Posted on by Kalkicode
Code Single linked list

Find sum of all perfect numbers in linked list

Here given code implementation process.

// C Program
// Find sum of all perfect numbers in linked list

#include <stdio.h>
 //for malloc function
#include <stdlib.h>

//Linked List Node
struct Node
{
	int data;
	struct Node *next;
};
//Create a node of linked list
struct Node *create_node(int data)
{
	//Create dynamic node
	struct Node *node = (struct Node *) malloc(sizeof(struct Node));
	if (node == NULL)
	{
		printf("Memory overflow\n");
	}
	else
	{
		//Set initial node value
		node->data = data;
		node->next = NULL;
	}
	return node;
}
//Add new node at end of linked list 
void insert(struct Node **head, int data)
{
	struct Node *node = create_node(data);
	if ( *head == NULL)
	{
		*head = node;
	}
	else
	{
		struct Node *temp = *head;
		//Find last node
		while (temp->next != NULL)
		{
			temp = temp->next;
		}
		//Add node at last possition
		temp->next = node;
	}
}
//Display linked list element
void display(struct Node *head)
{
	if (head == NULL)
	{
		printf("\nEmpty linked list\n");
		return;
	}
	struct Node *temp = head;
	printf("\n Linked Linked : ");
	while (temp != NULL)
	{
		printf("  %d", temp->data);
		temp = temp->next;
	}
}
//Get the sum of factor in a given number
int get_factor_sum(int num)
{
	int sum = 0;
	int i = 1;
	while (i <= (num / 2))
	{
		if (num % i == 0)
		{
			// When number is divisible by number i
			sum += i;
		}
		i++;
	}
	return sum;
}
//Find the sum of perfect node values in given linked list
void perfect_num_sum(struct Node *head)
{
	if (head == NULL)
	{
		printf("\n Empty Linked List \n");
		return;
	}
	//Define resultant variable
	int result = 0;
	//Get first node of linked list
	struct Node *temp = head;
	//iterate linked list node
	while (temp != NULL)
	{
		if (temp->data > 0 && temp->data == get_factor_sum(temp->data))
		{
			//When node data is perfect number
			result += temp->data;
		}
		//Visit to next node
		temp = temp->next;
	}
	//Display of calculated result
	printf("\n Perfect number sum is : %d\n", result);
}
int main()
{
	struct Node *head = NULL;
	//Create  linked list
	insert( &head, 5);
	insert( &head, 28);
	insert( &head, 7);
	insert( &head, 6);
	insert( &head, 1);
	insert( &head, 21);
	display(head);
	// 6 + 28  = 34
	perfect_num_sum(head);
	return 0;
}

Output

 Linked Linked :   5  28  7  6  1  21
 Perfect number sum is : 34
// Java Program
// Find sum of all perfect numbers in linked list

//Node of LinkedList
class Node
{
	public int data;
	public Node next;
	public Node(int data)
	{
		//Set node value
		this.data = data;
		this.next = null;
	}
}
class MyLinkedList
{
	public Node head;
	public Node tail;
	//Class constructors
	public MyLinkedList()
	{
		this.head = null;
		this.tail = null;
	}
	//insert node at last of linke list
	public void insert(int data)
	{
		//Create a node
		Node node = new Node(data);
		if (this.head == null)
		{
			//When linked list empty add first node
			this.head = node;
			this.tail = node;
		}
		else
		{
			//Add new node at end of linked list
			this.tail.next = node;
			this.tail = node;
		}
	}
	//Display linked list element
	public void display()
	{
		if (this.head == null)
		{
			System.out.print("\nEmpty linked list\n");
			return;
		}
		Node temp = this.head;
		System.out.print("\n Linked List : ");
		while (temp != null)
		{
			System.out.print("  " + temp.data);
			temp = temp.next;
		}
	}
	//Get the sum of factor in a given number
	public int get_factor_sum(int num)
	{
		int sum = 0;
		int i = 1;
		while (i <= (num / 2))
		{
			if (num % i == 0)
			{
				// When number is divisible by number i
				sum += i;
			}
			i++;
		}
		return sum;
	}
	//Find the sum of perfect node values in given linked list
	public void perfect_num_sum()
	{
		if (this.head == null)
		{
			System.out.print("\n Empty Linked List \n");
			return;
		}
		//Define resultant variable
		int result = 0;
		//Get first node of linked list
		Node temp = this.head;
		//iterate linked list node
		while (temp != null)
		{
			if (temp.data > 0 && temp.data == get_factor_sum(temp.data))
			{
				//When node data is perfect number
				result += temp.data;
			}
			//Visit to next node
			temp = temp.next;
		}
		//Display of calculated result
		System.out.print("\n Perfect number sum is : " + result + "\n");
	}
	public static void main(String[] args)
	{
		MyLinkedList obj = new MyLinkedList();
		//Add node in linked list
		obj.insert(5);
		obj.insert(28);
		obj.insert(7);
		obj.insert(6);
		obj.insert(1);
		obj.insert(21);
		obj.display();
		// 6 + 28  = 34
		obj.perfect_num_sum();
	}
}

