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simple stack and queue used DoublyCircularLinkedList

Project description

Welcome! stackNqueue

stackNqueue is simple packages provides stack and queue made up DoublyCircularLinkedList.
This packages includes Stack.py, Queue.py, DoublyCircularLinkedList.py
Stack.py and Queue.py inherit the DoublyCircularLinkedList class from DoublyCircularLinkedList.py

structure of packages

stackNqueue구조

inital states

stackNqueue초기상태

DoublyCircularLinkedList Methods

Method works
append(x) 리스트 끝에 x를 추가한다.
getNode(i: int) i번째 인덱스의 노드를 반환한다.
printList() 리스트를 출력한다.
pop(i: int) i번째 인덱스의 노드를 삭제하고 반환한다. 인자를 주지 않거나 -1을 줬을경우, 끝노드를 삭제하고 반환한다.
insert(i: int, x) i번째 인덱스에 item으로 x를 가진 노드를 삽입한다.

Stack Methods

Stack클래스는 DoublyCircularLinkedList클래스를 상속받는다

Method works
push(x) x값을 가진 노드를 리스트 끝에 추가한다.
pop() 리스트의 끝 노드를 삭제하고 반환한다.
top() 리스트의 끝 노드를 반환한다

Queue Methods

Queue클래스는 DoublyCircularLinkedList클래스를 상속받는다

Method works
enqueue(x) x를 리스트의 첫번 째 front에 추가한다.
dequeue() rear노드 즉, 리스트의 끝 노드를 삭제하고 반환한다.
rear() 첫번째로 추가된 리스트의 끝 노드 rear의 값을 반환한다.

Example

from stackNqueue.Stack import *
from stackNqueue.Queue import *

a = DoublyCircularLinkedList() # DoublyLinkedList 생성
a.append(1) # 1
a.insert(0, 3) # 3 -> 1
a.pop() # 3
a.pop(0) # []
a.printList() # print "there is no Item in List"

b = Stack() # Stack 생성
b.push(1) # 1
b.push(2) # 1 -> 2
b.push(3) # 1 -> 2 -> 3
b.printList() # print 1 -> 2 -> 3
print(b.pop()) # return 3
b.printList() # print 1 -> 2
print(b.top()) # print 2


c = Queue() # Queue 생성
c.enqueue(1) # 1
c.enqueue(2) # 2 -> 1
c.enqueue(3) # 3 -> 2 -> 1
print(c.dequeue()) # print 1
print(c.rear()) # print 2

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