Surrounded Regions
Here given code implementation process.
/*
C Program for
Surrounded Regions
*/
#include <stdio.h>
#define R 8
#define C 7
// Print record elements
void printResult(char record[R][C])
{
for (int i = 0; i < R; ++i)
{
for (int j = 0; j < C; ++j)
{
printf(" %c",record[i][j]);
}
printf("\n");
}
}
// Fill corner elements with a "O" value
void fill(char record[R][C],int i, int j)
{
if(i < 0 || i >= R || j < 0 || j >= C)
{
return;
}
if(record[i][j] == '+')
{
// Update element
record[i][j] = 'O';
// visit to down element
fill(record,i+1,j);
// visit to up element
fill(record,i-1,j);
// visit to right element
fill(record,i,j+1);
// visit to left element
fill(record,i,j-1);
}
}
// Fill surrounded regions
void solve(char record[R][C])
{
// loop controlling variables
int i = 0;
int j = 0;
printf("\n Before Surrounded \n");
printResult(record);
// First change the all zero with other symbol "+"
for ( i = 0; i < R; ++i)
{
for ( j = 0; j < C; ++j)
{
if(record[i][j]=='O')
{
record[i][j] = '+';
}
}
}
// Change boundary
// Check first and last column
for ( i = 0; i < R; ++i)
{
if(record[i][0] == '+')
{
fill(record,i,0);
}
if(record[i][C-1]=='+')
{
fill(record,i,C-1);
}
}
// Check first and last row
for ( i = 0; i < C; ++i)
{
if(record[0][i] == '+')
{
fill(record,0,i);
}
if(record[R-1][i]=='+')
{
fill(record,R-1,i);
}
}
for ( i = 0; i < R; ++i)
{
for ( j = 0; j < C; ++j)
{
if(record[i][j]=='+')
{
record[i][j] = 'X';
}
}
}
printf("\n After Surrounded \n");
printResult(record);
}
int main()
{
char record[R][C] =
{
{'O', 'X', 'X', 'X', 'X', 'O', 'X'},
{'X', 'X', 'X', 'X', 'O', 'X', 'O'},
{'O', 'O', 'O', 'X', 'X', 'O', 'O'},
{'X', 'O', 'X', 'X', 'X', 'X', 'X'},
{'X', 'X', 'O', 'X', 'X', 'X', 'X'},
{'X', 'O', 'X', 'X', 'X', 'X', 'X'},
{'X', 'X', 'O', 'O', 'X', 'O', 'O'},
{'X', 'X', 'O', 'X', 'O', 'X', 'O'},
};
/*
Change all O with X when O is Surrounded by X
Example
========
// Left,Right, Bottom and Top are have X
X X
X O O X
X X
Then change center O with X
X X
X X X X
X X
-----------------------------
or
X
X O X
X
Then change center O with X
X
X O X
X
*/
solve(record);
return 0;
}Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O/*
Java Program for
surrounded regions
*/
public class Regions
{
// Print record elements
public void printresult(char[][] record, int r, int c)
{
for (int i = 0; i < r; ++i)
{
for (int j = 0; j < c; ++j)
{
System.out.print(" " + record[i][j]);
}
System.out.print("\n");
}
}
// Fill corner elements with a "O" value
public void fill(char[][] record, int i, int j, int r, int c)
{
if (i < 0 || i >= r || j < 0 || j >= c)
{
return;
}
if (record[i][j] == '+')
{
// Update element
record[i][j] = 'O';
// visit to down element
fill(record, i + 1, j, r, c);
// visit to up element
fill(record, i - 1, j, r, c);
// visit to right element
fill(record, i, j + 1, r, c);
// visit to left element
fill(record, i, j - 1, r, c);
}
}
// Fill surrounded regions
public void solve(char[][] record)
{
// loop controlling variables
int i = 0;
int j = 0;
int r = record.length;
int c = record[0].length;
System.out.print("\n Before Surrounded \n");
printresult(record, r, c);
// First change the all zero with other symbol "+"
for (i = 0; i < r; ++i)
{
for (j = 0; j < c; ++j)
{
if (record[i][j] == 'O')
{
record[i][j] = '+';
}
}
}
// change boundary
// check first and last column