Output

 Linked List :   5  28  7  6  1  21
 Perfect number sum is : 34
//Include header file
#include <iostream>
using namespace std;

// C++ Program
// Find sum of all perfect numbers in linked list

//Node of LinkedList
class Node
{
	public: 
    int data;
	Node * next;
	Node(int data)
	{
		//Set node value
		this->data = data;
		this->next = NULL;
	}
};
class MyLinkedList
{
	public: Node * head;
	Node * tail;
	//Class constructors
	MyLinkedList()
	{
		this->head = NULL;
		this->tail = NULL;
	}
	//insert node at last of linke list
	void insert(int data)
	{
		//Create a node
		Node * node = new Node(data);
		if (this->head == NULL)
		{
			//When linked list empty add first node
			this->head = node;
			this->tail = node;
		}
		else
		{
			//Add new node at end of linked list
			this->tail->next = node;
			this->tail = node;
		}
	}
	//Display linked list element
	void display()
	{
		if (this->head == NULL)
		{
			cout << "\nEmpty linked list\n";
			return;
		}
		Node * temp = this->head;
		cout << "\n Linked List : ";
		while (temp != NULL)
		{
			cout << "  " << temp->data;
			temp = temp->next;
		}
	}
	//Get the sum of factor in a given number
	int get_factor_sum(int num)
	{
		int sum = 0;
		int i = 1;
		while (i <= (num / 2))
		{
			if (num % i == 0)
			{
				// When number is divisible by number i
				sum += i;
			}
			i++;
		}
		return sum;
	}
	//Find the sum of perfect node values in given linked list
	void perfect_num_sum()
	{
		if (this->head == NULL)
		{
			cout << "\n Empty Linked List \n";
			return;
		}
		//Define resultant variable
		int result = 0;
		//Get first node of linked list
		Node * temp = this->head;
		//iterate linked list node
		while (temp != NULL)
		{
			if (temp->data > 0 && temp->data == this->get_factor_sum(temp->data))
			{
				//When node data is perfect number
				result += temp->data;
			}
			//Visit to next node
			temp = temp->next;
		}
		//Display of calculated result
		cout << "\n Perfect number sum is : " << result << "\n";
	}
};
int main()
{
	MyLinkedList obj = MyLinkedList();
	//Add node in linked list
	obj.insert(5);
	obj.insert(28);
	obj.insert(7);
	obj.insert(6);
	obj.insert(1);
	obj.insert(21);
	obj.display();
	// 6 + 28  = 34
	obj.perfect_num_sum();
	return 0;
}

Output

 Linked List :   5  28  7  6  1  21
 Perfect number sum is : 34
//Include namespace system
using System;

