A network intrusion detection system (NIDS) analyzes all incoming and.pdf
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A network intrusion detection system (NIDS) analyzes all incoming and outgoing traffic for signs of intrusion. More specifically, a NIDS extracts the payload part of each network packet, and compares it with rules that are called vulnerability signatures. The payload is the actual data part of a network packet. Attackers have adapted their exploit techniques to try to evade the various checks that are performed by a NIDS. Attackers split the attack data into multiple network packets. That way, a single packet payload does not match any vulnerability signatures. On the other hand, defenders have improved the code of NIDS by reassembling fragmented network packets before analyzing them, so that their payloads are merged and analyzed as a single piece of data. NIDS uses a linked list to store network packets in ascending order based on TCP sequence numbers. When a new network packet arrives, the NIDS needs to insert it in the linked list at a position that does not break the ascending order of the nodes. Furthermore, if the linked list already contains a node, i.e. a packet, that has the same TCP sequence number as the new packet, then the NIDS does the following: 1) Removes the existing node from the linked list. 2) Extracts its payload and appends it to the payload of the new packet. 3) Inserts the revised new packet in the linked list at the appropriate position. In this project, we do not implement step 2 given that it is not pertinent to linked lists. This project consists of NIDS code written in Java that organizes network packets into a linked list in ascending order and without duplicates. This project description is accompanied by a zip archive named Code.zip, which contains two Java files, namely intrusionDetectorClass.java and IntNode.java. Students are required to implement the methods of the IntNode class. The intrusionDetectorClass simply uses the methods of the IntNode class to create and maintain the linked list of network packets. Students can verify the correctness of their IntNode class by comparing their output with the following output: Prj1 is running. The (sequence number, data) pairs in the 1inked 1ist are: (13,230185386) Running renovebuplicate() on target 13 The linked list is enpty. Running addNodeInOrder( () on target 13 and data 308329763 The (sequence number, data) pairs in the linked list are: (13,308329763) Running renoveDuplicate() on target 14 The (sequence number, data) pairs in the linked 1ist are: (13,3e8329763) Running addwodeInonder() on target 14 and data 248041794 The (sequence number, data) pairs in the linked list are: (13,3e8329763)(14,248941794) Running renoveDuplicate() on target 14 The (sequence number, data) pairs in the 1inked 11st are: (13,308329763) Running addNodeInorder() on target 14 and data 295106305 The (sequence number, data) pairs in the linked 1ist are: (13,308329763) (14, 295106305) Running renovebuplicate() on target 15 The (sequence number, data) pairs in the 1inked 11st are: (13,398.
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In the class we extensively discussed a node class called IntNode in.pdf
In the class we extensively discussed a node class called IntNode in which each linked list node
contains an integer and each node is linked forward to the next element in the list. Implement a
node class called DoublyIntNode in which each node contains an integer number and each node
is linked not only forward to the next element in the list but also backward to the previous
element in the list. Your implementation of DoublyIntNode should adapt and implement all the
methods of IntNode including the following methods:
Constructor for DoublyIntNode
addNodeAfter, removeNodeAfter
getData, setData
getForeLink, setForeLink
getBackLink, setBackLink
listCopy
listCopyWithTail
listLength
listPart
listPosition
listSearch
IntNode and Node classes:
public class IntNode{
private int data;
private IntNode link;
// methods here
}
public class Node {
private E data;
private Node link;
// methods here
}
Solution
program
#include
using namespace std;
struct list
{
struct list *prev;
int data;
struct list *next;
}
*node = NULL, *first = NULL, *last = NULL, *node1 = NULL, *node2 = NULL;
class Dlist
{
public:
void insert_beg() {
list *addBeg = new list;
cout << \"Enter value for the node:\" << endl;
cin >> addBeg->data;
if(first == NULL) {
addBeg->prev = NULL;
addBeg->next = NULL;
first = addBeg;
last = addBeg;
cout << \"Linked list Created!\" << endl;
}
else {
addBeg->prev = NULL;
first->prev = addBeg;
addBeg->next = first;
first = addBeg;
cout << \"Data Inserted at the beginning of the Linked list!\" << endl;
}
}
void insert_end() {
list *addEnd = new list;
cout << \"Enter value for the node:\" << endl;
cin >> addEnd->data;
if(first == NULL) {
addEnd->prev = NULL;
addEnd->next = NULL;
first = addEnd;
last = addEnd;
cout << \"Linked list Created!\" << endl;
}
else {
addEnd->next = NULL;
last->next = addEnd;
addEnd->prev = last;
last = addEnd;
cout << \"Data Inserted at the end of the Linked list!\" << endl;
}
}
void display() {
node = first;
cout << \"List of data in Linked list in Ascending order!\" << endl;
while(node != NULL) {
cout << node->data << endl;
node = node->next;
}
node = last;
cout << \"List of data in Linked list in Descending order!\" << endl;
while(node != NULL) {
cout << node->data << endl;
node = node->prev;
}
}
void del()
{
int count = 0, number, i;
node = node1 = node2 = first;
for(node = first; node != NULL; node = node->next)
cout << \"Enter value for the node:\" << endl;
count++;
display();
cout << count << \" nodes available here!\" << endl;
cout << \"Enter the node number which you want to delete:\" << endl;
cin >> number;
if(number != 1)
{
if(number < count && number > 0)
{
for(i = 2; i <= number; i++)
node = node->next;
for(i = 2; i <= number-1; i++)
node1 = node1->next;
for(i = 2; i <= number+1; i++)
node2 = node2->next;
node2->prev = node1;
node1->next = node2;
node->prev = NULL;
node->next = NULL;
node = NULL;
}
else if(number == count)
{
node = last;
last = node->prev;
last->next = NULL;
node = NULL;
}
else
cout << \"Invalid node.
This assignment and the next (#5) involve design and development of a.pdf
This assignment and the next (#5) involve design and development of a sequential
non contiguous and dynamic datastructure called LinkedList. A linked list object is
a container consisting of connected ListNode objects. As before, we are not going
to use pre-fabricated classes from the c++ library, but construct the LinkedList
ADT from scratch.
The first step is construction and testing of the ListNode class. A ListNode object
contains a data field and a pointer to the next ListNode object (note the recursive
definition).
