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Tug of War

Here given code implementation process.

// C Program 
// Tug of War

#include <stdio.h>
#include <limits.h> //for INT_MAX

//Display elements of given array
void printArray(int arr[], int size)
{
    for (int i = 0; i < size; ++i)
    {
        printf("  %d", arr[i]);
    }
    printf("\n");
}

// Returns the difference of two numbers
int getDifference(int a,int b)
{
    if(a > b)
    {
        return a-b;
    }
    else
    {
        return b-a;
    }
}

// Find two subsets of minimum difference
void subset(int arr[],
    int visit[], 
    int result[], 
    int n, 
    int sum, 
    int i, 
    int j,
    int k,
    int *difference)
{

    if(j == n/2 || i == n || visit[i] != 0 || *difference == 0)
    {
        // When result are found or no need to visit current element
        return;
    }
    // Visit to next element through by recursion
    subset(arr,visit,result,n,sum,i+1,j, k,difference);

    // Set current element are active (used)
    visit[i] = 1;
    
    if(j==(n/2)-1)
    {
        if(getDifference(sum/2 , k+arr[i]) < *difference)
        {
            // When a new minimum difference is obtained
            *difference = getDifference(sum/2 , k+arr[i]);

            // Get the new result
            for (int l = 0; l < n; ++l)
            {
               result[l] = visit[l];
            }
        }
    }
    // Visit to next element through by recursion
    subset(arr,visit,result,n,sum,i+1,j+1,k+arr[i],difference);

    // Change status of visited element
    visit[i] = 0;
}

// Handles the request to find subset of minimum sum
void tugOfWar(int arr[],int n)
{

    if(n <= 1)
    {
        return;
    }
    // Loop controlling variable
    int i = 0;

    // This are used to find subset result
    int visit[n];
    int result[n];

    // Initialize current sum
    int sum = 0;

    for (i = 0; i < n; ++i)
    {
        visit[i] = 0;

        result[i] = 0;
        
        sum = sum + arr[i];
    }

    int difference = INT_MAX;

    // Find subset
    subset(arr,visit,result,n,sum,0,0, 0,&difference);
 
	printArray(arr,n);
    // Display the calculated total sum
    printf("  Total Sum : %d \n",sum);
    // Reset the sum value
    sum = 0;
    // Display elements of first set A
    for (i = 0; i < n; ++i)
    {
        if(result[i]==0)
        {
            printf("  %d",arr[i]);
            sum = sum + arr[i];
        }
    }
    // Display the sum of set A
    printf("\n  Set A Sum : %d \n",sum);
    // Reset the sum value
    sum = 0;
    // Display elements of first set B
    for (i = 0; i < n; ++i)
    {
        if(result[i]==1)
        {
            printf("  %d",arr[i]);
            sum = sum + arr[i];
        }
    }
    // Display the sum of set B
    printf("\n  Set B Sum : %d\n",sum);
}


int main(int argc, char const *argv[])
{
    // Define array of integer elements
    int arr[] = {6,8,35,-24,62,82,13,56,32};

    // Get the size
    int n = sizeof(arr)/sizeof(arr[0]);

    tugOfWar(arr,n);

    return 0;
}

Output

  6  8  35  -24  62  82  13  56  32
  Total Sum : 270
  6  35  -24  62  56
  Set A Sum : 135
  8  82  13  32
  Set B Sum : 135
/*
  Java Program for
  Tug of War 
*/
class TugOfWar
{
	public int difference;
	public TugOfWar()
	{
		this.difference = Integer.MAX_VALUE;
	}
	//Display elements of given array
	public void printArray(int[] arr, int size)
	{
		for (int i = 0; i < size; ++i)
		{
			System.out.print("  " + arr[i]);
		}
		System.out.print("\n");
	}
	// Returns the difference of two numbers
	public int getDifference(int a, int b)
	{
		if (a > b)
		{
			return a - b;
		}
		else
		{
			return b - a;
		}
	}
	// Find two subsets of minimum difference
	public void subset(int[] arr, boolean[] visit, boolean[] result, int n, int sum, int i, int j, int k)
	{
		if (j == n / 2 || i == n || visit[i] == true || this.difference == 0)
		{
			// When result are found or no need to visit current element
			return;
		}
		// Visit to next element through by recursion
		subset(arr, visit, result, n, sum, i + 1, j, k);
		// Set current element are active (used)
		visit[i] = true;
		if (j == (n / 2) - 1)
		{
			if (getDifference(sum / 2, k + arr[i]) < this.difference)
			{
				// When a new minimum difference is obtained
				this.difference = getDifference(sum / 2, k + arr[i]);
				// Get the new result
				for (int l = 0; l < n; ++l)
				{
					result[l] = visit[l];
				}
			}
		}
		// Visit to next element through by recursion
		subset(arr, visit, result, n, sum, i + 1, j + 1, k + arr[i]);
		// Change status of visited element
		visit[i] = false;
	}
	// Handles the request to find subset of minimum sum
	public void tugOfWar(int[] arr, int n)
	{
		if (n <= 1)
		{
			return;
		}
		// Loop controlling variable
		int i = 0;
		// This are used to find subset result
		boolean[] visit = new boolean[n];
		boolean[] result = new boolean[n];
		// Initialize current sum
		int sum = 0;
		for (i = 0; i < n; ++i)
		{
			visit[i] = false;
			result[i] = false;
			sum = sum + arr[i];
		}
		this.difference = Integer.MAX_VALUE;
		// Find subset
		subset(arr, visit, result, n, sum, 0, 0, 0);
		// Reset the sum value
		