// C# Program
// Find sum of all perfect numbers in linked list

//Node of LinkedList
class Node
{
	public int data;
	public Node next;
	public Node(int data)
	{
		//Set node value
		this.data = data;
		this.next = null;
	}
}
class MyLinkedList
{
	public Node head;
	public Node tail;
	//Class constructors
	public MyLinkedList()
	{
		this.head = null;
		this.tail = null;
	}
	//insert node at last of linke list
	public void insert(int data)
	{
		//Create a node
		Node node = new Node(data);
		if (this.head == null)
		{
			//When linked list empty add first node
			this.head = node;
			this.tail = node;
		}
		else
		{
			//Add new node at end of linked list
			this.tail.next = node;
			this.tail = node;
		}
	}
	//Display linked list element
	public void display()
	{
		if (this.head == null)
		{
			Console.Write("\nEmpty linked list\n");
			return;
		}
		Node temp = this.head;
		Console.Write("\n Linked List : ");
		while (temp != null)
		{
			Console.Write("  " + temp.data);
			temp = temp.next;
		}
	}
	//Get the sum of factor in a given number
	public int get_factor_sum(int num)
	{
		int sum = 0;
		int i = 1;
		while (i <= (num / 2))
		{
			if (num % i == 0)
			{
				// When number is divisible by number i
				sum += i;
			}
			i++;
		}
		return sum;
	}
	//Find the sum of perfect node values in given linked list
	public void perfect_num_sum()
	{
		if (this.head == null)
		{
			Console.Write("\n Empty Linked List \n");
			return;
		}
		//Define resultant variable
		int result = 0;
		//Get first node of linked list
		Node temp = this.head;
		//iterate linked list node
		while (temp != null)
		{
			if (temp.data > 0 && temp.data == get_factor_sum(temp.data))
			{
				//When node data is perfect number
				result += temp.data;
			}
			//Visit to next node
			temp = temp.next;
		}
		//Display of calculated result
		Console.Write("\n Perfect number sum is : " + result + "\n");
	}
	public static void Main(String[] args)
	{
		MyLinkedList obj = new MyLinkedList();
		//Add node in linked list
		obj.insert(5);
		obj.insert(28);
		obj.insert(7);
		obj.insert(6);
		obj.insert(1);
		obj.insert(21);
		obj.display();
		// 6 + 28  = 34
		obj.perfect_num_sum();
	}
}

Output

 Linked List :   5  28  7  6  1  21
 Perfect number sum is : 34
<?php
// Php Program
// Find sum of all perfect numbers in linked list

//Node of LinkedList
class Node
{
	public $data;
	public $next;

	function __construct($data)
	{
		//Set node value
		$this->data = $data;
		$this->next = null;
	}
}
class MyLinkedList
{
	public $head;
	public $tail;
	//Class constructors
	function __construct()
	{
		$this->head = null;
		$this->tail = null;
	}
	//insert node at last of linke list
	public	function insert($data)
	{
		//Create a node
		$node = new Node($data);
		if ($this->head == null)
		{
			//When linked list empty add first node
			$this->head = $node;
			$this->tail = $node;
		}
		else
		{
			//Add new node at end of linked list
			$this->tail->next = $node;
			$this->tail = $node;
		}
	}
	//Display linked list element
	public	function display()
	{
		if ($this->head == null)
		{
			echo "\nEmpty linked list\n";
			return;
		}
		$temp = $this->head;
		echo "\n Linked List : ";
		while ($temp != null)
		{
			echo "  ". $temp->data;
			$temp = $temp->next;
		}
	}
	//Get the sum of factor in a given number
	public	function get_factor_sum($num)
	{
		$sum = 0;
		$i = 1;
		while ($i <= (intval($num / 2)))
		{
			if ($num % $i == 0)
			{
				// When number is divisible by number i
				$sum += $i;
			}
			$i++;
		}
		return $sum;
	}
	//Find the sum of perfect node values in given linked list
	public	function perfect_num_sum()
	{
		if ($this->head == null)
		{
			echo "\n Empty Linked List \n";
			return;
		}
		//Define resultant variable
		$result = 0;
		//Get first node of linked list
		$temp = $this->head;
		//iterate linked list node
		while ($temp != null)
		{
			if ($temp->data > 0 && $temp->data == $this->get_factor_sum($temp->data))
			{
				//When node data is perfect number
				$result += $temp->data;
			}
			//Visit to next node
			$temp = $temp->next;
		}
		//Display of calculated result
		echo "\n Perfect number sum is : ". $result ."\n";
	}
}

function main()
{
	$obj = new MyLinkedList();
	//Add node in linked list
	$obj->insert(5);
	$obj->insert(28);
	$obj->insert(7);
	$obj->insert(6);
	$obj->insert(1);
	$obj->insert(21);
	$obj->display();
	// 6 + 28  = 34
	$obj->perfect_num_sum();
}
main();