#This assignment requires you to
1. Read the Assignment 4 Notes
2. Watch the Assignment 4 Support video
3. Implement the following methods of the ListNode class
-custom constructor
-setters for next pointer and data
4. Implement the insert and remove method in the main program
5. Scan the given template to find the above //TODO and implement the code
needed
//TODO in ListNodecpp.h file
public: ListNode(T idata, ListNode<T> * newNext);
public: void setNext(ListNode<T> * newNext);
public: void setData(T newData);
// TODO in main program
void remove(ListNode<int> * &front,int value)
void insert(ListNode<int> * &front,int value)
# The driver is given ListNodeMain.cpp is given to you that does the following
tests
1. Declares a pointer called front to point to a ListNode of datatype integer
2. Constructs four ListNodes with data 1,2,4 and adds them to form a linked
list.
3. Inserts ListNode with data 3 to the list
4. Removes node 1 and adds it back to test removing and adding the first
element
5. Removes node 3 to test removing a middle node
6. Removes node 4 to test removing the last node
7. Attempt to remove a non existent node
8. Remove all existing nodes to empty the list
9. Insert node 4 and then node 1 to test if insertions preserve order
10.Print the list
Main.cpp
#include <iostream>
#include "ListNodecpp.h"
// REMEMBER each ListNode has two parts : a data field
// and an address field. The address is either null or points to the next node
//in the chain
//Requires: integer value for searching, address of front
//Effects: traverses the list node chain starting from front until the end comparing search value
with listnode getData. Returns the original search value if found, if not adds +1 to indicate not
found
//Modifies: Nothing
int search(ListNode<int> * front, int value);
//Requires: integer value for inserting, address of front
//Effects: creates a new ListNode with value and inserts in proper position (increasing order)in
the chain. If chain is empty, adds to the beginning
//Modifies: front, if node is added at the beginning.
//Also changes the next pointer of the previous node to point to the
//newly inserted list node. the next pointer of the newly inserted pointer
//points to what was the next of the previous node.
//This way both previous and current links are adjusted
//******** NOTE the use of & in passing pointer to front as parameter -
// Why do you think this is needed ?**********
void insert(ListNode<int> * &fr.
Sorted number list implementation with linked listsStep 1 Inspec.pdf
Sorted number list implementation with linked lists
Step 1: Inspect the Node.java file
Inspect the class declaration for a doubly-linked list node in Node.java. Access Node.java by
clicking on the orange arrow next to LabProgram.java at the top of the coding window. The
Node class has three fields:
a double data value,
a reference to the next node, and
a reference to the previous node.
Each field is protected. So code outside of the class must use the provided getter and setter
methods to get or set a field.
Node.java is read only, since no changes are required.
Step 2: Implement the insert() method
A class for a sorted, doubly-linked list is declared in SortedNumberList.java. Implement the
SortedNumberList class's insert() method. The method must create a new node with the
parameter value, then insert the node into the proper sorted position in the linked list. Ex:
Suppose a SortedNumberList's current list is 23 47.25 86, then insert(33.5) is called. A new
node with data value 33.5 is created and inserted between 23 and 47.25, thus preserving the list's
sorted order and yielding: 23 35.5 47.25 86
Step 3: Test in develop mode
Code in main() takes a space-separated list of numbers and inserts each into a SortedNumberList.
The list is displayed after each insertion. Ex: If input is
then output is:
Try various program inputs, ensuring that each outputs a sorted list.
Step 4: Implement the remove() method
Implement the SortedNumberList class's remove() method. The method takes a parameter for the
number to be removed from the list. If the number does not exist in the list, the list is not
changed and false is returned. Otherwise, the first instance of the number is removed from the
list and true is returned.
Uncomment the commented-out part in main() that reads a second input line and removes
numbers from the list. Test in develop mode to ensure that insertion and removal both work
properly, then submit code for grading. Ex: If input is
then output is:
Given templates:
LabProgram.java
import java.util.Scanner;
import java.io.PrintWriter;
public class LabProgram {
// Prints the SortedNumberList's contents, in order from head to tail
public static void printList(SortedNumberList list) {
Node node = list.head;
while (null != node) {
System.out.print(node.getData() + " ");
node = node.getNext();
}
System.out.println();
}
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
String inputLine;
// Read the line of input numbers
inputLine = scnr.nextLine();
// Split on space character
String[] terms = inputLine.split(" ");
// Insert each value and show the sorted list's contents after each insertion
SortedNumberList list = new SortedNumberList();
for (Object term : terms) {
double number = Double.parseDouble(term.toString());
System.out.println("List after inserting " + number + ": ");
list.insert(number);
printList(list);
}
/*
// Read the input line with numbers to remove
inputLine = scnr.nextLine();
terms = inputLine.split(" ".
In java.Write a class called GenDoubleLinkedList which is a generi.pdf
In java.
Write a class called GenDoubleLinkedList which is a generic double linked list. This link list is
similar to the single linked list that was shown in class except that each node in addition to
having data and nextLink (which was originally called link) now has prevLink.
The class GenDoubleLinkedList needs to have the following:
Internal class ListNode which hasInstance Variables
data of type T
nextLink of type ListNode
prevLink of type ListNode
Constructors
Default
Parameterized
Instance Variables
head of type ListNode which always points to the beginning of the linked list
current of type ListNode which moves around pointing to one of the nodes
Constructor
A default constructor that initializes head to an empty ListNode and sets current to point at the
head.
Methods
goToNext – This moves the current node forward in the list by one node. It doesn’t move
forward if that node is null
goToPrev – This moves the current node backwards in the list by one node. It doesn’t move
backwards if that node is null.
getDataAtCurrent – returns the data at the current node as long as the current isn’t null
setDataAtCurrent – takes in a parameter and sets the data at the current node to that value as long
as current is not null
insertNodeAfterCurrent – creates a new node based on data that is passed in by a parameter and
puts that node after the current position
deleteCurrentNode – removes the current node from the list by resetting the links
showList – prints out the contents of the list line-by-line
inList – returns a true or false value based on whether or not the data passed in via a parameter is
in the list
Solution
package com.quad.generic;
public class GenDoubleLinkedList {
private ListNode head;
private ListNode tail;
private int size;
public int getSize() {
return size;
}
/**
*
*/
public GenDoubleLinkedList() {
this.head = null;
this.size = 0;
}
@SuppressWarnings(\"hiding\")
class ListNode{
private T data;
private ListNode nextLink;
private ListNode prevLink;
/**
*
*/
public ListNode() {
nextLink=null;
prevLink=null;
data=null;
}
/**
* @param data
* @param nextLink
* @param prevLink
*/
public ListNode(T data, ListNode nextLink,
ListNode prevLink) {
super();
this.data = data;
this.nextLink = nextLink;
this.prevLink = prevLink;
}
public T getData() {
return data;
}
public void setData(T data) {
this.data = data;
}
public ListNode getNextLink() {
return nextLink;
}
public void setNextLink(ListNode nextLink) {
this.nextLink = nextLink;
}
public ListNode getPrevLink() {
return prevLink;
}
public void setPrevLink(ListNode prevLink) {
this.prevLink = prevLink;
}
}
public void goToNext(){
ListNode temp = head;
while(temp != null){
temp = temp.getNextLink();
}
}
public void goToPrev() {
ListNode temporary = tail;
while(temporary != null){
temporary = temporary.getPrevLink();
}
}
public T getDataAtCurrent (int index) {
if (index < 0 || index >= size) {
throw new IndexOutOfBoundsException();
} else {
ListNode current = head;
for (int i = 0; i < index; i.
