Check pair with given product in an array

Here given code implementation process.

/*
    Java Program
    Check pair with given product in an array
*/
import java.util.HashSet;
public class Product
{
	//Function which is display array elements
	public void display(int[] arr, int n)
	{
		for (int i = 0; i < n; ++i)
		{
			System.out.print("  " + arr[i]);
		}
		System.out.print("\n");
	}
	// Find pair of given product in an array 
	public void pairProduct(int[] arr, int n, int k)
	{
		// Result indicator
		boolean result = false;
		// Display given array
		System.out.print(" Given Array  : ");
		display(arr, n);
		// Display given product
		System.out.print(" Given Product : " + k);
		// Provides pair info when product exist
		int a = 0;
		int b = 0;
		if (n > 1)
		{
			//  Collection of all unique elements
			HashSet < Integer > pairs = new HashSet < Integer > ();
			// Get the distinct pair combination
			for (int i = 0; i < n && result == false; ++i)
			{
				if (arr[i] == 0)
				{
					if (k == 0)
					{
						result = true;
						a = 0;
						if (i == 0)
						{
							b = arr[i + 1];
						}
						else
						{
							b = arr[i - 1];
						}
					}
				}
				else if ((k % arr[i] == 0) && pairs.contains(k / arr[i]))
				{
					// When given product is generated by pair of two elements
					a = arr[i];
					b = (k / arr[i]);
					result = true;
				}
				else if (arr[i] != 0)
				{
					pairs.add(arr[i]);
				}
			}
		}
		if (result == false)
		{
			// When no resultant pair exists
			System.out.print("\n Output : No \n");
		}
		else
		{
			System.out.print("\n Pair (" + a + "," + (b) + ")");
			System.out.print("\n Output : Yes \n");
		}
	}
	public static void main(String[] arg)
	{
		Product task = new Product();
		int[] arr = {
			8 , 2 , 7 , 4 , 3 , 9 , 5 , 0
		};
		// Get number of element
		int n = arr.length;
		// product
		int k = 21;
		// Case A
		task.pairProduct(arr, n, k);
		// product
		k = 29;
		// Case B
		task.pairProduct(arr, n, k);
		// product
		k = 0;
		// Case C
		task.pairProduct(arr, n, k);
	}
}

Output

 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 21
 Pair (3,7)
 Output : Yes
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 29
 Output : No
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 0
 Pair (0,5)
 Output : Yes
// Include header file
#include <iostream>
#include <set>
using namespace std;

class Product
{
	public:
		//Function which is display array elements
		void display(int arr[], int n)
		{
			for (int i = 0; i < n; ++i)
			{
				cout << "  " << arr[i];
			}
			cout << "\n";
		}
	// Find pair of given product in an array
	void pairProduct(int arr[], int n, int k)
	{
		// Result indicator
		bool result = false;
		// Display given array
		cout << " Given Array  : ";
		this->display(arr, n);
		// Display given product
		cout << " Given Product : " << k;
		// Provides pair info when product exist
		int a = 0;
		int b = 0;
		if (n > 1)
		{
			//  Collection of all unique elements
			set <int> pairs ;
			// Get the distinct pair combination
			for (int i = 0; i < n && result == false; ++i)
			{
				if (arr[i] == 0)
				{
					if (k == 0)
					{
						result = true;
						a = 0;
						if (i == 0)
						{
							b = arr[i + 1];
						}
						else
						{
							b = arr[i - 1];
						}
					}
				}
				else if ((k % arr[i] == 0) && pairs.find(k / arr[i]) != pairs.end())
				{
					// When given product is generated by pair of two elements
					a = arr[i];
					b = (k / arr[i]);
					result = true;
				}
				else if (arr[i] != 0)
				{
					pairs.insert(arr[i]);
				}
			}
		}
		if (result == false)
		{
			// When no resultant pair exists
			cout << "\n Output : No \n";
		}
		else
		{
			cout << "\n Pair (" << a << "," << (b) << ")";
			cout << "\n Output : Yes \n";
		}
	}
};
int main()
{
	Product task = Product();
	int arr[] = {
		8 , 2 , 7 , 4 , 3 , 9 , 5 , 0
	};
	// Get number of element
	int n = sizeof(arr) / sizeof(arr[0]);
	// product
	int k = 21;
	// Case A
	task.pairProduct(arr, n, k);
	// product
	k = 29;
	// Case B
	task.pairProduct(arr, n, k);
	// product
	k = 0;
	// Case C
	task.pairProduct(arr, n, k);
	return 0;
}

