DScollection

This is very simple implementaion of Data Structure like Stack and Singly Linked List

Main Data Structures collections:-
Stack, Singly LinkedList, Doubly LinkedList, SinglyCirclular LinkedList, DoublyCircular LinkedList.

• In Stack you can use many methods.

  1) push(val) #provide any valu as argument to push into stack
  2) pop() #It will pop or delete the top element of stack
  3) peek() #It will give you the top element
  4) isEmpty() #It will tell you whether the stack is empty or not
  5) printStack() #It will print the stack in form of list
  

Note:- if you initialize the stack size to 5 and you push only 3 element or less then 5 element then rest of the stack will print as 0 because initially all the value in stack is 0.

---

In linked list I implement singly, doubly, singlyCircular.

• In Singly Linked List you can use so many methods, here is the list:-

      1) len()
      2) is_empty() #Make sure you use this method inside the print function
      3) traverse() #To print the linked list
      4) insertAtHead(val) #Provide any value as argument
      5) insertAtTail(val) #Provide any value as argument
      6) insertAtPos(val, pos) #First provide the value and then position
      7) deleteHead() #It will delete the head node
      8) deleteTail() #It will delete the tail node
      9) deleteAtPosition(pos) #Provide the position of node you want to delete
      10) insertAfter(val, newVal) #First provide the value after which you want to add a new value. E.g:- after 5 you want to add 6 then insertAfter(5, 6)
      11) insertBefore(val, newVal) #First provide the value before which you want to add a new value. E.g:- before 5 you want to add 6 then insertBefore(5, 6)
      12) mergeTwoLL(l1, l2) #Give two arguments. The first argument is the first linked list and second argument is second linked list
      13) get_tail() #It will print the tail node
      14) get_head() #It will print the head node
  

Here is the exmaple

Stack

     from DScollection import *

    #OR
    # from DScollection import Stack
    # from DScollection import SinglyLL

    s1 = Stack(5) #here 5 is the size of stack
    s1.push(1)
    s1.push(2)
    s1.push(3)
    s1.push(4)
    s1.push(5)
    #you can also use loop to push to avoid this number of lines
    s1.pop()
    s1.peek()
    s1.isEmpty()
    s1.printStack()

Singly Linked List

    from DScollection import *

    #OR
    # from DScollection import Stack
    # from DScollection import SinglyLL

    l1 = SinglyLL()
    l2 = SinglyLL()

    l1.insertAtTail(1)
    l1.insertAtTail(2)
    l1.insertAtTail(3)
    l1.traverse()

    l2.insertAtTail(4)
    l2.insertAtTail(5)
    l2.insertAtTail(6)
    l2.traverse()

    merged_list = SinglyLL()
    merged_list.mergeTwoLL(l1, l2)

    merged_list.traverse()
    len(merged_list)

I will update this with all the data structure with ready to use, stay updated.

Change Log

0.0.8 (23/09/2024)

-Eighth Release -Add updates.