		printArray(arr, n);
		// Display the calculated total sum
		System.out.print("  Total Sum : " + sum + " \n");
		// Reset the sum value
      	sum = 0;
      
        // Display elements of first set A
		for (i = 0; i < n; ++i)
		{
			if (result[i] == false)
			{
				System.out.print("  " + arr[i]);
				sum = sum + arr[i];
			}
		}
		// Display the sum of set A
		System.out.print("\n  Set A Sum : " + sum + " \n");
		// Reset the sum value
		sum = 0;
		// Display elements of first set B
		for (i = 0; i < n; ++i)
		{
			if (result[i] == true)
			{
				System.out.print("  " + arr[i]);
				sum = sum + arr[i];
			}
		}
		// Display the sum of set B
		System.out.print("\n  Set B Sum : " + sum + "\n");
	}
	public static void main(String[] args)
	{
		TugOfWar task = new TugOfWar();
		// Define array of integer elements
		int[] arr = {
			6 , 8 , 35 , -24 , 62 , 82 , 13 , 56 , 32
		};
		// Get the size
		int n = arr.length;
		task.tugOfWar(arr, n);
	}
}

Output

  6  8  35  -24  62  82  13  56  32
  Total Sum : 270
  6  35  -24  62  56
  Set A Sum : 135
  8  82  13  32
  Set B Sum : 135
// Include header file
#include <iostream>
#include<limits.h>
using namespace std;
/*
  C++ Program for
  Tug of War 
*/
class TugOfWar
{
	public: int difference;
	TugOfWar()
	{
		this->difference = INT_MAX;
	}
	//Display elements of given array
	void printArray(int arr[], int size)
	{
		for (int i = 0; i < size; ++i)
		{
			cout << "  " << arr[i];
		}
		cout << "\n";
	}
	// Returns the difference of two numbers
	int getDifference(int a, int b)
	{
		if (a > b)
		{
			return a - b;
		}
		else
		{
			return b - a;
		}
	}
	// Find two subsets of minimum difference
	void subset(int arr[], bool visit[], bool result[], int n, int sum, int i, int j, int k)
	{
		// When result are found or no need to visit current element
		if (j == n / 2 || i == n || visit[i] == true || this->difference == 0)
		{
			return;
		}
		// Visit to next element through by recursion
		this->subset(arr, visit, result, n, sum, i + 1, j, k);
		// Set current element are active (used)
		visit[i] = true;
		if (j == (n / 2) - 1)
		{
			if (this->getDifference(sum / 2, k + arr[i]) < this->difference)
			{
				// When a new minimum difference is obtained
				this->difference = this->getDifference(sum / 2, k + arr[i]);
				// Get the new result
				for (int l = 0; l < n; ++l)
				{
					result[l] = visit[l];
				}
			}
		}
		// Visit to next element through by recursion
		this->subset(arr, visit, result, n, sum, i + 1, j + 1, k + arr[i]);
		// Change status of visited element
		visit[i] = false;
	}
	// Handles the request to find subset of minimum sum
	void tugOfWar(int arr[], int n)
	{
		if (n <= 1)
		{
			return;
		}
		// Loop controlling variable
		int i = 0;
		// This are used to find subset result
		bool visit[n];
		bool result[n];
		// Initialize current sum
		int sum = 0;
		for (i = 0; i < n; ++i)
		{
			visit[i] = false;
			result[i] = false;
			sum = sum + arr[i];
		}
		this->difference = INT_MAX;
		// Find subset
		this->subset(arr, visit, result, n, sum, 0, 0, 0);
		// Reset the sum value
		this->printArray(arr, n);
		// Display the calculated total sum
		cout << "  Total Sum : " << sum << " \n";
		// Reset the sum value
		sum = 0;
		// Display elements of first set A
		for (i = 0; i < n; ++i)
		{
			if (result[i] == false)
			{
				cout << "  " << arr[i];
				sum = sum + arr[i];
			}
		}
		// Display the sum of set A
		cout << "\n  Set A Sum : " << sum << " \n";
		// Reset the sum value
		sum = 0;
		// Display elements of first set B
		for (i = 0; i < n; ++i)
		{
			if (result[i] == true)
			{
				cout << "  " << arr[i];
				sum = sum + arr[i];
			}
		}
		// Display the sum of set B
		cout << "\n  Set B Sum : " << sum << "\n";
	}
};
int main()
{
	TugOfWar task = TugOfWar();
	// Define array of integer elements
	int arr[] = {
		6 , 8 , 35 , -24 , 62 , 82 , 13 , 56 , 32
	};
	// Get the size
	int n = sizeof(arr) / sizeof(arr[0]);
	task.tugOfWar(arr, n);
	return 0;
}