GRID SEARCHING Novel way of Searching 2D Array
The document presents a new algorithm called Grid Search for searching an unsorted 2D array or matrix. Grid Search improves upon linear/sequential search which searches the entire array sequentially. Grid Search divides the array into grids and searches each grid and its surrounding elements, improving time efficiency. An analysis shows Grid Search has a worst-case time complexity of O(n^2/9) while linear search is O(n^2), making Grid Search more efficient as the array size increases. Implementation and testing showed Grid Search takes less time than linear search for all input values.
hello- please dont just copy from other answers- the following is the.docx
hello. please dont just copy from other answers, the following is the code that is already have and can u modified it for the following instructions.
instructions ----A LinkNode structure or class which will have two attributes -
a data attribute, and
a pointer attribute to the next node.
The data attribute of the LinkNode should be a reference/pointer of the Currency class of Lab 2.
Do not make it an inner class or member structure to the SinglyLinkedList class of #2 below.
A SinglyLinkedList class which will be composed of three attributes -
a count attribute,
a LinkNode pointer/reference attribute named as and pointing to the start of the list and
a LinkNode pointer/reference attribute named as and pointing to the end of the list.
Since this is a class, make sure all these attributes are private.
The class and attribute names for the node and linked list are the words in bold in #1 and #2.
For the Linked List, implement the following linked-list behaviors as explained in class -
getters/setters/constructors/destructors, as needed, for the attributes of the class.
createList method in addition to the constructor - this is optional for overloading purposes.
destroyList method in place of or in addition to the destructor - this is optional for overloading purposes,
addCurrency method which takes a Currency object and a node index value as parameters to add the Currency to the list at that index.
removeCurrency method which takes a Currency object as parameter and removes that Currency object from the list and may return a copy of the Currency.
removeCurrency overload method which takes a node index as parameter and removes the Currency object at that index and may return a copy of the Currency.
findCurrency method which takes a Currency object as parameter and returns the node index at which the Currency is found in the list.
getCurrency method which takes an index values as a parameter and returns the Currency object.
printList method which returns a string of all the Currency objects in the list in the order of index, tab spaced.
isListEmpty method which returns if a list is empty or not.
countCurrency method which returns a count of Currency nodes in the list.
Any other methods you think would be useful in your program.
A Stack class derived from the SinglyLinkedList but with no additional attributes and the usual stack methods -
constructor and createStack (optional) methods,
push which takes a Currency object as parameter and adds it to the top of the stack.
pop which takes no parameter and removes and returns the Currency object from the top of the stack.
peek which takes no parameter and returns a copy of the Currency object at the top of the stack.
printStack method which returns a string signifying the contents of the stack from the top to bottom, tab spaced.
destructor and/or destroyStack (optional) methods.
Ensure that the Stack objects do not allow Linked List functions to be used on them.
A Queue class derived from the SinglyLink.
C++ Please write the whole code that is needed for this assignment- wr.docx
Brianca plans to save $5,000, $1,000, and $42,000 a year over the next three years, respectively. How much would you need to deposit in one lump sum today to have the same amount as Brianca three years from now if you both earn 10.9 percent, compounded annually? $36,115 $35,192 $43,282 $41,635 $35,372
.
Unit7 C
- Data structures allow for efficient handling of large volumes of data through logical organization and relationships between data elements. Common linear data structures include arrays, lists, stacks, and queues, while trees and graphs are examples of non-linear data structures.
- Abstract data types (ADTs) define a set of complex data objects and operations that can be performed on those objects without specifying their implementation. Data structures provide a way to implement the logical relationships and operations defined in an ADT.
- Linked lists provide an alternative to arrays for storing data by linking each data element to the next using pointers, rather than requiring contiguous memory locations. This allows for more flexible insertion and deletion compared to arrays.
Recommended
In the class we extensively discussed a node class called IntNode in.pdf
In the class we extensively discussed a node class called IntNode in which each linked list node
contains an integer and each node is linked forward to the next element in the list. Implement a
node class called DoublyIntNode in which each node contains an integer number and each node
is linked not only forward to the next element in the list but also backward to the previous
element in the list. Your implementation of DoublyIntNode should adapt and implement all the
methods of IntNode including the following methods:
Constructor for DoublyIntNode
addNodeAfter, removeNodeAfter
getData, setData
getForeLink, setForeLink
getBackLink, setBackLink
listCopy
listCopyWithTail
listLength
listPart
listPosition
listSearch
IntNode and Node classes:
public class IntNode{
private int data;
private IntNode link;
// methods here
}
public class Node {
private E data;
private Node link;
// methods here
}
Solution
program
#include
using namespace std;
struct list
{
struct list *prev;
int data;
struct list *next;
}
*node = NULL, *first = NULL, *last = NULL, *node1 = NULL, *node2 = NULL;
class Dlist
{
public:
void insert_beg() {
list *addBeg = new list;
cout << \"Enter value for the node:\" << endl;
cin >> addBeg->data;
if(first == NULL) {
addBeg->prev = NULL;
addBeg->next = NULL;
first = addBeg;
last = addBeg;
cout << \"Linked list Created!\" << endl;
}
else {
addBeg->prev = NULL;
first->prev = addBeg;
addBeg->next = first;
first = addBeg;
cout << \"Data Inserted at the beginning of the Linked list!\" << endl;
}
}
void insert_end() {
list *addEnd = new list;
cout << \"Enter value for the node:\" << endl;
cin >> addEnd->data;
if(first == NULL) {
addEnd->prev = NULL;
addEnd->next = NULL;
first = addEnd;
last = addEnd;
cout << \"Linked list Created!\" << endl;
}
else {
addEnd->next = NULL;
last->next = addEnd;
addEnd->prev = last;
last = addEnd;
cout << \"Data Inserted at the end of the Linked list!\" << endl;
}
}
void display() {
node = first;
cout << \"List of data in Linked list in Ascending order!\" << endl;
while(node != NULL) {
cout << node->data << endl;
node = node->next;
}
node = last;
cout << \"List of data in Linked list in Descending order!\" << endl;
while(node != NULL) {
cout << node->data << endl;
node = node->prev;
}
}
void del()
{
int count = 0, number, i;
node = node1 = node2 = first;
for(node = first; node != NULL; node = node->next)
cout << \"Enter value for the node:\" << endl;
count++;
display();
cout << count << \" nodes available here!\" << endl;
cout << \"Enter the node number which you want to delete:\" << endl;
cin >> number;
if(number != 1)
{
if(number < count && number > 0)
{
for(i = 2; i <= number; i++)
node = node->next;
for(i = 2; i <= number-1; i++)
node1 = node1->next;
for(i = 2; i <= number+1; i++)
node2 = node2->next;
node2->prev = node1;
node1->next = node2;
node->prev = NULL;
node->next = NULL;
node = NULL;
}
else if(number == count)
{
node = last;
last = node->prev;
last->next = NULL;
node = NULL;
}
else
cout << \"Invalid node.