Output

 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 21
 Pair (3,7)
 Output : Yes
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 29
 Output : No
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 0
 Pair (0,5)
 Output : Yes
// Include namespace system
using System;
using System.Collections.Generic;
/*
    C# Program
    Check pair with given product in an array
*/
public class Product
{
	//Function which is display array elements
	public void display(int[] arr, int n)
	{
		for (int i = 0; i < n; ++i)
		{
			Console.Write("  " + arr[i]);
		}
		Console.Write("\n");
	}
	// Find pair of given product in an array
	public void pairProduct(int[] arr, int n, int k)
	{
		// Result indicator
		Boolean result = false;
		// Display given array
		Console.Write(" Given Array  : ");
		display(arr, n);
		// Display given product
		Console.Write(" Given Product : " + k);
		// Provides pair info when product exist
		int a = 0;
		int b = 0;
		if (n > 1)
		{
			//  Collection of all unique elements
			HashSet < int > pairs = new HashSet < int > ();
			// Get the distinct pair combination
			for (int i = 0; i < n && result == false; ++i)
			{
				if (arr[i] == 0)
				{
					if (k == 0)
					{
						result = true;
						a = 0;
						if (i == 0)
						{
							b = arr[i + 1];
						}
						else
						{
							b = arr[i - 1];
						}
					}
				}
				else if ((k % arr[i] == 0) && pairs.Contains(k / arr[i]))
				{
					// When given product is generated by pair of two elements
					a = arr[i];
					b = (k / arr[i]);
					result = true;
				}
				else if (arr[i] != 0)
				{
					pairs.Add(arr[i]);
				}
			}
		}
		if (result == false)
		{
			// When no resultant pair exists
			Console.Write("\n Output : No \n");
		}
		else
		{
			Console.Write("\n Pair (" + a + "," + b + ")");
			Console.Write("\n Output : Yes \n");
		}
	}
	public static void Main(String[] arg)
	{
		Product task = new Product();
		int[] arr = {
			8 , 2 , 7 , 4 , 3 , 9 , 5 , 0
		};
		// Get number of element
		int n = arr.Length;
		// product
		int k = 21;
		// Case A
		task.pairProduct(arr, n, k);
		// product
		k = 29;
		// Case B
		task.pairProduct(arr, n, k);
		// product
		k = 0;
		// Case C
		task.pairProduct(arr, n, k);
	}
}