Output

  6  8  35  -24  62  82  13  56  32
  Total Sum : 270
  6  35  -24  62  56
  Set A Sum : 135
  8  82  13  32
  Set B Sum : 135
// Include namespace system
using System;
/*
  C# Program for
  Tug of War 
*/
public class TugOfWar
{
	public int difference;
	public TugOfWar()
	{
		this.difference = int.MaxValue;
	}
	//Display elements of given array
	public void printArray(int[] arr, int size)
	{
		for (int i = 0; i < size; ++i)
		{
			Console.Write("  " + arr[i]);
		}
		Console.Write("\n");
	}
	// Returns the difference of two numbers
	public int getDifference(int a, int b)
	{
		if (a > b)
		{
			return a - b;
		}
		else
		{
			return b - a;
		}
	}
	// Find two subsets of minimum difference
	public void subset(int[] arr, Boolean[] visit, Boolean[] result, int n, int sum, int i, int j, int k)
	{
		// When result are found or no need to visit current element
		if (j == n / 2 || i == n || visit[i] == true || this.difference == 0)
		{
			return;
		}
		// Visit to next element through by recursion
		subset(arr, visit, result, n, sum, i + 1, j, k);
		// Set current element are active (used)
		visit[i] = true;
		if (j == (n / 2) - 1)
		{
			if (getDifference(sum / 2, k + arr[i]) < this.difference)
			{
				// When a new minimum difference is obtained
				this.difference = getDifference(sum / 2, k + arr[i]);
				// Get the new result
				for (int l = 0; l < n; ++l)
				{
					result[l] = visit[l];
				}
			}
		}
		// Visit to next element through by recursion
		subset(arr, visit, result, n, sum, i + 1, j + 1, k + arr[i]);
		// Change status of visited element
		visit[i] = false;
	}
	// Handles the request to find subset of minimum sum
	public void tugOfWar(int[] arr, int n)
	{
		if (n <= 1)
		{
			return;
		}
		// Loop controlling variable
		int i = 0;
		// This are used to find subset result
		Boolean[] visit = new Boolean[n];
		Boolean[] result = new Boolean[n];
		// Initialize current sum
		int sum = 0;
		for (i = 0; i < n; ++i)
		{
			visit[i] = false;
			result[i] = false;
			sum = sum + arr[i];
		}
		this.difference = int.MaxValue;
		// Find subset
		subset(arr, visit, result, n, sum, 0, 0, 0);
		// Reset the sum value
		printArray(arr, n);
		// Display the calculated total sum
		Console.Write("  Total Sum : " + sum + " \n");
		// Reset the sum value
		sum = 0;
		// Display elements of first set A
		for (i = 0; i < n; ++i)
		{
			if (result[i] == false)
			{
				Console.Write("  " + arr[i]);
				sum = sum + arr[i];
			}
		}
		// Display the sum of set A
		Console.Write("\n  Set A Sum : " + sum + " \n");
		// Reset the sum value
		sum = 0;
		// Display elements of first set B
		for (i = 0; i < n; ++i)
		{
			if (result[i] == true)
			{
				Console.Write("  " + arr[i]);
				sum = sum + arr[i];
			}
		}
		// Display the sum of set B
		Console.Write("\n  Set B Sum : " + sum + "\n");
	}
	public static void Main(String[] args)
	{
		TugOfWar task = new TugOfWar();
		// Define array of integer elements
		int[] arr = {
			6 , 8 , 35 , -24 , 62 , 82 , 13 , 56 , 32
		};
		// Get the size
		int n = arr.Length;
		task.tugOfWar(arr, n);
	}
}