This assignment and the next (#5) involve design and development of a.pdf
This assignment and the next (#5) involve design and development of a sequential
non contiguous and dynamic datastructure called LinkedList. A linked list object is
a container consisting of connected ListNode objects. As before, we are not going
to use pre-fabricated classes from the c++ library, but construct the LinkedList
ADT from scratch.
The first step is construction and testing of the ListNode class. A ListNode object
contains a data field and a pointer to the next ListNode object (note the recursive
definition).
#This assignment requires you to
1. Read the Assignment 4 Notes
2. Watch the Assignment 4 Support video
3. Implement the following methods of the ListNode class
-custom constructor
-setters for next pointer and data
4. Implement the insert and remove method in the main program
5. Scan the given template to find the above //TODO and implement the code
needed
//TODO in ListNodecpp.h file
public: ListNode(T idata, ListNode<T> * newNext);
public: void setNext(ListNode<T> * newNext);
public: void setData(T newData);
// TODO in main program
void remove(ListNode<int> * &front,int value)
void insert(ListNode<int> * &front,int value)
# The driver is given ListNodeMain.cpp is given to you that does the following
tests
1. Declares a pointer called front to point to a ListNode of datatype integer
2. Constructs four ListNodes with data 1,2,4 and adds them to form a linked
list.
3. Inserts ListNode with data 3 to the list
4. Removes node 1 and adds it back to test removing and adding the first
element
5. Removes node 3 to test removing a middle node
6. Removes node 4 to test removing the last node
7. Attempt to remove a non existent node
8. Remove all existing nodes to empty the list
9. Insert node 4 and then node 1 to test if insertions preserve order
10.Print the list
Main.cpp
#include <iostream>
#include "ListNodecpp.h"
// REMEMBER each ListNode has two parts : a data field
// and an address field. The address is either null or points to the next node
//in the chain
//Requires: integer value for searching, address of front
//Effects: traverses the list node chain starting from front until the end comparing search value
with listnode getData. Returns the original search value if found, if not adds +1 to indicate not
found
//Modifies: Nothing
int search(ListNode<int> * front, int value);
//Requires: integer value for inserting, address of front
//Effects: creates a new ListNode with value and inserts in proper position (increasing order)in
the chain. If chain is empty, adds to the beginning
//Modifies: front, if node is added at the beginning.
//Also changes the next pointer of the previous node to point to the
//newly inserted list node. the next pointer of the newly inserted pointer
//points to what was the next of the previous node.
//This way both previous and current links are adjusted
//******** NOTE the use of & in passing pointer to front as parameter -
// Why do you think this is needed ?**********
void insert(ListNode<int> * &fr.
Sorted number list implementation with linked listsStep 1 Inspec.pdf
Sorted number list implementation with linked lists
Step 1: Inspect the Node.java file
Inspect the class declaration for a doubly-linked list node in Node.java. Access Node.java by
clicking on the orange arrow next to LabProgram.java at the top of the coding window. The
Node class has three fields:
a double data value,
a reference to the next node, and
a reference to the previous node.
Each field is protected. So code outside of the class must use the provided getter and setter
methods to get or set a field.
Node.java is read only, since no changes are required.
Step 2: Implement the insert() method
A class for a sorted, doubly-linked list is declared in SortedNumberList.java. Implement the
SortedNumberList class's insert() method. The method must create a new node with the
parameter value, then insert the node into the proper sorted position in the linked list. Ex:
Suppose a SortedNumberList's current list is 23 47.25 86, then insert(33.5) is called. A new
node with data value 33.5 is created and inserted between 23 and 47.25, thus preserving the list's
sorted order and yielding: 23 35.5 47.25 86
Step 3: Test in develop mode
Code in main() takes a space-separated list of numbers and inserts each into a SortedNumberList.
The list is displayed after each insertion. Ex: If input is
then output is:
Try various program inputs, ensuring that each outputs a sorted list.
Step 4: Implement the remove() method
Implement the SortedNumberList class's remove() method. The method takes a parameter for the
number to be removed from the list. If the number does not exist in the list, the list is not
changed and false is returned. Otherwise, the first instance of the number is removed from the
list and true is returned.
Uncomment the commented-out part in main() that reads a second input line and removes
numbers from the list. Test in develop mode to ensure that insertion and removal both work
properly, then submit code for grading. Ex: If input is
then output is:
Given templates:
LabProgram.java
import java.util.Scanner;
import java.io.PrintWriter;
public class LabProgram {
// Prints the SortedNumberList's contents, in order from head to tail
public static void printList(SortedNumberList list) {
Node node = list.head;
while (null != node) {
System.out.print(node.getData() + " ");
node = node.getNext();
}
System.out.println();
}
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
String inputLine;
// Read the line of input numbers
inputLine = scnr.nextLine();
// Split on space character
String[] terms = inputLine.split(" ");
// Insert each value and show the sorted list's contents after each insertion
SortedNumberList list = new SortedNumberList();
for (Object term : terms) {
double number = Double.parseDouble(term.toString());
System.out.println("List after inserting " + number + ": ");
list.insert(number);
printList(list);
}
/*
// Read the input line with numbers to remove
inputLine = scnr.nextLine();
terms = inputLine.split(" ".
In java.Write a class called GenDoubleLinkedList which is a generi.pdf
In java.
Write a class called GenDoubleLinkedList which is a generic double linked list. This link list is
similar to the single linked list that was shown in class except that each node in addition to
having data and nextLink (which was originally called link) now has prevLink.
The class GenDoubleLinkedList needs to have the following:
Internal class ListNode which hasInstance Variables
data of type T
nextLink of type ListNode
prevLink of type ListNode
Constructors
Default
Parameterized
Instance Variables
head of type ListNode which always points to the beginning of the linked list
current of type ListNode which moves around pointing to one of the nodes
Constructor
A default constructor that initializes head to an empty ListNode and sets current to point at the
head.