Output

 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 21
 Pair (3,7)
 Output : Yes
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 29
 Output : No
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 0
 Pair (0,5)
 Output : Yes
<?php
/*
    Php Program
    Check pair with given product in an array
*/
class Product
{
	//Function which is display array elements
	public	function display( & $arr, $n)
	{
		for ($i = 0; $i < $n; ++$i)
		{
			echo "  ". $arr[$i];
		}
		echo "\n";
	}
	// Find pair of given product in an array
	public	function pairProduct( & $arr, $n, $k)
	{
		// Result indicator
		$result = false;
		// Display given array
		echo " Given Array  : ";
		$this->display($arr, $n);
		// Display given product
		echo " Given Product : ". $k;
		// Provides pair info when product exist
		$a = 0;
		$b = 0;
		if ($n > 1)
		{
			//  Collection of all unique elements
			$pairs = array();
			// Get the distinct pair combination
			for ($i = 0; $i < $n && $result == false; ++$i)
			{
				if ($arr[$i] == 0)
				{
					if ($k == 0)
					{
						$result = true;
						$a = 0;
						if ($i == 0)
						{
							$b = $arr[$i + 1];
						}
						else
						{
							$b = $arr[$i - 1];
						}
					}
				}
				else if (($k % $arr[$i] == 0) 
                         && in_array(($k / $arr[$i]), $pairs, TRUE))
					{
						// When given product is generated by pair of two elements
						$a = $arr[$i];
						$b = (intval($k / $arr[$i]));
						$result = true;
					}
					else if ($arr[$i] != 0 
                             && in_array(($k / $arr[$i]), $pairs, TRUE) == false)
					{
						$pairs[] = $arr[$i];
					}
				}
			}
			if ($result == false)
			{
				// When no resultant pair exists
				echo "\n Output : No \n";
			}
			else
			{
				echo "\n Pair (". $a .",". $b .")";
				echo "\n Output : Yes \n";
			}
		}
	}

	function main()
	{
		$task = new Product();
		$arr = array(8, 2, 7, 4, 3, 9, 5, 0);
		// Get number of element
		$n = count($arr);
		// product
		$k = 21;
		// Case A
		$task->pairProduct($arr, $n, $k);
		// product
		$k = 29;
		// Case B
		$task->pairProduct($arr, $n, $k);
		// product
		$k = 0;
		// Case C
		$task->pairProduct($arr, $n, $k);
	}
	main();

Output

 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 21
 Pair (3,7)
 Output : Yes
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 29
 Output : No
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 0
 Pair (0,5)
 Output : Yes
/*
    Node Js Program
    Check pair with given product in an array
*/
class Product
{
	//Function which is display array elements
	display(arr, n)
	{
		for (var i = 0; i < n; ++i)
		{
			process.stdout.write("  " + arr[i]);
		}
		process.stdout.write("\n");
	}
	// Find pair of given product in an array
	pairProduct(arr, n, k)
	{
		// Result indicator
		var result = false;
		// Display given array
		process.stdout.write(" Given Array  : ");
		this.display(arr, n);
		// Display given product
		process.stdout.write(" Given Product : " + k);
		// Provides pair info when product exist
		var a = 0;
		var b = 0;
		if (n > 1)
		{
			//  Collection of all unique elements
			var pairs = new Set();
			// Get the distinct pair combination
			for (var i = 0; i < n && result == false; ++i)
			{
				if (arr[i] == 0)
				{
					if (k == 0)
					{
						result = true;
						a = 0;
						if (i == 0)
						{
							b = arr[i + 1];
						}
						else
						{
							b = arr[i - 1];
						}
					}
				}
				else if ((k % arr[i] == 0) && pairs.has(parseInt(k / arr[i])))
					{
						// When given product is generated by pair of two elements
						a = arr[i];
						b = (parseInt(k / arr[i]));
						result = true;
					}
					else if (arr[i] != 0)
					{
						pairs.add(arr[i]);
					}
				}
			}
			if (result == false)
			{
				// When no resultant pair exists
				process.stdout.write("\n Output : No \n");
			}
			else
			{
				process.stdout.write("\n Pair (" + a + "," + b + ")");
				process.stdout.write("\n Output : Yes \n");
			}
		}
	}

	function main()
	{
		var task = new Product();
		var arr = [8, 2, 7, 4, 3, 9, 5, 0];
		// Get number of element
		var n = arr.length;
		// product
		var k = 21;
		// Case A
		task.pairProduct(arr, n, k);
		// product
		k = 29;
		// Case B
		task.pairProduct(arr, n, k);
		// product
		k = 0;
		// Case C
		task.pairProduct(arr, n, k);
	}
	main();