Output

  6  8  35  -24  62  82  13  56  32
  Total Sum : 270
  6  35  -24  62  56
  Set A Sum : 135
  8  82  13  32
  Set B Sum : 135
<?php
/*
  Php Program for
  Tug of War 
*/
class TugOfWar
{
	public $difference;

	function __construct()
	{
		$this->difference = PHP_INT_MAX;
	}
	//Display elements of given array
	public	function printArray( & $arr, $size)
	{
		for ($i = 0; $i < $size; ++$i)
		{
			echo "  ". $arr[$i];
		}
		echo "\n";
	}
	// Returns the difference of two numbers
	public	function getDifference($a, $b)
	{
		if ($a > $b)
		{
			return $a - $b;
		}
		else
		{
			return $b - $a;
		}
	}
	// Find two subsets of minimum difference
	public	function subset( & $arr, & $visit, & $result, $n, $sum, $i, $j, $k)
	{
		// When result are found or no need to visit current element
		if ($j == intval($n / 2) || $i == $n || $visit[$i] == true || $this->difference == 0)
		{
			return;
		}
		// Visit to next element through by recursion
		$this->subset($arr, $visit, $result, $n, $sum, $i + 1, $j, $k);
		// Set current element are active (used)
		$visit[$i] = true;
		if ($j == (intval($n / 2)) - 1)
		{
			if ($this->getDifference(intval($sum / 2), $k + $arr[$i]) < $this->difference)
			{
				// When a new minimum difference is obtained
				$this->difference = $this->getDifference(intval($sum / 2), $k + $arr[$i]);
				// Get the new result
				for ($l = 0; $l < $n; ++$l)
				{
					$result[$l] = $visit[$l];
				}
			}
		}
		// Visit to next element through by recursion
		$this->subset($arr, $visit, $result, $n, $sum, $i + 1, $j + 1, $k + $arr[$i]);
		// Change status of visited element
		$visit[$i] = false;
	}
	// Handles the request to find subset of minimum sum
	public	function tugOfWar( & $arr, $n)
	{
		if ($n <= 1)
		{
			return;
		}
		// Loop controlling variable
		$i = 0;
		// This are used to find subset result
		$visit = array_fill(0, $n, false);
		$result = array_fill(0, $n, false);
		// Initialize current sum
		$sum = 0;
		for ($i = 0; $i < $n; ++$i)
		{
			$sum = $sum + $arr[$i];
		}
		$this->printArray($arr, $n);
		// Display the calculated total sum
		echo "  Total Sum : ". $sum ." \n";
		$this->difference = PHP_INT_MAX;
		// Find subset
		$this->subset($arr, $visit, $result, $n, $sum, 0, 0, 0);
		// Reset the sum value
		// Reset the sum value
		$sum = 0;
		// Display elements of first set A
		for ($i = 0; $i < $n; ++$i)
		{
			if ($result[$i] == false)
			{
				echo "  ". $arr[$i];
				$sum = $sum + $arr[$i];
			}
		}
		// Display the sum of set A
		echo "\n  Set A Sum : ". $sum ." \n";
		// Reset the sum value
		$sum = 0;
		// Display elements of first set B
		for ($i = 0; $i < $n; ++$i)
		{
			if ($result[$i] == true)
			{
				echo "  ". $arr[$i];
				$sum = $sum + $arr[$i];
			}
		}
		// Display the sum of set B
		echo "\n  Set B Sum : ". $sum ."\n";
	}
}

function main()
{
	$task = new TugOfWar();
	// Define array of integer elements
	$arr = array(6, 8, 35, -24, 62, 82, 13, 56, 32);
	// Get the size
	$n = count($arr);
	$task->tugOfWar($arr, $n);
}
main();

Output

  6  8  35  -24  62  82  13  56  32
  Total Sum : 270
  6  35  -24  62  56
  Set A Sum : 135
  8  82  13  32
  Set B Sum : 135
/*
  Node Js Program for
  Tug of War 
*/
class TugOfWar
{
	constructor()
	{
		this.difference = Number.MAX_VALUE;
	}
	//Display elements of given array
	printArray(arr, size)
	{
		for (var i = 0; i < size; ++i)
		{
			process.stdout.write("  " + arr[i]);
		}
		process.stdout.write("\n");
	}
	// Returns the difference of two numbers
	getDifference(a, b)
	{
		if (a > b)
		{
			return a - b;
		}
		else
		{
			return b - a;
		}
	}
	// Find two subsets of minimum difference
	subset(arr, visit, result, n, sum, i, j, k)
	{
		// When result are found or no need to visit current element
		if (j == parseInt(n / 2) || i == n || visit[i] == true || this.difference == 0)
		{
			return;
		}
		// Visit to next element through by recursion
		this.subset(arr, visit, result, n, sum, i + 1, j, k);
		// Set current element are active (used)
		visit[i] = true;
		if (j == (parseInt(n / 2)) - 1)
		{
			if (this.getDifference(parseInt(sum / 2), k + arr[i]) < this.difference)
			{
				// When a new minimum difference is obtained
				this.difference = this.getDifference(parseInt(sum / 2), k + arr[i]);
				// Get the new result
				for (var l = 0; l < n; ++l)
				{
					result[l] = visit[l];
				}
			}
		}
		// Visit to next element through by recursion
		this.subset(arr, visit, result, n, sum, i + 1, j + 1, k + arr[i]);
		// Change status of visited element
		visit[i] = false;
	}
	// Handles the request to find subset of minimum sum
	tugOfWar(arr, n)
	{
		if (n <= 1)
		{
			return;
		}
		// Loop controlling variable
		var i = 0;
		// This are used to find subset result
		var visit = Array(n).fill(false);
		var result = Array(n).fill(false);
		// Initialize current sum
		var sum = 0;
		for (i = 0; i < n; ++i)
		{
			sum = sum + arr[i];
		}
		this.printArray(arr, n);
		// Display the calculated total sum
		process.stdout.write("  Total Sum : " + sum + " \n");
		this.difference = Number.MAX_VALUE;
		// Find subset
		this.subset(arr, visit, result, n, sum, 0, 0, 0);
		// Reset the sum value
		// Reset the sum value
		sum = 0;
		// Display elements of first set A
		for (i = 0; i < n; ++i)
		{
			if (result[i] == false)
			{
				process.stdout.write("  " + arr[i]);
				sum = sum + arr[i];
			}
		}
		// Display the sum of set A
		process.stdout.write("\n  Set A Sum : " + sum + " \n");
		// Reset the sum value
		sum = 0;
		// Display elements of first set B
		for (i = 0; i < n; ++i)
		{
			if (result[i] == true)
			{
				process.stdout.write("  " + arr[i]);
				sum = sum + arr[i];
			}
		}
		// Display the sum of set B
		process.stdout.write("\n  Set B Sum : " + sum + "\n");
	}
}