for (i = 0; i < r; ++i)
{
if (record[i][0] == '+')
{
fill(record, i, 0, r, c);
}
if (record[i][c - 1] == '+')
{
fill(record, i, c - 1, r, c);
}
}
// check first and last row
for (i = 0; i < c; ++i)
{
if (record[0][i] == '+')
{
fill(record, 0, i, r, c);
}
if (record[r - 1][i] == '+')
{
fill(record, r - 1, i, r, c);
}
}
for (i = 0; i < r; ++i)
{
for (j = 0; j < c; ++j)
{
if (record[i][j] == '+')
{
record[i][j] = 'X';
}
}
}
System.out.print("\n After Surrounded \n");
printresult(record, r, c);
}
public static void main(String[] args)
{
Regions task = new Regions();
char [][]record =
{
{'O', 'X', 'X', 'X', 'X', 'O', 'X'},
{'X', 'X', 'X', 'X', 'O', 'X', 'O'},
{'O', 'O', 'O', 'X', 'X', 'O', 'O'},
{'X', 'O', 'X', 'X', 'X', 'X', 'X'},
{'X', 'X', 'O', 'X', 'X', 'X', 'X'},
{'X', 'O', 'X', 'X', 'X', 'X', 'X'},
{'X', 'X', 'O', 'O', 'X', 'O', 'O'},
{'X', 'X', 'O', 'X', 'O', 'X', 'O'},
};
/*
Change all O with X when O is Surrounded by X
Example
========
// Left,right, Bottom and Top are have X
X X
X O O X
X X
Then change center O with X
X X
X X X X
X X
-----------------------------
or
X
X O X
X
Then change center O with X
X
X O X
X
*/
task.solve(record);
}
}Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O// Include header file
#include <iostream>
#define R 8
#define C 7
using namespace std;
/*
C++ Program for
surrounded regions
*/
class Regions
{
public:
// Print record elements
void printresult(char record[R][C])
{
for (int i = 0; i < R; ++i)
{
for (int j = 0; j < C; ++j)
{
cout << " " << record[i][j];
}
cout << "\n";
}
}
// Fill corner elements with a "O" value
void fill(char record[R][C], int i, int j)
{
if (i < 0 || i >= R || j < 0 || j >= C)
{
return;
}
if (record[i][j] == '+')
{
// Update element
record[i][j] = 'O';
// visit to down element
this->fill(record, i + 1, j);
// visit to up element
this->fill(record, i - 1, j);
// visit to right element
this->fill(record, i, j + 1);
// visit to left element
this->fill(record, i, j - 1);
}
}
// Fill surrounded regions
void solve(char record[R][C])
{
// loop controlling variables
int i = 0;
int j = 0;
cout << "\n Before Surrounded \n";
this->printresult(record);
// First change the all zero with other symbol "+"
for (i = 0; i < R; ++i)
{
for (j = 0; j < C; ++j)
{
if (record[i][j] == 'O')
{
record[i][j] = '+';
}
}
}
// change boundary
// check first and last column
for (i = 0; i < R; ++i)
{
if (record[i][0] == '+')
{
this->fill(record, i, 0);
}
if (record[i][C - 1] == '+')
{
this->fill(record, i, C - 1);
}
}
// check first and last row
for (i = 0; i < C; ++i)
{
if (record[0][i] == '+')
{
this->fill(record, 0, i);
}
if (record[R - 1][i] == '+')
{
this->fill(record, R - 1, i);
}
}
for (i = 0; i < R; ++i)
{
for (j = 0; j < C; ++j)
{
if (record[i][j] == '+')
{
record[i][j] = 'X';
}
}
}
cout << "\n After Surrounded \n";
this->printresult(record);
}
};
int main()
{
Regions task = Regions();
char record[R][C] =
{
{'O', 'X', 'X', 'X', 'X', 'O', 'X'},
{'X', 'X', 'X', 'X', 'O', 'X', 'O'},
{'O', 'O', 'O', 'X', 'X', 'O', 'O'},
{'X', 'O', 'X', 'X', 'X', 'X', 'X'},
{'X', 'X', 'O', 'X', 'X', 'X', 'X'},
{'X', 'O', 'X', 'X', 'X', 'X', 'X'},
{'X', 'X', 'O', 'O', 'X', 'O', 'O'},
{'X', 'X', 'O', 'X', 'O', 'X', 'O'},
};
/*
Change all O with X when O is Surrounded by X
Example
========
// Left,right, Bottom and Top are have X
X X