Methods
goToNext – This moves the current node forward in the list by one node. It doesn’t move
forward if that node is null
goToPrev – This moves the current node backwards in the list by one node. It doesn’t move
backwards if that node is null.
getDataAtCurrent – returns the data at the current node as long as the current isn’t null
setDataAtCurrent – takes in a parameter and sets the data at the current node to that value as long
as current is not null
insertNodeAfterCurrent – creates a new node based on data that is passed in by a parameter and
puts that node after the current position
deleteCurrentNode – removes the current node from the list by resetting the links
showList – prints out the contents of the list line-by-line
inList – returns a true or false value based on whether or not the data passed in via a parameter is
in the list
Solution
package com.quad.generic;
public class GenDoubleLinkedList {
private ListNode head;
private ListNode tail;
private int size;
public int getSize() {
return size;
}
/**
*
*/
public GenDoubleLinkedList() {
this.head = null;
this.size = 0;
}
@SuppressWarnings(\"hiding\")
class ListNode{
private T data;
private ListNode nextLink;
private ListNode prevLink;
/**
*
*/
public ListNode() {
nextLink=null;
prevLink=null;
data=null;
}
/**
* @param data
* @param nextLink
* @param prevLink
*/
public ListNode(T data, ListNode nextLink,
ListNode prevLink) {
super();
this.data = data;
this.nextLink = nextLink;
this.prevLink = prevLink;
}
public T getData() {
return data;
}
public void setData(T data) {
this.data = data;
}
public ListNode getNextLink() {
return nextLink;
}
public void setNextLink(ListNode nextLink) {
this.nextLink = nextLink;
}
public ListNode getPrevLink() {
return prevLink;
}
public void setPrevLink(ListNode prevLink) {
this.prevLink = prevLink;
}
}
public void goToNext(){
ListNode temp = head;
while(temp != null){
temp = temp.getNextLink();
}
}
public void goToPrev() {
ListNode temporary = tail;
while(temporary != null){
temporary = temporary.getPrevLink();
}
}
public T getDataAtCurrent (int index) {
if (index < 0 || index >= size) {
throw new IndexOutOfBoundsException();
} else {
ListNode current = head;
for (int i = 0; i < index; i.
GRID SEARCHING Novel way of Searching 2D Array
The document presents a new algorithm called Grid Search for searching an unsorted 2D array or matrix. Grid Search improves upon linear/sequential search which searches the entire array sequentially. Grid Search divides the array into grids and searches each grid and its surrounding elements, improving time efficiency. An analysis shows Grid Search has a worst-case time complexity of O(n^2/9) while linear search is O(n^2), making Grid Search more efficient as the array size increases. Implementation and testing showed Grid Search takes less time than linear search for all input values.
hello- please dont just copy from other answers- the following is the.docx
hello. please dont just copy from other answers, the following is the code that is already have and can u modified it for the following instructions.
instructions ----A LinkNode structure or class which will have two attributes -
a data attribute, and
a pointer attribute to the next node.
The data attribute of the LinkNode should be a reference/pointer of the Currency class of Lab 2.
Do not make it an inner class or member structure to the SinglyLinkedList class of #2 below.
A SinglyLinkedList class which will be composed of three attributes -
a count attribute,
a LinkNode pointer/reference attribute named as and pointing to the start of the list and
a LinkNode pointer/reference attribute named as and pointing to the end of the list.
Since this is a class, make sure all these attributes are private.
The class and attribute names for the node and linked list are the words in bold in #1 and #2.
For the Linked List, implement the following linked-list behaviors as explained in class -
getters/setters/constructors/destructors, as needed, for the attributes of the class.
createList method in addition to the constructor - this is optional for overloading purposes.
destroyList method in place of or in addition to the destructor - this is optional for overloading purposes,
addCurrency method which takes a Currency object and a node index value as parameters to add the Currency to the list at that index.
removeCurrency method which takes a Currency object as parameter and removes that Currency object from the list and may return a copy of the Currency.
removeCurrency overload method which takes a node index as parameter and removes the Currency object at that index and may return a copy of the Currency.
findCurrency method which takes a Currency object as parameter and returns the node index at which the Currency is found in the list.
getCurrency method which takes an index values as a parameter and returns the Currency object.
printList method which returns a string of all the Currency objects in the list in the order of index, tab spaced.
isListEmpty method which returns if a list is empty or not.
countCurrency method which returns a count of Currency nodes in the list.
Any other methods you think would be useful in your program.
A Stack class derived from the SinglyLinkedList but with no additional attributes and the usual stack methods -
constructor and createStack (optional) methods,
push which takes a Currency object as parameter and adds it to the top of the stack.
pop which takes no parameter and removes and returns the Currency object from the top of the stack.
peek which takes no parameter and returns a copy of the Currency object at the top of the stack.
printStack method which returns a string signifying the contents of the stack from the top to bottom, tab spaced.
destructor and/or destroyStack (optional) methods.
Ensure that the Stack objects do not allow Linked List functions to be used on them.
A Queue class derived from the SinglyLink.
C++ Please write the whole code that is needed for this assignment- wr.docx
Brianca plans to save $5,000, $1,000, and $42,000 a year over the next three years, respectively. How much would you need to deposit in one lump sum today to have the same amount as Brianca three years from now if you both earn 10.9 percent, compounded annually? $36,115 $35,192 $43,282 $41,635 $35,372
.
Unit7 C
- Data structures allow for efficient handling of large volumes of data through logical organization and relationships between data elements. Common linear data structures include arrays, lists, stacks, and queues, while trees and graphs are examples of non-linear data structures.
- Abstract data types (ADTs) define a set of complex data objects and operations that can be performed on those objects without specifying their implementation. Data structures provide a way to implement the logical relationships and operations defined in an ADT.
- Linked lists provide an alternative to arrays for storing data by linking each data element to the next using pointers, rather than requiring contiguous memory locations. This allows for more flexible insertion and deletion compared to arrays.
computer notes - Linked list
This document discusses methods of linked lists, including the start, remove, length, and analysis methods. It provides code examples for initializing the start of a linked list and removing a node. It also analyzes the time and memory efficiency of different linked list operations like add, remove, find, and back compared to arrays. Finally, it introduces doubly linked lists, showing how they allow moving forward and backward easily using next and prev pointers in each node.