function main()
{
	var task = new TugOfWar();
	// Define array of integer elements
	var arr = [6, 8, 35, -24, 62, 82, 13, 56, 32];
	// Get the size
	var n = arr.length;
	task.tugOfWar(arr, n);
}
main();

Output

  6  8  35  -24  62  82  13  56  32
  Total Sum : 270
  6  35  -24  62  56
  Set A Sum : 135
  8  82  13  32
  Set B Sum : 135
import sys
#   Python 3 Program for
#   Tug of War 

class TugOfWar :
	
	def __init__(self) :
		self.difference = sys.maxsize
	
	# Display elements of given array
	def printArray(self, arr, size) :
		i = 0
		while (i < size) :
			print("  ", arr[i], end = "")
			i += 1
		
		print(end = "\n")
	
	#  Returns the difference of two numbers
	def getDifference(self, a, b) :
		if (a > b) :
			return a - b
		else :
			return b - a
		
	
	#  Find two subsets of minimum difference
	def subset(self, arr, visit, result, n, sum, i, j, k) :
		#  When result are found or no need to visit current element
		if (j == int(n / 2) or i == n or visit[i] == True or self.difference == 0) :
			return
		
		#  Visit to next element through by recursion
		self.subset(arr, visit, result, n, sum, i + 1, j, k)
		#  Set current element are active (used)
		visit[i] = True
		if (j == (int(n / 2)) - 1) :
			if (self.getDifference(int(sum / 2), k + arr[i]) < self.difference) :
				#  When a new minimum difference is obtained
				self.difference = self.getDifference(int(sum / 2), k + arr[i])
				#  Get the new result
				l = 0
				while (l < n) :
					result[l] = visit[l]
					l += 1
				
			
		
		#  Visit to next element through by recursion
		self.subset(arr, visit, result, n, sum, i + 1, j + 1, k + arr[i])
		#  Change status of visited element
		visit[i] = False
	
	#  Handles the request to find subset of minimum sum
	def tugOfWar(self, arr, n) :
		if (n <= 1) :
			return
		
		#  Loop controlling variable
		i = 0
		#  This are used to find subset result
		visit = [False] * (n)
		result = [False] * (n)
		#  Initialize current sum
		sum = 0
		while (i < n) :
			sum = sum + arr[i]
			i += 1
		
		self.printArray(arr, n)
		#  Display the calculated total sum
		print("  Total Sum : ", sum ," ")
		self.difference = sys.maxsize
		#  Find subset
		self.subset(arr, visit, result, n, sum, 0, 0, 0)
		#  Reset the sum value
		#  Reset the sum value
		sum = 0
		#  Display elements of first set A
		i = 0
		while (i < n) :
			if (result[i] == False) :
				print("  ", arr[i], end = "")
				sum = sum + arr[i]
			
			i += 1
		
		#  Display the sum of set A
		print("\n  Set A Sum : ", sum ," ")
		#  Reset the sum value
		sum = 0
		#  Display elements of first set B
		i = 0
		while (i < n) :
			if (result[i] == True) :
				print("  ", arr[i], end = "")
				sum = sum + arr[i]
			
			i += 1
		
		#  Display the sum of set B
		print("\n  Set B Sum : ", sum )
	

def main() :
	task = TugOfWar()
	#  Define array of integer elements
	arr = [6, 8, 35, -24, 62, 82, 13, 56, 32]
	#  Get the size
	n = len(arr)
	task.tugOfWar(arr, n)

if __name__ == "__main__": main()