Output

 Linked List :   5  28  7  6  1  21
 Perfect number sum is : 34
// Node Js Program
// Find sum of all perfect numbers in linked list

//Node of LinkedList
class Node
{
	constructor(data)
	{
		//Set node value
		this.data = data;
		this.next = null;
	}
}
class MyLinkedList
{
	//Class constructors
	constructor()
	{
		this.head = null;
		this.tail = null;
	}
	//insert node at last of linke list
	insert(data)
	{
		//Create a node
		var node = new Node(data);
		if (this.head == null)
		{
			//When linked list empty add first node
			this.head = node;
			this.tail = node;
		}
		else
		{
			//Add new node at end of linked list
			this.tail.next = node;
			this.tail = node;
		}
	}
	//Display linked list element
	display()
	{
		if (this.head == null)
		{
			process.stdout.write("\nEmpty linked list\n");
			return;
		}
		var temp = this.head;
		process.stdout.write("\n Linked List : ");
		while (temp != null)
		{
			process.stdout.write("  " + temp.data);
			temp = temp.next;
		}
	}
	//Get the sum of factor in a given number
	get_factor_sum(num)
	{
		var sum = 0;
		var i = 1;
		while (i <= (parseInt(num / 2)))
		{
			if (num % i == 0)
			{
				// When number is divisible by number i
				sum += i;
			}
			i++;
		}
		return sum;
	}
	//Find the sum of perfect node values in given linked list
	perfect_num_sum()
	{
		if (this.head == null)
		{
			process.stdout.write("\n Empty Linked List \n");
			return;
		}
		//Define resultant variable
		var result = 0;
		//Get first node of linked list
		var temp = this.head;
		//iterate linked list node
		while (temp != null)
		{
			if (temp.data > 0 && temp.data == this.get_factor_sum(temp.data))
			{
				//When node data is perfect number
				result += temp.data;
			}
			//Visit to next node
			temp = temp.next;
		}
		//Display of calculated result
		process.stdout.write("\n Perfect number sum is : " + result + "\n");
	}
}

function main()
{
	var obj = new MyLinkedList();
	//Add node in linked list
	obj.insert(5);
	obj.insert(28);
	obj.insert(7);
	obj.insert(6);
	obj.insert(1);
	obj.insert(21);
	obj.display();
	// 6 + 28  = 34
	obj.perfect_num_sum();
}
main();

Output

 Linked List :   5  28  7  6  1  21
 Perfect number sum is : 34
#  Python 3 Program
#  Find sum of all perfect numbers in linked list

# Node of LinkedList
class Node :
	
	def __init__(self, data) :
		# Set node value
		self.data = data
		self.next = None
	

class MyLinkedList :
	
	# Class constructors
	def __init__(self) :
		self.head = None
		self.tail = None
	
	# insert node at last of linke list
	def insert(self, data) :
		# Create a node
		node = Node(data)
		if (self.head == None) :
			# When linked list empty add first node
			self.head = node
			self.tail = node
		else :
			# Add new node at end of linked list
			self.tail.next = node
			self.tail = node
		
	
	# Display linked list element
	def display(self) :
		if (self.head == None) :
			print("\nEmpty linked list\n", end = "")
			return
		
		temp = self.head
		print("\n Linked List : ", end = "")
		while (temp != None) :
			print("  ", temp.data, end = "")
			temp = temp.next
		
	
	# Get the sum of factor in a given number
	def get_factor_sum(self, num) :
		sum = 0
		i = 1
		while (i <= (int(num / 2))) :
			if (num % i == 0) :
				#  When number is divisible by number i
				sum += i
			
			i += 1
		
		return sum
	
	# Find the sum of perfect node values in given linked list
	def perfect_num_sum(self) :
		if (self.head == None) :
			print("\n Empty Linked List \n", end = "")
			return
		
