (k == 1) {
result = matrix[s_row,i];
}
}
//Top to down
for (int i = s_row + 1; i <= e_row && k > 0; ++i, k--) {
if (k == 1) {
result = matrix[i,e_col];
}
}
//Bottom right to bottom-left
for (int i = e_col - 1; i >= s_col && k > 0; --i, k--) {
if (k == 1) {
result = matrix[e_row,i];
}
}
//Bottom left to top
for (int i = e_row - 1; i > s_row && k > 0; --i, k--) {
if (k == 1) {
result = matrix[i,s_row];
}
}
if (k == 0) {
Console.Write(" " + result);
}
if (s_row + 1 <= e_row - 1 && k > 0) {
spiral(matrix, s_row + 1, s_col + 1, e_row - 1, e_col - 1, k);
}
}
public void kth_element(int[,] matrix, int k) {
//Find the array size
int row = matrix.GetLength(0);
int col = matrix.GetLength(1);
if (k < 0 || k > col * row) {
Console.Write("\n Element " + k + " not exist ");
} else {
Console.Write("\n Spiral " + k + "'th Element : ");
spiral(matrix, 0, 0, row - 1, col - 1, k);
}
}
public static void Main(String[] args) {
MyMatrix obj = new MyMatrix();
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
}
};
obj.kth_element(matrix, 9);
obj.kth_element(matrix, 21);
obj.kth_element(matrix, 42);
}
}
Output
Spiral 9'th Element : 24
Spiral 21'th Element : 13
Spiral 42'th Element : 21<?php
/*
Php Program
Print K’th element in spiral form of matrix
*/
class MyMatrix {
public function spiral($matrix, $s_row, $s_col, $e_row, $e_col, $k) {
$result = 0;
//Left to right
for ($i = $s_col; $i <= $e_col && $k > 0; ++$i, $k--) {
if ($k == 1) {
$result = $matrix[$s_row][$i];
}
}
//Top to down
for ($i = $s_row + 1; $i <= $e_row && $k > 0; ++$i, $k--) {
if ($k == 1) {
$result = $matrix[$i][$e_col];
}
}
//Bottom right to bottom-left
for ($i = $e_col - 1; $i >= $s_col && $k > 0; --$i, $k--) {
if ($k == 1) {
$result = $matrix[$e_row][$i];
}
}
//Bottom left to top
for ($i = $e_row - 1; $i > $s_row && $k > 0; --$i, $k--) {
if ($k == 1) {
$result = $matrix[$i][$s_row];
}
}
if ($k == 0) {
echo(" ". $result);
}
if ($s_row + 1 <= $e_row - 1 && $k > 0) {
//Recursive call
$this->spiral($matrix, $s_row + 1, $s_col + 1, $e_row - 1, $e_col - 1, $k);
}
}
public function kth_element($matrix, $k) {
//Find the array size
$row = count($matrix);
$col = count($matrix[0]);
if ($k < 0 || $k > $col *$row) {
//invalid input
echo("\n Element ". $k ." not exist ");
} else {
echo("\n Spiral ". $k ."'th Element : ");
$this->spiral($matrix, 0, 0, $row - 1, $col - 1, $k);
}
}
};
function main() {
$obj = new MyMatrix();
//Define matrix
$matrix = array(
array(1, 2, 3, 4, 5, 6),
array(7, 8, 9, 10, 11, 12),
array(13, 14, 15, 16, 17, 18),
array(19, 20, 21, 22, 23, 24),
array(25, 26, 27, 28, 29, 30),
array(31, 32, 33, 34, 35, 36),
array(37, 38, 39, 40, 41, 42)
);
$obj->kth_element($matrix, 9);
$obj->kth_element($matrix, 21);
$obj->kth_element($matrix, 42);
}
main();
Output
Spiral 9'th Element : 24
Spiral 21'th Element : 13
Spiral 42'th Element : 21/*
Node Js Program
Print K’th element in spiral form of matrix
*/
class MyMatrix {
spiral(matrix, s_row, s_col, e_row, e_col, k) {
var result = 0;
//Left to right
for (var i = s_col; i <= e_col && k > 0; ++i, k--) {
if (k == 1) {
result = matrix[s_row][i];
}
}
//Top to down
for (var i = s_row + 1; i <= e_row && k > 0; ++i, k--) {
if (k == 1) {
result = matrix[i][e_col];
}
}
//Bottom right to bottom-left
for (var i = e_col - 1; i >= s_col && k > 0; --i, k--) {
if (k == 1) {
result = matrix[e_row][i];
}
}
//Bottom left to top