Output

   6   8   35   -24   62   82   13   56   32
  Total Sum :  270
   6   35   -24   62   56
  Set A Sum :  135
   8   82   13   32
  Set B Sum :  135
#   Ruby Program for
#   Tug of War 

class TugOfWar  
	# Define the accessor and reader of class TugOfWar  
	attr_reader :difference
	attr_accessor :difference
 
	
	def initialize() 
		self.difference = (2 ** (0. size * 8 - 2))
	end

	# Display elements of given array
	def printArray(arr, size) 
		i = 0
		while (i < size) 
			print("  ", arr[i])
			i += 1
		end

		print("\n")
	end

	#  Returns the difference of two numbers
	def getDifference(a, b) 
		if (a > b) 
			return a - b
		else 
			return b - a
		end

	end

	#  Find two subsets of minimum difference
	def subset(arr, visit, result, n, sum, i, j, k) 
		#  When result are found or no need to visit current element
		if (j == n / 2 || i == n || visit[i] == true || self.difference == 0) 
			return
		end

		#  Visit to next element through by recursion
		self.subset(arr, visit, result, n, sum, i + 1, j, k)
		#  Set current element are active (used)
		visit[i] = true
		if (j == (n / 2) - 1) 
			if (self.getDifference(sum / 2, k + arr[i]) < self.difference) 
				#  When a new minimum difference is obtained
				self.difference = self.getDifference(sum / 2, k + arr[i])
				#  Get the new result
				l = 0
				while (l < n) 
					result[l] = visit[l]
					l += 1
				end

			end

		end

		#  Visit to next element through by recursion
		self.subset(arr, visit, result, n, sum, i + 1, j + 1, k + arr[i])
		#  Change status of visited element
		visit[i] = false
	end

	#  Handles the request to find subset of minimum sum
	def tugOfWar(arr, n) 
		if (n <= 1) 
			return
		end

		#  Loop controlling variable
		i = 0
		#  This are used to find subset result
		visit = Array.new(n) {false}
		result = Array.new(n) {false}
		#  Initialize current sum
		sum = 0
		while (i < n) 
			sum = sum + arr[i]
			i += 1
		end

		self.printArray(arr, n)
		#  Display the calculated total sum
		print("  Total Sum : ", sum ," \n")
		self.difference = (2 ** (0. size * 8 - 2))
		#  Find subset
		self.subset(arr, visit, result, n, sum, 0, 0, 0)
		#  Reset the sum value
		#  Reset the sum value
		sum = 0
		#  Display elements of first set A
		i = 0
		while (i < n) 
			if (result[i] == false) 
				print("  ", arr[i])
				sum = sum + arr[i]
			end

			i += 1
		end

		#  Display the sum of set A
		print("\n  Set A Sum : ", sum ," \n")
		#  Reset the sum value
		sum = 0
		#  Display elements of first set B
		i = 0
		while (i < n) 
			if (result[i] == true) 
				print("  ", arr[i])
				sum = sum + arr[i]
			end

			i += 1
		end

		#  Display the sum of set B
		print("\n  Set B Sum : ", sum ,"\n")
	end

end

def main() 
	task = TugOfWar.new()
	#  Define array of integer elements
	arr = [6, 8, 35, -24, 62, 82, 13, 56, 32]
	#  Get the size
	n = arr.length
	task.tugOfWar(arr, n)
end

main()

Output

  6  8  35  -24  62  82  13  56  32
  Total Sum : 270 
  6  35  -24  62  56
  Set A Sum : 135 
  8  82  13  32
  Set B Sum : 135