X O O X
X X
Then change center O with X
X X
X X X X
X X
-----------------------------
or
X
X O X
X
Then change center O with X
X
X O X
X
*/
task.solve(record);
return 0;
}Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O// Include namespace system
using System;
/*
C# Program for
surrounded regions
*/
public class Regions
{
// Print record elements
public void printresult(char[,] record, int r, int c)
{
for (int i = 0; i < r; ++i)
{
for (int j = 0; j < c; ++j)
{
Console.Write(" " + record[i,j]);
}
Console.Write("\n");
}
}
// Fill corner elements with a "O" value
public void fill(char[,] record, int i, int j, int r, int c)
{
if (i < 0 || i >= r || j < 0 || j >= c)
{
return;
}
if (record[i,j] == '+')
{
// Update element
record[i,j] = 'O';
// visit to down element
fill(record, i + 1, j, r, c);
// visit to up element
fill(record, i - 1, j, r, c);
// visit to right element
fill(record, i, j + 1, r, c);
// visit to left element
fill(record, i, j - 1, r, c);
}
}
// Fill surrounded regions
public void solve(char[,] record)
{
// loop controlling variables
int i = 0;
int j = 0;
int r = record.GetLength(0);
int c = record.GetLength(1);
Console.Write("\n Before Surrounded \n");
printresult(record, r, c);
// First change the all zero with other symbol "+"
for (i = 0; i < r; ++i)
{
for (j = 0; j < c; ++j)
{
if (record[i,j] == 'O')
{
record[i,j] = '+';
}
}
}
// change boundary
// check first and last column
for (i = 0; i < r; ++i)
{
if (record[i,0] == '+')
{
fill(record, i, 0, r, c);
}
if (record[i,c - 1] == '+')
{
fill(record, i, c - 1, r, c);
}
}
// check first and last row
for (i = 0; i < c; ++i)
{
if (record[0,i] == '+')
{
fill(record, 0, i, r, c);
}
if (record[r - 1,i] == '+')
{
fill(record, r - 1, i, r, c);
}
}
for (i = 0; i < r; ++i)
{
for (j = 0; j < c; ++j)
{
if (record[i,j] == '+')
{
record[i,j] = 'X';
}
}
}
Console.Write("\n After Surrounded \n");
printresult(record, r, c);
}
public static void Main(String[] args)
{
Regions task = new Regions();
char[,] record =
{
{'O', 'X', 'X', 'X', 'X', 'O', 'X'},
{'X', 'X', 'X', 'X', 'O', 'X', 'O'},
{'O', 'O', 'O', 'X', 'X', 'O', 'O'},
{'X', 'O', 'X', 'X', 'X', 'X', 'X'},
{'X', 'X', 'O', 'X', 'X', 'X', 'X'},
{'X', 'O', 'X', 'X', 'X', 'X', 'X'},
{'X', 'X', 'O', 'O', 'X', 'O', 'O'},
{'X', 'X', 'O', 'X', 'O', 'X', 'O'}
};
/*
Change all O with X when O is Surrounded by X
Example
========
// Left,right, Bottom and Top are have X
X X
X O O X
X X
Then change center O with X
X X
X X X X
X X
-----------------------------
or
X
X O X
X
Then change center O with X
X
X O X
X
*/
task.solve(record);
}
}Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O<?php
/*
Php Program for
surrounded regions
*/
class Regions
{
// Print record elements
public function printresult( & $record, $r, $c)
{
for ($i = 0; $i < $r; ++$i)
{
for ($j = 0; $j < $c; ++$j)
{
echo " ". $record[$i][$j];
}
echo "\n";
}
}
// Fill corner elements with a "O" value
public function fill( & $record, $i, $j, $r, $c)
{
if ($i < 0 || $i >= $r || $j < 0 || $j >= $c)
{
return;
}
if ($record[$i][$j] == '+')
{
// Update element
$record[$i][$j] = 'O';
// visit to down element
$this->fill($record, $i + 1, $j, $r, $c);
// visit to up element
$this->fill($record, $i - 1, $j, $r, $c);
// visit to right element
$this->fill($record, $i, $j + 1, $r, $c);
// visit to left element