for (var i = e_row - 1; i > s_row && k > 0; --i, k--) {
if (k == 1) {
result = matrix[i][s_row];
}
}
if (k == 0) {
process.stdout.write(" " + result);
}
if (s_row + 1 <= e_row - 1 && k > 0) {
//Recursive call
this.spiral(matrix, s_row + 1, s_col + 1, e_row - 1, e_col - 1, k);
}
}
kth_element(matrix, k) {
//Find the array size
var row = matrix.length;
var col = matrix[0].length;
if (k < 0 || k > col *row) {
//invalid input
process.stdout.write("\n Element " + k + " not exist ");
} else {
process.stdout.write("\n Spiral " + k + "'th Element : ");
this.spiral(matrix, 0, 0, row - 1, col - 1, k);
}
}
}
function main(args) {
var obj = new MyMatrix();
//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]
];
obj.kth_element(matrix, 9);
obj.kth_element(matrix, 21);
obj.kth_element(matrix, 42);
}
main();
Output
Spiral 9'th Element : 24
Spiral 21'th Element : 13
Spiral 42'th Element : 21# Python 3 Program
# Print K’th element in spiral form of matrix
class MyMatrix :
def spiral(self, matrix, s_row, s_col, e_row, e_col, k) :
result = 0
# Left to right
i = s_col
while (i <= e_col and k > 0) :
if (k == 1) :
result = matrix[s_row][i]
i += 1
k -= 1
# Top to down
i = s_row + 1
while (i <= e_row and k > 0) :
if (k == 1) :
result = matrix[i][e_col]
i += 1
k -= 1
# Bottom right to bottom-left
i = e_col - 1
while (i >= s_col and k > 0) :
if (k == 1) :
result = matrix[e_row][i]
i -= 1
k -= 1
# Bottom left to top
i = e_row - 1
while (i > s_row and k > 0) :
if (k == 1) :
result = matrix[i][s_row]
i -= 1
k -= 1
if (k == 0) :
print(" ", result, end = "")
if (s_row + 1 <= e_row - 1 and k > 0) :
self.spiral(matrix, s_row + 1, s_col + 1, e_row - 1, e_col - 1, k)
def kth_element(self, matrix, k) :
row = len(matrix)
col = len(matrix[0])
if (k < 0 or k > col * row) :
print("\n Element ", k ," not exist ", end = "")
else :
print("\n Spiral ", k ,"'th Element : ", end = "")
self.spiral(matrix, 0, 0, row - 1, col - 1, k)
def main() :
obj = MyMatrix()
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]
]
obj.kth_element(matrix, 9)
obj.kth_element(matrix, 21)
obj.kth_element(matrix, 42)
if __name__ == "__main__":
main()
Output
Spiral 9 'th Element : 24
Spiral 21 'th Element : 13
Spiral 42 'th Element : 21# Ruby Program
# Print K’th element in spiral form of matrix
class MyMatrix
def spiral(matrix, s_row, s_col, e_row, e_col, k)
result = 0
# Left to right
i = s_col
while (i <= e_col and k > 0)
if (k == 1)
result = matrix[s_row][i]
end
i += 1
k -= 1
end
# Top to down
i = s_row + 1
while (i <= e_row and k > 0)
if (k == 1)
result = matrix[i][e_col]
end
i += 1
k -= 1
end
# Bottom right to bottom-left
i = e_col - 1
while (i >= s_col and k > 0)
if (k == 1)
result = matrix[e_row][i]
end
i -= 1
k -= 1
end
# Bottom left to top
i = e_row - 1
while (i > s_row and k > 0)
if (k == 1)
result = matrix[i][s_row]
end
i -= 1
k -= 1
end
if (k == 0)
print(" ", result)
end
if (s_row + 1 <= e_row - 1 and k > 0)
self.spiral(matrix, s_row + 1, s_col + 1, e_row - 1, e_col - 1, k)
end
end
def kth_element(matrix, k)
row = matrix.length
col = matrix[0].length
if (k < 0 or k > col * row)
print("\n Element ", k ," not exist ")
else
print("\n Spiral ", k ,"'th Element :")
self.spiral(matrix, 0, 0, row - 1, col - 1, k)
end
end
end
def main()
obj = MyMatrix.new()
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]
]
obj.kth_element(matrix, 9)
obj.kth_element(matrix, 21)