Output

 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 21
 Pair (3,7)
 Output : Yes
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 29
 Output : No
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 0
 Pair (0,5)
 Output : Yes
#  Python 3 Program
#  Check pair with given product in an array

class Product :
	# Function which is display list elements
	def display(self, arr, n) :
		i = 0
		while (i < n) :
			print("  ", arr[i], end = "")
			i += 1
		
		print(end = "\n")
	
	#  Find pair of given product in an list
	def pairProduct(self, arr, n, k) :
		#  Result indicator
		result = False
		#  Display given list
		print(" Given Array  : ", end = "")
		self.display(arr, n)
		#  Display given product
		print(" Given Product : ", k, end = "")
		#  Provides pair info when product exist
		a = 0
		b = 0
		if (n > 1) :
			#   Collection of all unique elements
			pairs = set()
			#  Get the distinct pair combination
			i = 0
			while (i < n and result == False) :
				if (arr[i] == 0) :
					if (k == 0) :
						result = True
						a = 0
						if (i == 0) :
							b = arr[i + 1]
						else :
							b = arr[i - 1]
						
					
				
				elif((k % arr[i] == 0) and int(k / arr[i]) in pairs) :
					#  When given product is generated by pair of two elements
					a = arr[i]
					b = int(k / arr[i])
					result = True
				
				elif(arr[i] != 0) :
					pairs.add(arr[i])
				
				i += 1
			
		
		if (result == False) :
			#  When no resultant pair exists
			print("\n Output : No ")
		else :
			print("\n Pair (", a ,",", b ,")", end = "")
			print("\n Output : Yes ")
		
	

def main() :
	task = Product()
	arr = [8, 2, 7, 4, 3, 9, 5, 0]
	#  Get number of element
	n = len(arr)
	#  product
	k = 21
	#  Case A
	task.pairProduct(arr, n, k)
	#  product
	k = 29
	#  Case B
	task.pairProduct(arr, n, k)
	#  product
	k = 0
	#  Case C
	task.pairProduct(arr, n, k)

if __name__ == "__main__": main()

Output

 Given Array  :    8   2   7   4   3   9   5   0
 Given Product :  21
 Pair ( 3 , 7 )
 Output : Yes
 Given Array  :    8   2   7   4   3   9   5   0
 Given Product :  29
 Output : No
 Given Array  :    8   2   7   4   3   9   5   0
 Given Product :  0
 Pair ( 0 , 5 )
 Output : Yes
#  Ruby Program
#  Check pair with given product in an array
require "set"
class Product 
	# Function which is display array elements
	def display(arr, n) 
		i = 0
		while (i < n) 
			print("  ", arr[i])
			i += 1
		end

		print("\n")
	end

	#  Find pair of given product in an array
	def pairProduct(arr, n, k) 
		#  Result indicator
		result = false
		#  Display given array
		print(" Given Array  : ")
		self.display(arr, n)
		#  Display given product
		print(" Given Product : ", k)
		#  Provides pair info when product exist
		a = 0
		b = 0
		if (n > 1) 
			#   Collection of all unique elements
			pairs = Set[] 
			#  Get the distinct pair combination
			i = 0
			while (i < n && result == false) 
				if (arr[i] == 0) 
					if (k == 0) 
						result = true
						a = 0
						if (i == 0) 
							b = arr[i + 1]
						else 
							b = arr[i - 1]
						end

					end

				elsif((k % arr[i] == 0) && pairs.include?(k / arr[i])) 
					#  When given product is generated by pair of two elements
					a = arr[i]
					b = (k / arr[i])
					result = true
				elsif(arr[i] != 0 ) 
					pairs.add(arr[i])
				end

				i += 1
			end

		end

		if (result == false) 
			#  When no resultant pair exists
			print("\n Output : No \n")
		else 
			print("\n Pair (", a ,",", b ,")")
			print("\n Output : Yes \n")
		end

	end

end

def main() 
	task = Product.new()
	arr = [8, 2, 7, 4, 3, 9, 5, 0]
	#  Get number of element
	n = arr.length
	#  product
	k = 21
	#  Case A
	task.pairProduct(arr, n, k)
	#  product
	k = 29
	#  Case B
	task.pairProduct(arr, n, k)
	#  product
	k = 0
	#  Case C
	task.pairProduct(arr, n, k)
end

main()