Merge sort analysis and its real time applications
The document provides an analysis of the merge sort algorithm and its applications in real-time. It begins with introducing sorting and different sorting techniques. Then it describes the merge sort algorithm, explaining the divide, conquer, and combine steps. It analyzes the time complexity of merge sort, showing that it has O(n log n) runtime. Finally, it discusses some real-time applications of merge sort, such as recommending similar products to users on e-commerce websites based on purchase history.
Linked List, Types of Linked LIst, Various Operations, Applications of Linked...
Linked List, Types of Linked LIst,Singly Linked List, Doubly Linked List, Circular Linked List, Various Operations - Create, Display, Search, Insert at end, start, middle, Delete at End, Start, Middle, Applications of Linked List
computer notes - Linked list inside computer memory
The document discusses linked lists and their implementation in C++. It contains the following key points:
1) A linked list stores data non-contiguously in memory by chaining together nodes that contain a data element and a pointer to the next node. The head pointer points to the first node.
2) To create a new node, the Node class constructor is called and passed the data element. This allocates memory and returns a pointer to the new node.
3) To insert a new node, its next pointer is set to the next node of the current node. The current node's next pointer is then set to the new node.
4) The List class manages the linked list by
A new cryptosystem with four levels of encryption and parallel programming
This document proposes a new cryptosystem with four levels of encryption and discusses how parallel programming can improve efficiency. The four encryption levels are: 1) matrix transformation, 2) fractionification, 3) random number addition, and 4) change of radix. Data is first fragmented and each chunk encrypted separately with a unique key. Parallel processing allows each chunk's encryption and decryption to occur simultaneously. The decryption operations reverse the encryption steps to recover the original data.
A NEW CRYPTOSYSTEM WITH FOUR LEVELS OF ENCRYPTION AND PARALLEL PROGRAMMING
Evolution in the communication systems has changed the paradigm of human life on this planet. The growing network facilities for the masses have converted this world to a village (or may be even smaller entity of human accommodation) in a sense that every part of the world is reachable for everyone in almost no time. But this fact is also not an exception for coins having two sides. With increasing use of communication networks the various threats to the privacy, integrity and confidentiality of the data sent over the network are also increasing, demanding the newer and newer security measures to be implied. The ancient techniques of coded messages are imitated in terms of new software environments under the domain of cryptography. The cryptosystems provide a means for the secured transmission of data over an unsecured channel by providing encoding and decoding functionalities. This paper proposes a new cryptosystem based on four levels of encryption. The system is suitable for communication within the trusted groups.
linked list
linked list
singly linked list
insertion in singly linked list
DELETION IN SINGLY LINKED LIST
Searching a singly linked list
Doubly Linked List
insertion from Doubly linked list
DELETION from Doubly LINKED LIST
Searching a doubly linked list
Circular linked list
Array linked list.ppt
This document discusses linked lists and their implementation. It begins with an overview of linked lists and their basic operations like insertion, deletion, and traversal. It then covers the implementation of a linked list using classes for the Node and List, including methods for insertion, deletion, searching, printing, and destroying the list. Examples are provided to demonstrate how to insert and delete nodes at different positions in the linked list. The document concludes with a brief discussion of variations like circular linked lists.
Ch17
This document describes linked lists and operations on linked lists in C++. It discusses the composition of linked lists as series of connected nodes where each node contains data and a pointer to the next node. Common linked list operations like appending, inserting, traversing and displaying nodes are presented with pseudocode algorithms and C++ code implementations. Functions for appending nodes to the end of the list, inserting nodes in the proper sorted position, and traversing the list to display node values are demonstrated through example programs.
Chapter 5 ds
The document outlines the key concepts of linked lists including:
- Linked lists allow for dynamic resizing and efficient insertion/deletion unlike arrays.
- A linked list contains nodes that have a data field and a pointer to the next node.
- Common operations on linked lists include insertion, deletion, searching, and traversing the list.
- The time complexity of these operations depends on whether it's at the head, tail, or interior node.
- Linked lists can be implemented using classes for the node and linked list objects.
There are a couple of new methods that you will be writing for this pr.pdf
There are a couple of new methods that you will be writing for this project. Some are easy, some
are hard. I have provided code that tests most of the methods by calling them from the main
method in the file ListTest.java. The test file will only work when you have done all the
methods. In COMP182LinkedList.java I have provided the signature (definition and input
parameters) for these methods. At this point to make sure you can run the file
(COMP182LinkedList.java that you downloaded from Cavas) I have added template values as
return types of the methods. For example, if the method returns an int then I added return 0 as the
return value. Here are the methods are as follows: Anything getFixst () Anything getLast () void
add (Anything value) void addafter (1nt index, Anyehtng value) Anything set(int index,
Rnything aewvalue) void removeAl1 (Anything vaiue) lastIndex (Anything value)
COMP182IinkedIi ateAnything; elone boolean equala (object in) CoMP182IinkedList
KAnythang? gplat () boolean hascycle () Node reveraeliat () Node oddeventiat () Node
deleteDuplicates () boolean ispalindrome () "For the last two methods, you need to add proper
testing to ListTest Java Method Specifications Here are more details for implementing each of
these methods. You need to complete all the following methods in the COMP182LinkedList
class. You can write the methods in any order you wish, but I suggest you do them in the order
they are listed. In particular, make sure all your methods work for empty lists, lists of different
sizes, etc as you can see from the sample test cases provided in ListTest.java. While grading your
project, we will make changes to these values! Also, make sure that your solutions do not modify
the original lists (unless you are specifically instructed to do so). roid main(String[] args) You
can use this method in the ListTest class to create lists as needed and test each of the methods
listed above. I have provided a few test cases, but you may want to add more to some of the
method tests. Until you get add working, you will need to use addFirst to create lists to test your
other methods. Anything getFirsto This method returns the value stored in the first node an the
list. It should prit an error message and seturn null if the list is empty. Anything getLasto This
method returns the value stored in the last node in the list. It should print an error mesiage and
retuin noll if the list is emipty. void add(Anything value) Thus method adds a nade containing
new yalue to the end of the last. This method returns the value stored in the first node in the list.
It should print an error message and return null if the list is empty. Anything getLast0 This
method returns the value stored in the last node in the list. It should print an error message and
retum null if the list is empty: void add(Anything value) This method adds a node containing
new value to the end of the list. void addAfter(int index, Anything value) This method adds a
node contai.
Add these methods to the code - -Create at least three classes such.pdf
Add these methods to the code :
-Create at least three classes such as:
1. listnode- for data and link, constructors
2. Singlelinkedlist-for method definition
3. linkedlist-for objects
-Insert a node at tail/end in a linked list.
