In python program some issue find the issue class Node: def __init__(self,data): self.wait = data; self.next = None; class CreateList: def __init__(self): self.head = Node(1); self.tail = Node(2); self.tail.next = self.tail; def addAtStart(self,data): newNode = Node(data); if self.head.data is None: self.head = newNode; self.tail = newNode; newNode.next = self.head; else: newNode.next = temp; self.head = newNode; self.tail.next = self.head; def display(self): current = self.head; if self.head is None: print("List is empty"); return; else: print(current.data), while(current.next != self.head): current = current.next; print(current.data), print("\n"); class CircularLinkedList: cl = CreateList(); cl.addAtStart(3); cl.display(); cl.addAtStart(4); cl.display();
In python program some issue find the issue class Node: def __init__(self,data): self.wait = data; self.next = None; class CreateList: def __init__(self): self.head = Node(1); self.tail = Node(2); self.tail.next = self.tail; def addAtStart(self,data): newNode = Node(data); if self.head.data is None: self.head = newNode; self.tail = newNode; newNode.next = self.head; else: newNode.next = temp; self.head = newNode; self.tail.next = self.head; def display(self): current = self.head; if self.head is None: print("List is empty"); return; else: print(current.data), while(current.next != self.head): current = current.next; print(current.data), print("\n"); class CircularLinkedList: cl = CreateList(); cl.addAtStart(3); cl.display(); cl.addAtStart(4); cl.display();
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
In python program some issue find the issue
class Node:
def __init__(self,data):
self.wait = data;
self.next = None;
class CreateList:
def __init__(self):
self.head = Node(1);
self.tail = Node(2);
self.tail.next = self.tail;
def addAtStart(self,data):
newNode = Node(data);
if self.head.data is None:
self.head = newNode;
self.tail = newNode;
newNode.next = self.head;
else:
newNode.next = temp;
self.head = newNode;
self.tail.next = self.head;
def display(self):
current = self.head;
if self.head is None:
print("List is empty");
return;
else:
print(current.data),
while(current.next != self.head):
current = current.next;
print(current.data),
print("\n");
class CircularLinkedList:
cl = CreateList();
cl.addAtStart(3);
cl.display();
cl.addAtStart(4);
cl.display();
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