Output

 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 21
 Pair (3,7)
 Output : Yes 
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 29
 Output : No 
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 0
 Pair (0,5)
 Output : Yes 
import scala.collection.mutable._;
/*
    Scala Program
    Check pair with given product in an array
*/
class Product
{
	//Function which is display array elements
	def display(arr: Array[Int], n: Int): Unit = {
		var i: Int = 0;
		while (i < n)
		{
			print("  " + arr(i));
			i += 1;
		}
		print("\n");
	}
	// Find pair of given product in an array
	def pairProduct(arr: Array[Int], n: Int, k: Int): Unit = {
		// Result indicator
		var result: Boolean = false;
		// Display given array
		print(" Given Array  : ");
		this.display(arr, n);
		// Display given product
		print(" Given Product : " + k);
		// Provides pair info when product exist
		var a: Int = 0;
		var b: Int = 0;
		if (n > 1)
		{
			//  Collection of all unique elements
		
			var pairs: Set[Int] = Set();
			// Get the distinct pair combination
			var i: Int = 0;
			while (i < n && result == false)
			{
				if (arr(i) == 0)
				{
					if (k == 0)
					{
						result = true;
						a = 0;
						if (i == 0)
						{
							b = arr(i + 1);
						}
						else
						{
							b = arr(i - 1);
						}
					}
				}
				else if ((k % arr(i) == 0) && pairs.contains((k / arr(i))))
					{
						// When given product is generated by pair of two elements
						a = arr(i);
						b = ((k / arr(i)).toInt);
						result = true;
					}
					else if (arr(i) != 0)
					{
						pairs.add(arr(i));
					}
					i += 1;
				}
			}
			if (result == false)
			{
				// When no resultant pair exists
				print("\n Output : No \n");
			}
			else
			{
				print("\n Pair (" + a + "," + b + ")");
				print("\n Output : Yes \n");
			}
		}
	}
	object Main
	{
		def main(args: Array[String]): Unit = {
			var task: Product = new Product();
			var arr: Array[Int] = Array(8, 2, 7, 4, 3, 9, 5, 0);
			// Get number of element
			var n: Int = arr.length;
			// product
			var k: Int = 21;
			// Case A
			task.pairProduct(arr, n, k);
			// product
			k = 29;
			// Case B
			task.pairProduct(arr, n, k);
			// product
			k = 0;
			// Case C
			task.pairProduct(arr, n, k);
		}
	}

Output

 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 21
 Pair (3,7)
 Output : Yes
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 29
 Output : No
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 0
 Pair (0,5)
 Output : Yes
import Foundation
/*
    Swift 4 Program
    Check pair with given product in an array
*/
class Product
{
	//Function which is display array elements
	func display(_ arr: [Int], _ n: Int)
	{
		var i: Int = 0;
		while (i < n)
		{
			print("  ", arr[i], terminator: "");
			i += 1;
		}
		print(terminator: "\n");
	}
	// Find pair of given product in an array
	func pairProduct(_ arr: [Int], _ n: Int, _ k: Int)
	{
		// Result indicator
		var result: Bool = false;
		// Display given array
		print(" Given Array  : ", terminator: "");
		self.display(arr, n);
		// Display given product
		print(" Given Product : ", k, terminator: "");
		// Provides pair info when product exist
		var a: Int = 0;
		var b: Int = 0;
		if (n > 1)
		{
			//  Collection of all unique elements
			