		# Define resultant variable
		result = 0
		# Get first node of linked list
		temp = self.head
		# iterate linked list node
		while (temp != None) :
			if (temp.data > 0 and temp.data == self.get_factor_sum(temp.data)) :
				# When node data is perfect number
				result += temp.data
			
			# Visit to next node
			temp = temp.next
		
		# Display of calculated result
		print("\n Perfect number sum is : ", result ,"\n", end = "")
	

def main() :
	obj = MyLinkedList()
	# Add node in linked list
	obj.insert(5)
	obj.insert(28)
	obj.insert(7)
	obj.insert(6)
	obj.insert(1)
	obj.insert(21)
	obj.display()
	#  6 + 28  = 34
	obj.perfect_num_sum()

if __name__ == "__main__": main()

Output

 Linked List :    5   28   7   6   1   21
 Perfect number sum is :  34
#  Ruby Program
#  Find sum of all perfect numbers in linked list

# Node of LinkedList
class Node 

	# Define the accessor and reader of class Node  
	attr_reader :data, :next
	attr_accessor :data, :next


	
	def initialize(data)
	
		# Set node value
		self.data = data
		self.next = nil
	end
end
class MyLinkedList 

	# Define the accessor and reader of class MyLinkedList  
	attr_reader :head, :tail
	attr_accessor :head, :tail


	
	# Class constructors
	def initialize()
	
		self.head = nil
		self.tail = nil
	end
	# insert node at last of linke list
	def insert(data)
	
		# Create a node
		node = Node.new(data)
		if (self.head == nil)
		
			# When linked list empty add first node
			self.head = node
			self.tail = node
		else
		
			# Add new node at end of linked list
			self.tail.next = node
			self.tail = node
		end
	end
	# Display linked list element
	def display()
	
		if (self.head == nil)
		
			print("\nEmpty linked list\n")
			return
		end
		temp = self.head
		print("\n Linked List : ")
		while (temp != nil)
		
			print("  ", temp.data)
			temp = temp.next
		end
	end
	# Get the sum of factor in a given number
	def get_factor_sum(num)
	
		sum = 0
		i = 1
		while (i <= (num / 2))
		
			if (num % i == 0)
			
				#  When number is divisible by number i
				sum += i
			end
			i += 1
		end
		return sum
	end
	# Find the sum of perfect node values in given linked list
	def perfect_num_sum()
	
		if (self.head == nil)
		
			print("\n Empty Linked List \n")
			return
		end
		# Define resultant variable
		result = 0
		# Get first node of linked list
		temp = self.head
		# iterate linked list node
		while (temp != nil)
		
			if (temp.data > 0 && temp.data == self.get_factor_sum(temp.data))
			
				# When node data is perfect number
				result += temp.data
			end
			# Visit to next node
			temp = temp.next
		end
		# Display of calculated result
		print("\n Perfect number sum is : ", result ,"\n")
	end
end
def main()

	obj = MyLinkedList.new()
	# Add node in linked list
	obj.insert(5)
	obj.insert(28)
	obj.insert(7)
	obj.insert(6)
	obj.insert(1)
	obj.insert(21)
	obj.display()
	#  6 + 28  = 34
	obj.perfect_num_sum()
end
main()

