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03_01_circular_e.py
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03_01_circular_e.py
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import random
class Node:
def __init__(self, data):
self.data = data
self.next = None
class LL:
def __init__(self):
self.head = None
def append(self, data):
new_node = Node(data)
if not self.head:
self.head = new_node
return
current = self.head
while current.next:
current = current.next
current.next = new_node
def search(self, data):
current = self.head
while current:
if current.data == data:
return True
current = current.next
return False
def delete(self, data):
if not self.head:
return
if self.head.data == data:
self.head = self.head.next
return
current = self.head
while current.next:
if current.next.data == data:
current.next = current.next.next
return
current = current.next
def insert(self, data):
new_node = Node(data)
if not self.head:
self.head = new_node
return
if self.head.data > data:
self.head = new_node
return
current = self.head
while current.next and current.next.data < data:
current = current.next
new_node.next = current.next
current.next = new_node
def print(self):
output = []
current = self.head
while current:
output.append(str(current.data))
current = current.next
print('->'.join(output))
class CLL:
def __init__(self):
self.head = None
self.tail = None
def append(self, data):
new_node = Node(data)
if not self.head:
self.head = new_node
self.tail = self.head
self.head.next = self.head
return
self.tail.next = new_node
new_node.next = self.head
self.tail = new_node
def print(self):
if not self.head:
return
output = []
current = self.head
while current.next != self.head:
output.append(str(current.data))
current = current.next
output.append(str(self.tail.data))
print(' -> '.join(output) + ' -> ...')
elements = [0,1,2,3,4,5,6,7,8,9]
random.shuffle(elements)
cll = CLL()
for e in elements:
cll.append(e)
cll.print()