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Linked_List.py
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Linked_List.py
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from Linked_Node import Node
class Linked_List(object):
def __init__(self, value):
self.head = Node(value)
def getHead(self):
return self.head
def addToTail(self, value):
current = self.getHead()
while(current.getNext() is not None):
current = current.getNext()
current.setNext(Node(value))
def findValue(self, value):
current = self.getHead()
while(current.getNext() is not None):
if(current.getData() == value):
return True
else:
current = current.getNext()
if(current.getData() == value):
return True
else:
return False
def removeValue(self, value):
current = self.getHead()
if(current.getData() is value):
self.head = current.getNext()
del current
return
while(current.getNext().getNext() is not None and current.getNext().getData() is not value):
current = current.getNext()
if(current.getNext().getData() is value):
if(current.getNext().getNext() is None):
next = current.getNext()
current.setNext(None)
del next
else:
next = current.getNext()
current.setNext(next.getNext())
del next
def printList(self):
current = self.getHead()
while(current.getNext() is not None):
print(current)
current = current.getNext()
print(current)
if __name__ == "__main__":
a = Linked_List(5)
a.addToTail(6)
a.addToTail(7)
a.addToTail(7)
a.addToTail(3)
a.addToTail(2)
a.printList()
a.removeValue(7)
a.removeValue(2)
a.printList()
a.removeValue(5)
a.printList()
print(a.findValue(7))
print(a.findValue(5))