Output

 Linked List :   5  28  7  6  1  21
 Perfect number sum is : 34

// Scala Program
// Find sum of all perfect numbers in linked list

//Node of LinkedList
class Node(var data: Int,
	var next: Node)
{
	def this(data: Int)
	{
		this(data, null);
	}
}
class MyLinkedList(var head: Node,
	var tail: Node)
{
	//Class constructors
	def this()
	{
		this(null, null);
	}
	//insert node at last of linke list
	def insert(data: Int): Unit = {
		//Create a node
		var node: Node = new Node(data);
		if (this.head == null)
		{
			//When linked list empty add first node
			this.head = node;
			this.tail = node;
		}
		else
		{
			//Add new node at end of linked list
			this.tail.next = node;
			this.tail = node;
		}
	}
	//Display linked list element
	def display(): Unit = {
		if (this.head == null)
		{
			print("\nEmpty linked list\n");
			return;
		}
		var temp: Node = this.head;
		print("\n Linked List : ");
		while (temp != null)
		{
			print("  " + temp.data);
			temp = temp.next;
		}
	}
	//Get the sum of factor in a given number
	def get_factor_sum(num: Int): Int = {
		var sum: Int = 0;
		var i: Int = 1;
		while (i <= ((num / 2).toInt))
		{
			if (num % i == 0)
			{
				// When number is divisible by number i
				sum += i;
			}
			i += 1;
		}
		return sum;
	}
	//Find the sum of perfect node values in given linked list
	def perfect_num_sum(): Unit = {
		if (this.head == null)
		{
			print("\n Empty Linked List \n");
			return;
		}
		//Define resultant variable
		var result: Int = 0;
		//Get first node of linked list
		var temp: Node = this.head;
		//iterate linked list node
		while (temp != null)
		{
			if (temp.data > 0 && temp.data == get_factor_sum(temp.data))
			{
				//When node data is perfect number
				result += temp.data;
			}
			//Visit to next node
			temp = temp.next;
		}
		//Display of calculated result
		print("\n Perfect number sum is : " + result + "\n");
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var obj: MyLinkedList = new MyLinkedList();
		//Add node in linked list
		obj.insert(5);
		obj.insert(28);
		obj.insert(7);
		obj.insert(6);
		obj.insert(1);
		obj.insert(21);
		obj.display();
		// 6 + 28  = 34
		obj.perfect_num_sum();
	}
}

Output

 Linked List :   5  28  7  6  1  21
 Perfect number sum is : 34
// Swift Program
// Find sum of all perfect numbers in linked list

//Node of LinkedList
class Node
{
	var data: Int;
	var next: Node? ;
	init(_ data: Int)
	{
		//Set node value
		self.data = data;
		self.next = nil;
	}
}
class MyLinkedList
{
	var head: Node? ;
	var tail: Node? ;
	//Class constructors
	init()
	{
		self.head = nil;
		self.tail = nil;
	}
	//insert node at last of linke list
	func insert(_ data: Int)
	{
		//Create a node
		let node: Node? = Node(data);
		if (self.head == nil)
		{
			//When linked list empty add first node
			self.head = node;
			self.tail = node;
		}
		else
		{
			//Add new node at end of linked list
			self.tail!.next = node;
			self.tail = node;
		}
	}
	//Display linked list element
	func display()
	{
		if (self.head == nil)
		{
			print("\nEmpty linked list\n", terminator: "");
			return;
		}
		var temp: Node? = self.head;
		print("\n Linked List : ", terminator: "");
		while (temp != nil)
		{
			print("  ", temp!.data, terminator: "");
			temp = temp!.next;
		}
	}
	//Get the sum of factor in a given number
	func get_factor_sum(_ num: Int) -> Int
	{
		var sum: Int = 0;
		var i: Int = 1;
		while (i <= (num / 2))
		{
			if (num % i == 0)
			{
				// When number is divisible by number i
				sum += i;
			}
			i += 1;
		}
		return sum;
	}
	//Find the sum of perfect node values in given linked list
	func perfect_num_sum()
	{
		if (self.head == nil)
		{
			print("\n Empty Linked List \n", terminator: "");
			return;
		}
		//Define resultant variable
		var result: Int = 0;
		//Get first node of linked list
		var temp: Node? = self.head;
		//iterate linked list node
		while (temp != nil)
		{
			if (temp!.data > 0 && temp!.data == self.get_factor_sum(temp!.data))
			{
				//When node data is perfect number
				result += temp!.data;
			}
			//Visit to next node
			temp = temp!.next;
		}
		//Display of calculated result
		print("\n Perfect number sum is : ", result ,"\n", terminator: "");
	}
}
func main()
{
	let obj: MyLinkedList = MyLinkedList();
	//Add node in linked list
	obj.insert(5);
	obj.insert(28);
	obj.insert(7);
	obj.insert(6);
	obj.insert(1);
	obj.insert(21);
	obj.display();
	// 6 + 28  = 34
	obj.perfect_num_sum();
}
main();

Output

 Linked List :    5   28   7   6   1   21
 Perfect number sum is :  34

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