$this->fill($record, $i, $j - 1, $r, $c);
}
}
// Fill surrounded regions
public function solve( & $record)
{
// loop controlling variables
$i = 0;
$j = 0;
$r = count($record);
$c = count($record[0]);
echo "\n Before Surrounded \n";
$this->printresult($record, $r, $c);
// First change the all zero with other symbol "+"
for ($i = 0; $i < $r; ++$i)
{
for ($j = 0; $j < $c; ++$j)
{
if ($record[$i][$j] == 'O')
{
$record[$i][$j] = '+';
}
}
}
// change boundary
// check first and last column
for ($i = 0; $i < $r; ++$i)
{
if ($record[$i][0] == '+')
{
$this->fill($record, $i, 0, $r, $c);
}
if ($record[$i][$c - 1] == '+')
{
$this->fill($record, $i, $c - 1, $r, $c);
}
}
// check first and last row
for ($i = 0; $i < $c; ++$i)
{
if ($record[0][$i] == '+')
{
$this->fill($record, 0, $i, $r, $c);
}
if ($record[$r - 1][$i] == '+')
{
$this->fill($record, $r - 1, $i, $r, $c);
}
}
for ($i = 0; $i < $r; ++$i)
{
for ($j = 0; $j < $c; ++$j)
{
if ($record[$i][$j] == '+')
{
$record[$i][$j] = 'X';
}
}
}
echo "\n After Surrounded \n";
$this->printresult($record, $r, $c);
}
}
function main()
{
$task = new Regions();
$record = array(
array('O', 'X', 'X', 'X', 'X', 'O', 'X'),
array('X', 'X', 'X', 'X', 'O', 'X', 'O'),
array('O', 'O', 'O', 'X', 'X', 'O', 'O'),
array('X', 'O', 'X', 'X', 'X', 'X', 'X'),
array('X', 'X', 'O', 'X', 'X', 'X', 'X'),
array('X', 'O', 'X', 'X', 'X', 'X', 'X'),
array('X', 'X', 'O', 'O', 'X', 'O', 'O'),
array('X', 'X', 'O', 'X', 'O', 'X', 'O')
);
/*
Change all O with X when O is Surrounded by X
Example
========
// Left,right, Bottom and Top are have X
X X
X O O X
X X
Then change center O with X
X X
X X X X
X X
-----------------------------
or
X
X O X
X
Then change center O with X
X
X O X
X
*/
$task->solve($record);
}
main();Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O/*
Node Js Program for
surrounded regions
*/
class Regions
{
// Print record elements
printresult(record, r, c)
{
for (var i = 0; i < r; ++i)
{
for (var j = 0; j < c; ++j)
{
process.stdout.write(" " + record[i][j]);
}
process.stdout.write("\n");
}
}
// Fill corner elements with a "O" value
fill(record, i, j, r, c)
{
if (i < 0 || i >= r || j < 0 || j >= c)
{
return;
}
if (record[i][j] == '+')
{
// Update element
record[i][j] = 'O';
// visit to down element
this.fill(record, i + 1, j, r, c);
// visit to up element
this.fill(record, i - 1, j, r, c);
// visit to right element
this.fill(record, i, j + 1, r, c);
// visit to left element
this.fill(record, i, j - 1, r, c);
}
}
// Fill surrounded regions
solve(record)
{
// loop controlling variables
var i = 0;
var j = 0;
var r = record.length;
var c = record[0].length;
process.stdout.write("\n Before Surrounded \n");
this.printresult(record, r, c);
// First change the all zero with other symbol "+"
for (i = 0; i < r; ++i)
{
for (j = 0; j < c; ++j)
{
if (record[i][j] == 'O')
{
record[i][j] = '+';
}
}
}
// change boundary
// check first and last column
for (i = 0; i < r; ++i)
{
if (record[i][0] == '+')
{
this.fill(record, i, 0, r, c);
}
if (record[i][c - 1] == '+')
{
this.fill(record, i, c - 1, r, c);
}
}
// check first and last row
for (i = 0; i < c; ++i)
{
if (record[0][i] == '+')
{
this.fill(record, 0, i, r, c);
}
if (record[r - 1][i] == '+')
{
this.fill(record, r - 1, i, r, c);
}
}
for (i = 0; i < r; ++i)
{
for (j = 0; j < c; ++j)
{
if (record[i][j] == '+')
{