/*
  Scala Program for
  Tug of War 
*/
class TugOfWar(var difference: Int)
{
	def this()
	{
		this(Int.MaxValue);
	}
	//Display elements of given array
	def printArray(arr: Array[Int], size: Int): Unit = {
		var i: Int = 0;
		while (i < size)
		{
			print("  " + arr(i));
			i += 1;
		}
		print("\n");
	}
	// Returns the difference of two numbers
	def getDifference(a: Int, b: Int): Int = {
		if (a > b)
		{
			return a - b;
		}
		else
		{
			return b - a;
		}
	}
	// Find two subsets of minimum difference
	def subset(arr: Array[Int], visit: Array[Boolean], result: Array[Boolean], n: Int, sum: Int, i: Int, j: Int, k: Int): Unit = {
		// When result are found or no need to visit current element
		if (j == (n / 2).toInt || i == n || visit(i) == true || this.difference == 0)
		{
			return;
		}
		// Visit to next element through by recursion
		this.subset(arr, visit, result, n, sum, i + 1, j, k);
		// Set current element are active (used)
		visit(i) = true;
		if (j == ((n / 2).toInt) - 1)
		{
			if (this.getDifference((sum / 2).toInt, k + arr(i)) < this.difference)
			{
				// When a new minimum difference is obtained
				this.difference = this.getDifference((sum / 2).toInt, k + arr(i));
				// Get the new result
				var l: Int = 0;
				while (l < n)
				{
					result(l) = visit(l);
					l += 1;
				}
			}
		}
		// Visit to next element through by recursion
		this.subset(arr, visit, result, n, sum, i + 1, j + 1, k + arr(i));
		// Change status of visited element
		visit(i) = false;
	}
	// Handles the request to find subset of minimum sum
	def tugOfWar(arr: Array[Int], n: Int): Unit = {
		if (n <= 1)
		{
			return;
		}
		// Loop controlling variable
		var i: Int = 0;
		// This are used to find subset result
		var visit: Array[Boolean] = Array.fill[Boolean](n)(false);
		var result: Array[Boolean] = Array.fill[Boolean](n)(false);
		// Initialize current sum
		var sum: Int = 0;
		while (i < n)
		{
			sum = sum + arr(i);
			i += 1;
		}
		this.printArray(arr, n);
		// Display the calculated total sum
		print("  Total Sum : " + sum + " \n");
		this.difference = Int.MaxValue;
		// Find subset
		this.subset(arr, visit, result, n, sum, 0, 0, 0);
		// Reset the sum value
		// Reset the sum value
		sum = 0;
		// Display elements of first set A
		i = 0;
		while (i < n)
		{
			if (result(i) == false)
			{
				print("  " + arr(i));
				sum = sum + arr(i);
			}
			i += 1;
		}
		// Display the sum of set A
		print("\n  Set A Sum : " + sum + " \n");
		// Reset the sum value
		sum = 0;
		// Display elements of first set B
		i = 0;
		while (i < n)
		{
			if (result(i) == true)
			{
				print("  " + arr(i));
				sum = sum + arr(i);
			}
			i += 1;
		}
		// Display the sum of set B
		print("\n  Set B Sum : " + sum + "\n");
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var task: TugOfWar = new TugOfWar();
		// Define array of integer elements
		var arr: Array[Int] = Array(6, 8, 35, -24, 62, 82, 13, 56, 32);
		// Get the size
		var n: Int = arr.length;
		task.tugOfWar(arr, n);
	}
}

Output

  6  8  35  -24  62  82  13  56  32
  Total Sum : 270
  6  35  -24  62  56
  Set A Sum : 135
  8  82  13  32
  Set B Sum : 135
/*
  Swift 4 Program for
  Tug of War 
*/
class TugOfWar
{
	var difference: Int;
	init()
	{
		self.difference = Int.max;
	}
	//Display elements of given array
	func printArray(_ arr: [Int], _ size: Int)
	{
		var i: Int = 0;
		while (i < size)
		{
			print("  ", arr[i], terminator: "");
			i += 1;
		}
		print(terminator: "\n");
	}
	// Returns the difference of two numbers
	func getDifference(_ a: Int, _ b: Int)->Int
	{
		if (a > b)
		{
			return a - b;
		}
		else
		{
			return b - a;
		}
	}
	// Find two subsets of minimum difference
	func subset(_ arr: [Int], _ visit: inout[Bool], _ result: inout[Bool], _ n: Int, _ sum: Int, _ i: Int, _ j: Int, _ k: Int)
	{
		// When result are found or no need to visit current element
		if (j == n / 2 || i == n || visit[i] == true || self.difference == 0)
		{
			return;
		}
		// Visit to next element through by recursion
		self.subset(arr, &visit, &result, n, sum, i + 1, j, k);
		// Set current element are active (used)
		visit[i] = true;
		if (j == (n / 2) - 1)
		{
			if (self.getDifference(sum / 2, k + arr[i]) < self.difference)
			{
				// When a new minimum difference is obtained
				self.difference = self.getDifference(sum / 2, k + arr[i]);
				// Get the new result
				var l: Int = 0;
				while (l < n)
				{
					result[l] = visit[l];
					l += 1;
				}
			}
		}
		// Visit to next element through by recursion
		self.subset(arr, &visit, &result, n, sum, i + 1, j + 1, k + arr[i]);
		// Change status of visited element
		visit[i] = false;
	}
	// Handles the request to find subset of minimum sum
	func tugOfWar(_ arr: [Int], _ n: Int)
	{
		if (n <= 1)
		{
			return;
		}
		// Loop controlling variable
		var i: Int = 0;
		// This are used to find subset result
		var visit: [Bool] = Array(repeating: false, count: n);
		var result: [Bool] = Array(repeating: false, count: n);
		// Initialize current sum
		var sum: Int = 0;
		while (i < n)
		{
			sum = sum + arr[i];
			i += 1;
		}
		self.printArray(arr, n);
		// Display the calculated total sum
		print("  Total Sum : ", sum ," ");
		self.difference = Int.max;
		// Find subset
		self.subset(arr, &visit, &result, n, sum, 0, 0, 0);
		// Reset the sum value
		// Reset the sum value
		sum = 0;
		// Display elements of first set A
		i = 0;
		while (i < n)
		{
			if (result[i] == false)
			{
				print("  ", arr[i], terminator: "");
				sum = sum + arr[i];
			}
			i += 1;
		}
		// Display the sum of set A
		print("\n  Set A Sum : ", sum ," ");
		// Reset the sum value
		sum = 0;
		// Display elements of first set B
		i = 0;
		while (i < n)
		{
			if (result[i] == true)
			{
				print("  ", arr[i], terminator: "");
				sum = sum + arr[i];
			}
			i += 1;
		}
		// Display the sum of set B
		print("\n  Set B Sum : ", sum );
	}
}
func main()
{
	let task: TugOfWar = TugOfWar();
	// Define array of integer elements
	let arr: [Int] = [6, 8, 35, -24, 62, 82, 13, 56, 32];
	// Get the size
	let n: Int = arr.count;
	task.tugOfWar(arr, n);
}
main();

