LinkedListDuplicates.py

class Node:
    def __init__(self,data):
        self.data = data
        self.next = None 

class Solution: 
    def insert(self,head,data):
            p = Node(data)           
            if head==None:
                head=p
            elif head.next==None:
                head.next=p
            else:
                start=head
                while(start.next!=None):
                    start=start.next
                start.next=p
            return head  
            
    def display(self,head):
        current = head
        while current:
            print(current.data,end=' ')
            current = current.next

    def removeDuplicates(self,head):
        if head is None:
            return head
        values = [head.data]
        temp = head.next
        prev = head
        while temp:
            if temp.data in values:
                temp = temp.next
            else:
                values.append(temp.data)
                prev.next = temp
                prev = prev.next
                temp = temp.next
        prev.next = None
        return head

mylist= Solution()
T=int(input())
head=None
for i in range(T):
    data=int(input())
    head=mylist.insert(head,data)    
head=mylist.removeDuplicates(head)
mylist.display(head);