record[i][j] = 'X';
}
}
}
process.stdout.write("\n After Surrounded \n");
this.printresult(record, r, c);
}
}
function main()
{
var task = new Regions();
var record = [
['O', 'X', 'X', 'X', 'X', 'O', 'X'] ,
['X', 'X', 'X', 'X', 'O', 'X', 'O'] ,
['O', 'O', 'O', 'X', 'X', 'O', 'O'] ,
['X', 'O', 'X', 'X', 'X', 'X', 'X'] ,
['X', 'X', 'O', 'X', 'X', 'X', 'X'] ,
['X', 'O', 'X', 'X', 'X', 'X', 'X'] ,
['X', 'X', 'O', 'O', 'X', 'O', 'O'] ,
['X', 'X', 'O', 'X', 'O', 'X', 'O']
];
/*
Change all O with X when O is Surrounded by X
Example
========
// Left,right, Bottom and Top are have X
X X
X O O X
X X
Then change center O with X
X X
X X X X
X X
-----------------------------
or
X
X O X
X
Then change center O with X
X
X O X
X
*/
task.solve(record);
}
main();Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O# Python 3 Program for
# surrounded regions
class Regions :
# Print record elements
def printresult(self, record, r, c) :
i = 0
j = 0
while (i < r) :
while (j < c) :
print(" ", record[i][j], end = "")
j += 1
print(end = "\n")
i += 1
j = 0
# Fill corner elements with a "O" value
def fill(self, record, i, j, r, c) :
if (i < 0 or i >= r or j < 0 or j >= c) :
return
if (record[i][j] == '+') :
# Update element
record[i][j] = 'O'
# visit to down element
self.fill(record, i + 1, j, r, c)
# visit to up element
self.fill(record, i - 1, j, r, c)
# visit to right element
self.fill(record, i, j + 1, r, c)
# visit to left element
self.fill(record, i, j - 1, r, c)
# Fill surrounded regions
def solve(self, record) :
# loop controlling variables
i = 0
j = 0
r = len(record)
c = len(record[0])
print("\n Before Surrounded ")
self.printresult(record, r, c)
# First change the all zero with other symbol "+"
while (i < r) :
while (j < c) :
if (record[i][j] == 'O') :
record[i][j] = '+'
j += 1
i += 1
j = 0
# change boundary
# check first and last column
i = 0
while (i < r) :
if (record[i][0] == '+') :
self.fill(record, i, 0, r, c)
if (record[i][c - 1] == '+') :
self.fill(record, i, c - 1, r, c)
i += 1
# check first and last row
i = 0
while (i < c) :
if (record[0][i] == '+') :
self.fill(record, 0, i, r, c)
if (record[r - 1][i] == '+') :
self.fill(record, r - 1, i, r, c)
i += 1
i = 0
while (i < r) :
j = 0
while (j < c) :
if (record[i][j] == '+') :
record[i][j] = 'X'
j += 1
i += 1
print("\n After Surrounded ")
self.printresult(record, r, c)
def main() :
task = Regions()
record = [
['O', 'X', 'X', 'X', 'X', 'O', 'X'] ,
['X', 'X', 'X', 'X', 'O', 'X', 'O'] ,
['O', 'O', 'O', 'X', 'X', 'O', 'O'] ,
['X', 'O', 'X', 'X', 'X', 'X', 'X'] ,
['X', 'X', 'O', 'X', 'X', 'X', 'X'] ,
['X', 'O', 'X', 'X', 'X', 'X', 'X'] ,
['X', 'X', 'O', 'O', 'X', 'O', 'O'] ,
['X', 'X', 'O', 'X', 'O', 'X', 'O']
]
#
# Change all O with X when O is Surrounded by X
# Example
# ========
# // Left,right, Bottom and Top are have X
# X X
# X O O X
# X X
#
# Then change center O with X
# X X
# X X X X
# X X
# -----------------------------
# or
# X
# X O X
# X
# Then change center O with X
# X
# X O X
# X
task.solve(record)
if __name__ == "__main__": main()Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O# Ruby Program for
# surrounded regions
class Regions
# Print record elements
def printresult(record, r, c)
i = 0
j = 0
while (i < r)
while (j < c)
print(" ", record[i][j])
j += 1
end
print("\n")
i += 1
j = 0
end
end