-Delete a node at a particular position in the list
code:
class listnodes{
int data;
listnodes link;
listnodes(){
data=0;
link=null;
}
listnodes(int d,listnodes l){
data=d;
link=l;
}
}
class singlelinkedlist{
public listnodes insertnode(int data,listnodes head){
listnodes newnode=new listnodes(data,null);
newnode.link=head;
head=newnode;
return head;
}
public listnodes insertAtPosition(listnodes head,int data,int position){
listnodes newnode=new listnodes(data,null);//create the newnode
listnodes previous=head;
int count=1;
while(count<=position-1)
{
previous=previous.link;
count++;
}
listnodes current=previous.link;
newnode.link=current;
previous.link=newnode;
return head;
}
public listnodes deletefirst(listnodes head){
listnodes pre=head;
head=head.link;
pre.link=null;
return pre;
}
public listnodes deletelast(listnodes head){
listnodes cur=head;
listnodes previouscur=head;
while(cur.link!=null){
previouscur=cur;
cur=cur.link;
}
previouscur.link=null;
return cur;
}
public int length(listnodes head)
{
listnodes current=head;
int c=0;
while(current!=null)
{
c++;
current=current.link;
}
return c;
}
public boolean find(listnodes head,int searchdata){
listnodes cur=head;
while(cur!=null)
{
if(cur.data==searchdata)
{
return true;
}
cur=cur.link;
}
return false;
}
void display(listnodes head){
listnodes current=head;
while(current.link!=null){
System.out.print(current.data+"-->");
current=current.link;
}
System.out.print(current.data);
}
}
public class LinkedList {
public static void main(String[] args) {
listnodes head=new listnodes(10,null);
singlelinkedlist sl=new singlelinkedlist();
sl.display(head);
System.out.println("\n*****Insert at front*****");
listnodes newhead=sl.insertnode(20, head);
sl.display(newhead);
System.out.println("\n*****Insert at a position*****");
sl.insertAtPosition(newhead, 40, 1);
sl.display(newhead);
}
}.
Week 2 - Data Structures and Algorithms
Linked Lists, Doubly Linked Lists, Circular Linked List
18 January 2019
Data Structures for Data Scientists
#TNIDSA107
Learning spark ch04 - Working with Key/Value Pairs
Learning spark ch04 - Working with Key/Value Pairs
Course : Introduction to Big Data with Apache Spark : http://ouo.io/Mqc8L5
Course : Spark Fundamentals I : http://ouo.io/eiuoV
Course : Functional Programming Principles in Scala : http://ouo.io/rh4vv
Data structure
The document discusses data structures and linked lists. It defines data structures as logical ways of organizing and storing data in computer memory for efficient use. Linked lists are introduced as a linear data structure where elements are connected via pointers and can grow/shrink dynamically. Algorithms for traversing, inserting, and deleting nodes from singly linked lists using both recursion and iteration are provided with pseudocode.
Abstract data types
This document discusses linked lists and their implementation in C++. It defines linked lists as a series of connected nodes where each node contains a data element and a pointer to the next node. The document provides code for Node and List classes that implement basic linked list operations like insertion, deletion, searching and printing. It also covers variations like circular and doubly linked lists and compares the advantages of linked lists over arrays.
Study material ip class 12th
Here are the answers to the Pandas questions:
1. A pandas Series is a one-dimensional labeled array capable of holding any data type (integers, strings, floating point numbers, Python objects, etc.). The axis labels are collectively called index.
2. A DataFrame is a two-dimensional size-mutable, potentially heterogeneous tabular data structure with labeled axes (rows and columns). It is a DataFrame that contains columns, which may be of different value types (numeric, string, boolean etc.).
3. To create an empty DataFrame:
```python
import pandas as pd
df = pd.DataFrame()
```
4. To fill missing values in a DataFrame, we can use fillna()
L3
This document discusses binary search trees (BSTs). It explains that BSTs are binary trees where all nodes in the left subtree of a node have a value less than the node's value, and all nodes in the right subtree have a value greater than or equal to the node's value. The document covers how to add nodes to a BST to maintain this property, how to find a path to a node, and different ways to traverse a BST including recursively and iteratively. It also discusses implementing iterators for BSTs.
Please help solve this in C++ So the program is working fin.pdf
Please help solve this in C++. So the program is working fine but when submitting it, it gives me a
code -11, and I believe the problem is that after inserting the numbers it removes them one by one
until the last in the list, and when it tries to remove the last number in the list that is when it
counters the problem. Below is the full code but you just need to change something in the
SortedNumberList.h file under the bool remove function.
4.18 LAB: Sorted number list implementation with linked lists Step 1: Inspect the Node.h file
Inspect the class declaration for a doubly-linked list node in Node.h. Access Node.h by clicking on
the orange arrow next to main.cpp at the top of the coding window. The Node class has three
member variables: - a double data value, - a pointer to the next node, and - a pointer to the
previous node. Each member variable is protected. So code outside of the class must use the
provided getter and setter member functions to get or set a member variable. Node.h is read only,
since no changes are required. Step 2: Implement the Insert() member function A class for a
sorted, doubly-linked list is declared in SortedNumberList.h. Implement the SortedNumberList
class's Insert() member function. The function must create a new node with the parameter value,
then insert the node into the proper sorted position in the linked list. Ex: Suppose a
SortedNumberList's current list is 2347.2586, then Insert(33.5) is called. A new node with data
value 33.5 is created and inserted between 23 and 47.25, thus preserving the list's sorted order
and yielding: 2335.547.2586Step 3: Test in develop mode Code in main() takes a space-
separated list of numbers and inserts each into a SortedNumberList. The list is displayed after
each insertion. Ex: If input is 77154263.5 then output is: List after inserting 77 : 77 List after
inserting 15 : 1577 List after inserting -42 : -421577 List after inserting 63.5: -421563.577 Try
various program inputs, ensuring that each outputs a sorted list. Step 4: Implement the Remove()
member function Implement the SortedNumberList class's Remove(0 member function. The
function takes a parameter for the number to be removed from the list. If the number does not
exist in the list, the list is not changed and false is returned. Otherwise, the first instance of the
number is removed from the list and true is returned. Uncomment the commented-out part in
main() that reads a second input line and removes numbers from the list. Test in develop mode to
ensure that insertion and removal both work properly, then submit code for grading. Ex: If input is
841972841961 then output is: List after inserting 84: 84 List after inserting 72 : 7284 List after
inserting 19: 1972 84 List after inserting 61: 1961 : 72 8 List after removing 19: 6172 84 List after
removing 84: 6172Current file: main.cpp - // Insert each value and show the sorted List's contents
after each insertion sortedNumberList list; for (auto term : terms) { doubl.