obj.kth_element(matrix, 42)
end
main()
Output
Spiral 9'th Element : 24
Spiral 21'th Element : 13
Spiral 42'th Element : 21/*
Scala Program
Print K’th element in spiral form of matrix
*/
class MyMatrix {
def spiral(matrix: Array[Array[Int]], s_row: Int, s_col: Int, e_row: Int, e_col: Int, size: Int): Unit = {
var result: Int = 0;
var k: Int = size;
//Left to right
var i: Int = s_col;
while (i <= e_col && k > 0) {
if (k == 1) {
result = matrix(s_row)(i);
}
i += 1;
k -= 1;
}
//Top to down
i = s_row + 1;
while (i <= e_row && k > 0) {
if (k == 1) {
result = matrix(i)(e_col);
}
i += 1;
k -= 1;
}
//Bottom right to bottom-left
i = e_col - 1;
while (i >= s_col && k > 0) {
if (k == 1) {
result = matrix(e_row)(i);
}
i -= 1;
k -= 1;
}
//Bottom left to top
i = e_row - 1;
while (i > s_row && k > 0) {
if (k == 1) {
result = matrix(i)(s_row);
}
i -= 1;
k -= 1;
}
if (k == 0) {
print(" " + result);
}
if (s_row + 1 <= e_row - 1 && k > 0) {
this.spiral(matrix, s_row + 1, s_col + 1, e_row - 1, e_col - 1, k);
}
}
def kth_element(matrix: Array[Array[Int]], k: Int): Unit = {
val row: Int = matrix.length;
val col: Int = matrix(0).length;
if (k < 0 || k > col * row) {
print("\n Element " + k + " not exist ");
} else {
print("\n Spiral " + k + "'th Element : ");
this.spiral(matrix, 0, 0, row - 1, col - 1, k);
}
}
}
object Main {
def main(args: Array[String]): Unit = {
val obj: MyMatrix = new MyMatrix();
val matrix: Array[Array[Int]] = Array(
Array(1, 2, 3, 4, 5, 6),
Array(7, 8, 9, 10, 11, 12),
Array(13, 14, 15, 16, 17, 18),
Array(19, 20, 21, 22, 23, 24),
Array(25, 26, 27, 28, 29, 30),
Array(31, 32, 33, 34, 35, 36),
Array(37, 38, 39, 40, 41, 42));
obj.kth_element(matrix, 9);
obj.kth_element(matrix, 21);
obj.kth_element(matrix, 42);
}
}
Output
Spiral 9'th Element : 24
Spiral 21'th Element : 13
Spiral 42'th Element : 21/*
Swift 4 Program
Print K’th element in spiral form of matrix
*/
class MyMatrix {
func spiral(_ matrix: [
[Int]
], _ s_row: Int, _ s_col: Int, _ e_row: Int, _ e_col: Int, _ size: Int) {
var result: Int = 0;
var k: Int = size;
//Left to right
var i: Int = s_col;
while (i <= e_col && k > 0) {
if (k == 1) {
result = matrix[s_row][i];
}
i += 1;
k -= 1;
}
//Top to down
i = s_row + 1;
while (i <= e_row && k > 0) {
if (k == 1) {
result = matrix[i][e_col];
}
i += 1;
k -= 1;
}
//Bottom right to bottom-left
i = e_col - 1;
while (i >= s_col && k > 0) {
if (k == 1) {
result = matrix[e_row][i];
}
i -= 1;
k -= 1;
}
//Bottom left to top
i = e_row - 1;
while (i > s_row && k > 0) {
if (k == 1) {
result = matrix[i][s_row];
}
i -= 1;
k -= 1;
}
if (k == 0) {
print(" ", result, terminator: "");
}
if (s_row + 1 <= e_row - 1 && k > 0) {
self.spiral(matrix, s_row + 1, s_col + 1, e_row - 1, e_col - 1, k);
}
}
func kth_element(_ matrix: [
[Int]
], _ k: Int) {
let row: Int = matrix.count;
let col: Int = matrix[0].count;
if (k < 0 || k > col * row) {
print("\n Element ", k ," not exist ", terminator: "");
} else {
print("\n Spiral ", k ,"'th Element : ", terminator: "");
self.spiral(matrix, 0, 0, row - 1, col - 1, k);
}
}
}
func main() {
let obj: MyMatrix = MyMatrix();
let 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]
];
obj.kth_element(matrix, 9);
obj.kth_element(matrix, 21);
obj.kth_element(matrix, 42);
}
main();
Output
Spiral 9 'th Element : 24
Spiral 21 'th Element : 13
Spiral 42 'th Element : 21
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