# Fill corner elements with a "O" value
def fill(record, i, j, r, c)
if (i < 0 || i >= r || j < 0 || j >= c)
return
end
if (record[i][j] == '+')
# Update element
record[i][j] = 'O'
# visit to down element
self.fill(record, i + 1, j, r, c)
# visit to up element
self.fill(record, i - 1, j, r, c)
# visit to right element
self.fill(record, i, j + 1, r, c)
# visit to left element
self.fill(record, i, j - 1, r, c)
end
end
# Fill surrounded regions
def solve(record)
# loop controlling variables
i = 0
j = 0
r = record.length
c = record[0].length
print("\n Before Surrounded \n")
self.printresult(record, r, c)
# First change the all zero with other symbol "+"
while (i < r)
while (j < c)
if (record[i][j] == 'O')
record[i][j] = '+'
end
j += 1
end
i += 1
j = 0
end
# change boundary
# check first and last column
i = 0
while (i < r)
if (record[i][0] == '+')
self.fill(record, i, 0, r, c)
end
if (record[i][c - 1] == '+')
self.fill(record, i, c - 1, r, c)
end
i += 1
end
# check first and last row
i = 0
while (i < c)
if (record[0][i] == '+')
self.fill(record, 0, i, r, c)
end
if (record[r - 1][i] == '+')
self.fill(record, r - 1, i, r, c)
end
i += 1
end
i = 0
while (i < r)
j = 0
while (j < c)
if (record[i][j] == '+')
record[i][j] = 'X'
end
j += 1
end
i += 1
end
print("\n After Surrounded \n")
self.printresult(record, r, c)
end
end
def main()
task = Regions.new()
record = [
['O', 'X', 'X', 'X', 'X', 'O', 'X'] ,
['X', 'X', 'X', 'X', 'O', 'X', 'O'] ,
['O', 'O', 'O', 'X', 'X', 'O', 'O'] ,
['X', 'O', 'X', 'X', 'X', 'X', 'X'] ,
['X', 'X', 'O', 'X', 'X', 'X', 'X'] ,
['X', 'O', 'X', 'X', 'X', 'X', 'X'] ,
['X', 'X', 'O', 'O', 'X', 'O', 'O'] ,
['X', 'X', 'O', 'X', 'O', 'X', 'O']
]
#
# Change all O with X when O is Surrounded by X
# Example
# ========
# // Left,right, Bottom and Top are have X
# X X
# X O O X
# X X
#
# Then change center O with X
# X X
# X X X X
# X X
# -----------------------------
# or
# X
# X O X
# X
# Then change center O with X
# X
# X O X
# X
task.solve(record)
end
main()Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O
/*
Scala Program for
surrounded regions
*/
class Regions
{
// Print record elements
def printresult(record: Array[Array[Character]], r: Int, c: Int): Unit = {
var i: Int = 0;
var j: Int = 0;
while (i < r)
{
while (j < c)
{
print(" " + record(i)(j));
j += 1;
}
print("\n");
i += 1;
j = 0;
}
}
// Fill corner elements with a "O" value
def fill(record: Array[Array[Character]], i: Int, j: Int, r: Int, c: Int): Unit = {
if (i < 0 || i >= r || j < 0 || j >= c)
{
return;
}
if (record(i)(j) == '+')
{
// Update element
record(i)(j) = 'O';
// visit to down element
this.fill(record, i + 1, j, r, c);
// visit to up element
this.fill(record, i - 1, j, r, c);
// visit to right element
this.fill(record, i, j + 1, r, c);
// visit to left element
this.fill(record, i, j - 1, r, c);
}
}
// Fill surrounded regions
def solve(record: Array[Array[Character]]): Unit = {
// loop controlling variables
var i: Int = 0;
var j: Int = 0;
var r: Int = record.length;
var c: Int = record(0).length;
print("\n Before Surrounded \n");
this.printresult(record, r, c);
// First change the all zero with other symbol "+"
while (i < r)
{
while (j < c)
{
if (record(i)(j) == 'O')
{
record(i)(j) = '+';
}
j += 1;
}
i += 1;
j = 0;
}
// change boundary
// check first and last column
i = 0;
while (i < r)
{
