Decimal Equivalent of Binary Linked List
Given a singly linked list of 0s and 1s find its decimal equivalent.
Input : 0->0->0->1->1->0->0->1->0 Output : 50 Input : 1->0->0 Output : 4
The decimal value of an empty linked list is considered as 0.
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Initialize the result as 0. Traverse the linked list and for each node, multiply the result by 2 and add the node’s data to it.
C++
// C++ Program to find decimal value of// binary linked list#include <bits/stdc++.h>using namespace std;/* Link list Node */class Node{ public: bool data; Node* next;};/* Returns decimal value of binary linked list */int decimalValue(Node *head){ // Initialized result int res = 0; // Traverse linked list while (head != NULL) { // Multiply result by 2 and add // head's data res = (res << 1) + head->data; // Move next head = head->next; } return res;}// Utility function to create a new node.Node *newNode(bool data){ Node *temp = new Node; temp->data = data; temp->next = NULL; return temp;}/* Driver program to test above function*/int main(){ /* Start with the empty list */ Node* head = newNode(1); head->next = newNode(0); head->next->next = newNode(1); head->next->next->next = newNode(1); cout << "Decimal value is " << decimalValue(head); return 0;}// This is code is contributed by rathbhupendra |
C
// C Program to find decimal value of// binary linked list#include<iostream>using namespace std;/* Link list Node */struct Node{ bool data; struct Node* next;};/* Returns decimal value of binary linked list */int decimalValue(struct Node *head){ // Initialized result int res = 0; // Traverse linked list while (head != NULL) { // Multiply result by 2 and add // head's data res = (res << 1) + head->data; // Move next head = head->next; } return res;}// Utility function to create a new node.Node *newNode(bool data){ struct Node *temp = new Node; temp->data = data; temp->next = NULL; return temp;}/* Driver program to test above function*/int main(){ /* Start with the empty list */ struct Node* head = newNode(1); head->next = newNode(0); head->next->next = newNode(1); head->next->next->next = newNode(1); cout << "Decimal value is " << decimalValue(head); return 0;} |
Java
// Java Program to find decimal value of// binary linked listclass GFG{ // Link list Node /static class Node{ boolean data; Node next;};// Returns decimal value of binary linked list /static int decimalValue( Node head){ // Initialized result int res = 0; // Traverse linked list while (head != null) { // Multiply result by 2 and add // head's data res = (res << 1) + (head.data?1:0); // Move next head = head.next; } return res;}// Utility function to create a new node.static Node newNode(int data){ Node temp = new Node(); temp.data = (data==1? true:false); temp.next = null; return temp;}// Driver code/public static void main(String args[]){ // Start with the empty list / Node head = newNode(1); head.next = newNode(0); head.next.next = newNode(1); head.next.next.next = newNode(1); System.out.print( "Decimal value is "+decimalValue(head));}}// This code is contributed by Arnab Kundu |
Python3
# Python3 program to find decimal value# of binary linked list# Node Classclass Node: # Function to initialise the # node object def __init__(self, data): # Assign data self.data = data # Initialize next as null self.next = None# Linked List class contains# a Node objectclass LinkedList: # Function to initialize head def __init__(self): self.head = None # Returns decimal value of binary # linked list def decimalValue(self, head): # Initialized result res = 0 # Traverse linked list while head: # Multiply result by 2 and # add head's data res = (res << 1) + head.data # Move Next head = head.next return res# Driver codeif __name__ == '__main__': #Start with the empty list llist = LinkedList() llist.head = Node(1) llist.head.next = Node(0) llist.head.next.next = Node(1) llist.head.next.next.next = Node(1) print("Decimal Value is {}".format( llist.decimalValue(llist.head)))# This code is contributed by Mohit Jangra |
C#
// C# Program to find decimal value of// binary linked listusing System;class GFG{ // Link list Node /public class Node{ public Boolean data; public Node next;};// Returns decimal value of binary linked liststatic int decimalValue( Node head){ // Initialized result int res = 0; // Traverse linked list while (head != null) { // Multiply result by 2 and add // head's data res = (res << 1) + (head.data ? 1 : 0); // Move next head = head.next; } return res;}// Utility function to create a new node.static Node newNode(int data){ Node temp = new Node(); temp.data = (data == 1 ? true : false); temp.next = null; return temp;}// Driver codpublic static void Main(String []args){ // Start with the empty list Node head = newNode(1); head.next = newNode(0); head.next.next = newNode(1); head.next.next.next = newNode(1); Console.WriteLine("Decimal value is " + decimalValue(head));}}// This code is contributed by Rajput-Ji |
Javascript
<script>// Javascript Program to find decimal value of// binary linked list // Link list Node / class Node { constructor(){ this.data = true; this.next = null; } } // Returns decimal value of binary linked list / function decimalValue(head) { // Initialized result var res = 0; // Traverse linked list while (head != null) { // Multiply result by 2 and add // head's data res = (res << 1) + (head.data ? 1 : 0); // Move next head = head.next; } return res; } // Utility function to create a new node. function newNode(data) {var temp = new Node(); temp.data = (data == 1 ? true : false); temp.next = null; return temp; } // Driver code/ // Start with the empty list /var head = newNode(1); head.next = newNode(0); head.next.next = newNode(1); head.next.next.next = newNode(1); document.write("Decimal value is " + decimalValue(head));// This code contributed by aashish1995</script> |
Output :
Decimal value is 11
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