Output

   6   8   35   -24   62   82   13   56   32
  Total Sum :  270
   6   35   -24   62   56
  Set A Sum :  135
   8   82   13   32
  Set B Sum :  135
/*
  Kotlin Program for
  Tug of War 
*/
class TugOfWar
{
	var difference: Int;
	constructor()
	{
		this.difference = Int.MAX_VALUE;
	}
	//Display elements of given array
	fun printArray(arr: Array<Int> , size: Int): Unit
	{
		var i: Int = 0;
		while (i < size)
		{
			print("  " + arr[i]);
			i += 1;
		}
		print("\n");
	}
	// Returns the difference of two numbers
	fun getDifference(a: Int, b: Int): Int
	{
		if (a > b)
		{
			return a - b;
		}
		else
		{
			return b - a;
		}
	}
	// Find two subsets of minimum difference
	fun subset(arr: Array<Int> , visit: Array <Boolean> , result: Array <Boolean> , n: Int, sum: Int, i: Int, j: Int, k: Int): Unit
	{
		// When result are found or no need to visit current element
		if (j == n / 2 || i == n || visit[i] == true || this.difference == 0)
		{
			return;
		}
		// Visit to next element through by recursion
		this.subset(arr, visit, result, n, sum, i + 1, j, k);
		// Set current element are active (used)
		visit[i] = true;
		if (j == (n / 2) - 1)
		{
			if (this.getDifference(sum / 2, k + arr[i]) < this.difference)
			{
				// When a new minimum difference is obtained
				this.difference = this.getDifference(sum / 2, k + arr[i]);
				// Get the new result
				var l: Int = 0;
				while (l < n)
				{
					result[l] = visit[l];
					l += 1;
				}
			}
		}
		// Visit to next element through by recursion
		this.subset(arr, visit, result, n, sum, i + 1, j + 1, k + arr[i]);
		// Change status of visited element
		visit[i] = false;
	}
	// Handles the request to find subset of minimum sum
	fun tugOfWar(arr: Array <Int> , n: Int): Unit
	{
		if (n <= 1)
		{
			return;
		}
		// Loop controlling variable
		var i: Int = 0;
		// This are used to find subset result
		var visit: Array<Boolean> = Array(n)
		{
			false
		};
		var result: Array<Boolean> = Array(n)
		{
			false
		};
		// Initialize current sum
		var sum: Int = 0;
		while (i < n)
		{
			sum = sum + arr[i];
			i += 1;
		}
		this.printArray(arr, n);
		// Display the calculated total sum
		print("  Total Sum : " + sum + " \n");
		this.difference = Int.MAX_VALUE;
		// Find subset
		this.subset(arr, visit, result, n, sum, 0, 0, 0);
		// Reset the sum value
		// Reset the sum value
		sum = 0;
		// Display elements of first set A
		i = 0;
		while (i < n)
		{
			if (result[i] == false)
			{
				print("  " + arr[i]);
				sum = sum + arr[i];
			}
			i += 1;
		}
		// Display the sum of set A
		print("\n  Set A Sum : " + sum + " \n");
		// Reset the sum value
		sum = 0;
		// Display elements of first set B
		i = 0;
		while (i < n)
		{
			if (result[i] == true)
			{
				print("  " + arr[i]);
				sum = sum + arr[i];
			}
			i += 1;
		}
		// Display the sum of set B
		print("\n  Set B Sum : " + sum + "\n");
	}
}
fun main(args: Array <String> ): Unit
{
	var task: TugOfWar = TugOfWar();
	// Define array of integer elements
	var arr: Array < Int > = arrayOf(6, 8, 35, -24, 62, 82, 13, 56, 32);
	// Get the size
	var n: Int = arr.count();
	task.tugOfWar(arr, n);
}

Output

  6  8  35  -24  62  82  13  56  32
  Total Sum : 270
  6  35  -24  62  56
  Set A Sum : 135
  8  82  13  32
  Set B Sum : 135
Last updated on by Kalkicode




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