if (record(i)(0) == '+')
{
this.fill(record, i, 0, r, c);
}
if (record(i)(c - 1) == '+')
{
this.fill(record, i, c - 1, r, c);
}
i += 1;
}
// check first and last row
i = 0;
while (i < c)
{
if (record(0)(i) == '+')
{
this.fill(record, 0, i, r, c);
}
if (record(r - 1)(i) == '+')
{
this.fill(record, r - 1, i, r, c);
}
i += 1;
}
i = 0;
while (i < r)
{
j = 0;
while (j < c)
{
if (record(i)(j) == '+')
{
record(i)(j) = 'X';
}
j += 1;
}
i += 1;
}
print("\n After Surrounded \n");
this.printresult(record, r, c);
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: Regions = new Regions();
var record: Array[Array[Character]] = Array(
Array('O', 'X', 'X', 'X', 'X', 'O', 'X'),
Array('X', 'X', 'X', 'X', 'O', 'X', 'O'),
Array('O', 'O', 'O', 'X', 'X', 'O', 'O'),
Array('X', 'O', 'X', 'X', 'X', 'X', 'X'),
Array('X', 'X', 'O', 'X', 'X', 'X', 'X'),
Array('X', 'O', 'X', 'x', 'X', 'X', 'X'),
Array('X', 'X', 'O', 'O', 'X', 'O', 'O'),
Array('X', 'X', 'O', 'X', 'O', 'X', 'O')
);
/*
Change all O with X when O is Surrounded by X
Example
========
// Left,right, Bottom and Top are have X
X X
X O O X
X X
Then change center O with X
X X
X X X X
X X
-----------------------------
or
X
X O X
X
Then change center O with X
X
X O X
X
*/
task.solve(record);
}
}Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O/*
Swift 4 Program for
surrounded regions
*/
class Regions
{
// Print record elements
func printresult(_ record: [
[Character]
], _ r: Int, _ c: Int)
{
var i: Int = 0;
var j: Int = 0;
while (i < r)
{
while (j < c)
{
print(" ", record[i][j], terminator: "");
j += 1;
}
print(terminator: "\n");
i += 1;
j = 0;
}
}
// Fill corner elements with a "O" value
func fill(_ record: inout[[Character]], _ i: Int, _ j: Int, _ r: Int, _ c: Int)
{
if (i < 0 || i >= r || j < 0 || j >= c)
{
return;
}
if (record[i][j] == "+")
{
// Update element
record[i][j] = "O";
// visit to down element
self.fill(&record, i + 1, j, r, c);
// visit to up element
self.fill(&record, i - 1, j, r, c);
// visit to right element
self.fill(&record, i, j + 1, r, c);
// visit to left element
self.fill(&record, i, j - 1, r, c);
}
}
// Fill surrounded regions
func solve(_ record: inout[[Character]])
{
// loop controlling variables
var i: Int = 0;
var j: Int = 0;
let r: Int = record.count;
let c: Int = record[0].count;
print("\n Before Surrounded ");
self.printresult(record, r, c);
// First change the all zero with other symbol "+"
while (i < r)
{
while (j < c)
{
if (record[i][j] == "O")
{
record[i][j] = "+";
}
j += 1;
}
i += 1;
j = 0;
}
// change boundary
// check first and last column
i = 0;
while (i < r)
{
if (record[i][0] == "+")
{
self.fill(&record, i, 0, r, c);
}
if (record[i][c - 1] == "+")
{
self.fill(&record, i, c - 1, r, c);
}
i += 1;
}
// check first and last row
i = 0;
while (i < c)
{
if (record[0][i] == "+")
{
self.fill(&record, 0, i, r, c);
}
if (record[r - 1][i] == "+")
{
self.fill(&record, r - 1, i, r, c);
}
i += 1;
}
i = 0;
while (i < r)
{
j = 0;
while (j < c)
{
if (record[i][j] == "+")
{
record[i][j] = "X";
}
j += 1;
}
i += 1;
}
print("\n After Surrounded ");
self.printresult(record, r, c);
}
}
func main()
{
let task: Regions = Regions();
var record: [[Character]] = [
["O", "X", "X", "X", "X", "O", "X"] ,
["X", "X", "X", "X", "O", "X", "O"] ,
["O", "O", "O", "X", "X", "O", "O"] ,
["X", "O", "X", "X", "X", "X", "X"] ,
