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83.Remove Duplicates from Sorted List.py
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83.Remove Duplicates from Sorted List.py
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class ListNode:
def __init__(self,initdata):
self.val = initdata
self.next = None
def getData(self):
return self.val
def getNext(self):
return self.next
def setData(self,newdata):
self.val = newdata
def setNext(self,newnext):
self.next = newnext
class OrderedList:
def __init__(self):
self.head = None
def search(self,item):
current = self.head
found = False
stop = False
while current != None and not found and not stop:
if current.getData() == item:
found = True
else:
if current.getData() > item:
stop = True
else:
current = current.getNext()
return found
def add(self,item):
current = self.head
previous = None
stop = False
while current != None and not stop:
if current.getData() > item:
stop = True
else:
previous = current
current = current.getNext()
temp = ListNode(item)
if previous == None:
temp.setNext(self.head)
self.head = temp
else:
temp.setNext(current)
previous.setNext(temp)
def size(self):
current = self.head
count = 0
while current != None:
count = count + 1
current = current.getNext()
return count
def tolist(self):
p = self.head
re = []
while p!=None:
re.append(p.val)
p=p.next
return re
class Solution(object):
def deleteDuplicates(self, head):
"""
:type head: ListNode
:rtype: ListNode
"""
p,tmp = head,head
while p.next:
if p.next.val == p.val:
p.next = p.next.next
else:
p = p.next
return head
h = OrderedList()
h.add(1)
hh =h.head
Solution().deleteDuplicates(hh)
print(h.tolist())