			var pairs = Set<Int>();
			// Get the distinct pair combination
			var i: Int = 0;
			while (i < n && result == false)
			{
				if (arr[i] == 0)
				{
					if (k == 0)
					{
						result = true;
						a = 0;
						if (i == 0)
						{
							b = arr[i + 1];
						}
						else
						{
							b = arr[i - 1];
						}
					}
				}
				else if ((k % arr[i] == 0) && pairs.contains(k / arr[i]))
				{
					// When given product is generated by pair of two elements
					a = arr[i];
					b = (k / arr[i]);
					result = true;
				}
				else if (arr[i]  != 0)
				{
					pairs.insert(arr[i]);
				}
				i += 1;
			}
		}
		if (result == false)
		{
			// When no resultant pair exists
			print("\n Output : No ");
		}
		else
		{
			print("\n Pair (", a ,",", b ,")", terminator: "");
			print("\n Output : Yes ");
		}
	}
}
func main()
{
	let task: Product = Product();
	let arr: [Int] = [8, 2, 7, 4, 3, 9, 5, 0];
	// Get number of element
	let n: Int = arr.count;
	// product
	var k: Int = 21;
	// Case A
	task.pairProduct(arr, n, k);
	// product
	k = 29;
	// Case B
	task.pairProduct(arr, n, k);
	// product
	k = 0;
	// Case C
	task.pairProduct(arr, n, k);
}
main();

Output

 Given Array  :    8   2   7   4   3   9   5   0
 Given Product :  21
 Pair ( 3 , 7 )
 Output : Yes
 Given Array  :    8   2   7   4   3   9   5   0
 Given Product :  29
 Output : No
 Given Array  :    8   2   7   4   3   9   5   0
 Given Product :  0
 Pair ( 0 , 5 )
 Output : Yes
/*
    Kotlin Program
    Check pair with given product in an array
*/
class Product
{
	//Function which is display array elements
	fun display(arr: Array < Int > , n: Int): Unit
	{
		var i: Int = 0;
		while (i < n)
		{
			print("  " + arr[i]);
			i += 1;
		}
		print("\n");
	}
	// Find pair of given product in an array
	fun pairProduct(arr: Array < Int > , n: Int, k: Int): Unit
	{
		// Result indicator
		var result: Boolean = false;
		// Display given array
		print(" Given Array  : ");
		this.display(arr, n);
		// Display given product
		print(" Given Product : " + k);
		// Provides pair info when product exist
		var a: Int = 0;
		var b: Int = 0;
		if (n > 1)
		{
			//  Collection of all unique elements
			var pairs: MutableSet <Int> = mutableSetOf <Int> ();
			// Get the distinct pair combination
			var i: Int = 0;
			while (i < n && result == false)
			{
				if (arr[i] == 0)
				{
					if (k == 0)
					{
						result = true;
						a = 0;
						if (i == 0)
						{
							b = arr[i + 1];
						}
						else
						{
							b = arr[i - 1];
						}
					}
				}
				else if ((k % arr[i] == 0) && pairs.contains(k / arr[i]))
				{
					// When given product is generated by pair of two elements
					a = arr[i];
					b = (k / arr[i]);
					result = true;
				}
				else if (arr[i] != 0)
				{
					pairs.add(arr[i]);
				}
				i += 1;
			}
		}
		if (result == false)
		{
			// When no resultant pair exists
			print("\n Output : No \n");
		}
		else
		{
			print("\n Pair (" + a + "," + b + ")");
			print("\n Output : Yes \n");
		}
	}
}
fun main(args: Array < String > ): Unit
{
	var task: Product = Product();
	var arr: Array < Int > = arrayOf(8, 2, 7, 4, 3, 9, 5, 0);
	// Get number of element
	var n: Int = arr.count();
	// product
	var k: Int = 21;
	// Case A
	task.pairProduct(arr, n, k);
	// product
	k = 29;
	// Case B
	task.pairProduct(arr, n, k);
	// product
	k = 0;
	// Case C
	task.pairProduct(arr, n, k);
}

Output

 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 21
 Pair (3,7)
 Output : Yes
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 29
 Output : No
 Given Array  :   8  2  7  4  3  9  5  0
 Given Product : 0
 Pair (0,5)
 Output : Yes


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