["X", "X", "O", "X", "X", "X", "X"] ,
["X", "O", "X", "X", "X", "X", "X"] ,
["X", "X", "O", "O", "X", "O", "O"] ,
["X", "X", "O", "X", "O", "X", "O"]
];
/*
Change all O with X when O is Surrounded by X
Example
========
// Left,right, Bottom and Top are have X
X X
X O O X
X X
Then change center O with X
X X
X X X X
X X
-----------------------------
or
X
X O X
X
Then change center O with X
X
X O X
X
*/
task.solve(&record);
}
main();Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O/*
Kotlin Program for
surrounded regions
*/
class Regions
{
// Print record elements
fun printresult(record: Array <Array<Char>> , r: Int, c: Int): Unit
{
var i: Int = 0;
var j: Int = 0;
while (i < r)
{
while (j < c)
{
print(" " + record[i][j]);
j += 1;
}
print("\n");
i += 1;
j = 0;
}
}
// Fill corner elements with a "O" value
fun fill(record: Array <Array<Char>> , i: Int, j: Int, r: Int, c: Int): Unit
{
if (i < 0 || i >= r || j < 0 || j >= c)
{
return;
}
if (record[i][j] == '+')
{
// Update element
record[i][j] = 'O';
// visit to down element
this.fill(record, i + 1, j, r, c);
// visit to up element
this.fill(record, i - 1, j, r, c);
// visit to right element
this.fill(record, i, j + 1, r, c);
// visit to left element
this.fill(record, i, j - 1, r, c);
}
}
// Fill surrounded regions
fun solve(record: Array < Array < Char >> ): Unit
{
// loop controlling variables
var i: Int = 0;
var j: Int = 0;
var r: Int = record.count();
var c: Int = record[0].count();
print("\n Before Surrounded \n");
this.printresult(record, r, c);
// First change the all zero with other symbol "+"
while (i < r)
{
while (j < c)
{
if (record[i][j] == 'O')
{
record[i][j] = '+';
}
j += 1;
}
i += 1;
j = 0;
}
// change boundary
// check first and last column
i = 0;
while (i < r)
{
if (record[i][0] == '+')
{
this.fill(record, i, 0, r, c);
}
if (record[i][c - 1] == '+')
{
this.fill(record, i, c - 1, r, c);
}
i += 1;
}
// check first and last row
i = 0;
while (i < c)
{
if (record[0][i] == '+')
{
this.fill(record, 0, i, r, c);
}
if (record[r - 1][i] == '+')
{
this.fill(record, r - 1, i, r, c);
}
i += 1;
}
i = 0;
while (i < r)
{
j = 0;
while (j < c)
{
if (record[i][j] == '+')
{
record[i][j] = 'X';
}
j += 1;
}
i += 1;
}
print("\n After Surrounded \n");
this.printresult(record, r, c);
}
}
fun main(args: Array <String> ): Unit
{
var task: Regions = Regions();
var record: Array<Array<Char>> = arrayOf(
arrayOf('O', 'X', 'X', 'X', 'X', 'O', 'X'),
arrayOf('X', 'X', 'X', 'X', 'O', 'X', 'O'),
arrayOf('O', 'O', 'O', 'X', 'X', 'O', 'O'),
arrayOf('X', 'O', 'X', 'X', 'X', 'X', 'X'),
arrayOf('X', 'X', 'O', 'X', 'X', 'X', 'X'),
arrayOf('X', 'O', 'X', 'X', 'X', 'X', 'X'),
arrayOf('X', 'X', 'O', 'O', 'X', 'O', 'O'),
arrayOf('X', 'X', 'O', 'X', 'O', 'X', 'O')
);
/*
Change all O with X when O is Surrounded by X
Example
========
// Left,right, Bottom and Top are have X
X X
X O O X
X X
Then change center O with X
X X
X X X X
X X
-----------------------------
or
X
X O X
X
Then change center O with X
X
X O X
X
*/
task.solve(record);
}Output
Before Surrounded
O X X X X O X
X X X X O X O
O O O X X O O
X O X X X X X
X X O X X X X
X O X X X X X
X X O O X O O
X X O X O X O
After Surrounded
O X X X X O X
X X X X X X O
O O O X X O O
X O X X X X X
X X X X X X X
X X X X X X X
X X O O X O O
X X O X O X O
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