Singly Linked List
Complete PPT About Singly Linked List, why use linked list over array, Different Operations of Linked List (Traversal, Insertion, Deletion)
A Personal Fitness Tracker is a wearable device that tracks your phys.pdf
A Personal Fitness Tracker is a wearable device that tracks your physical activity, calories
burned, heart rate, sleeping patterns, and so on. One common physical activity that most of these
devices track is the number of steps you take each day. A file named steps.txt contains the
number of steps a person has taken each day for a year. There are 365 lines in the file, and each
line contains the number of steps taken during a day. (The first line is the number of steps taken
on January 1 st, the second line is the number of steps taken on January 2 nd, and so forth.) Write
a function averege_steps that takes one argument for the file name and returns the list of average
number of steps (rounded down to integers) taken for each month. Note 1: The data is from a
year that was not a leap year, so February has 28 days. Note 2: Use int(average) to convert float
to integer, eg. int(5246.096774193548) =5246 Sample Input Argument: steps.txt Sample Return:
[5246, 4851, 5777, 5802, 4711, 4792, 5638, 5759, 6114, 5411, 4268, 5138].
38. What is the objective of a FRA (fraud risk assessment) A. To pro.pdf
38. What is the objective of a FRA (fraud risk assessment)? A. To provide an estimate of an
organization's fraud losses B. To help an organization identify what makes it most vulnerable to
fraud C. To establish the guilt or innocence of an employee suspected of committing fraud D. To
assess the design and effectiveness of an organization's internal controls over financial reporting
39. Part of conducting an effective fraud risk assessment involves A. Being able to think like a
fraudster B. Being able to act like a fraudster 40. Proactive fraud auditing comprises the
following steps: A. Understand the business, identify risk exposures, list possible fraud
symptoms, build a fraud program that looks for symptoms for each exposure, analyse results and
investigate identified symptoms. B. Interview suspect, interview colleagues, search public
records, interview former employees or unsuccessful vendors, and check personnel and company
records. c. Compare statement balances from one period to the next, use key ratios, perform
horizontal analvsis and perform vertical analysis. 41. The average organisation loses 5% of its
annual turnover to fraud and corruption. A. True B. False 42. This hacking technique involves
using unsuspecting and gullible users to provide information. A. Impersonation B. Social
engineering C. Scavenging D. Network weaving 43. The most direct way of gaining access to a
computer is to A. Use a Trojan horse B. Use an authorised person's password C. Use a trap door
D. Use a logic bomb 44. Which of the following is NOT a basic element of computer fraud? A.
Input B. Output C. Computer Instructions D. Data clustering.
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computer notes - Linked list
This document discusses methods of linked lists, including the start, remove, length, and analysis methods. It provides code examples for initializing the start of a linked list and removing a node. It also analyzes the time and memory efficiency of different linked list operations like add, remove, find, and back compared to arrays. Finally, it introduces doubly linked lists, showing how they allow moving forward and backward easily using next and prev pointers in each node.
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The document provides an analysis of the merge sort algorithm and its applications in real-time. It begins with introducing sorting and different sorting techniques. Then it describes the merge sort algorithm, explaining the divide, conquer, and combine steps. It analyzes the time complexity of merge sort, showing that it has O(n log n) runtime. Finally, it discusses some real-time applications of merge sort, such as recommending similar products to users on e-commerce websites based on purchase history.
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computer notes - Linked list inside computer memory
The document discusses linked lists and their implementation in C++. It contains the following key points:
1) A linked list stores data non-contiguously in memory by chaining together nodes that contain a data element and a pointer to the next node. The head pointer points to the first node.
2) To create a new node, the Node class constructor is called and passed the data element. This allocates memory and returns a pointer to the new node.
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A new cryptosystem with four levels of encryption and parallel programming
This document proposes a new cryptosystem with four levels of encryption and discusses how parallel programming can improve efficiency. The four encryption levels are: 1) matrix transformation, 2) fractionification, 3) random number addition, and 4) change of radix. Data is first fragmented and each chunk encrypted separately with a unique key. Parallel processing allows each chunk's encryption and decryption to occur simultaneously. The decryption operations reverse the encryption steps to recover the original data.
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Evolution in the communication systems has changed the paradigm of human life on this planet. The growing network facilities for the masses have converted this world to a village (or may be even smaller entity of human accommodation) in a sense that every part of the world is reachable for everyone in almost no time. But this fact is also not an exception for coins having two sides. With increasing use of communication networks the various threats to the privacy, integrity and confidentiality of the data sent over the network are also increasing, demanding the newer and newer security measures to be implied. The ancient techniques of coded messages are imitated in terms of new software environments under the domain of cryptography. The cryptosystems provide a means for the secured transmission of data over an unsecured channel by providing encoding and decoding functionalities. This paper proposes a new cryptosystem based on four levels of encryption. The system is suitable for communication within the trusted groups.
linked list
linked list
singly linked list
insertion in singly linked list
DELETION IN SINGLY LINKED LIST
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Circular linked list
Array linked list.ppt
This document discusses linked lists and their implementation. It begins with an overview of linked lists and their basic operations like insertion, deletion, and traversal. It then covers the implementation of a linked list using classes for the Node and List, including methods for insertion, deletion, searching, printing, and destroying the list. Examples are provided to demonstrate how to insert and delete nodes at different positions in the linked list. The document concludes with a brief discussion of variations like circular linked lists.
Ch17
This document describes linked lists and operations on linked lists in C++. It discusses the composition of linked lists as series of connected nodes where each node contains data and a pointer to the next node. Common linked list operations like appending, inserting, traversing and displaying nodes are presented with pseudocode algorithms and C++ code implementations. Functions for appending nodes to the end of the list, inserting nodes in the proper sorted position, and traversing the list to display node values are demonstrated through example programs.
Chapter 5 ds
The document outlines the key concepts of linked lists including:
- Linked lists allow for dynamic resizing and efficient insertion/deletion unlike arrays.
- A linked list contains nodes that have a data field and a pointer to the next node.
- Common operations on linked lists include insertion, deletion, searching, and traversing the list.
- The time complexity of these operations depends on whether it's at the head, tail, or interior node.
- Linked lists can be implemented using classes for the node and linked list objects.
There are a couple of new methods that you will be writing for this pr.pdf
There are a couple of new methods that you will be writing for this project. Some are easy, some
are hard. I have provided code that tests most of the methods by calling them from the main
method in the file ListTest.java. The test file will only work when you have done all the
methods. In COMP182LinkedList.java I have provided the signature (definition and input
parameters) for these methods. At this point to make sure you can run the file
(COMP182LinkedList.java that you downloaded from Cavas) I have added template values as
return types of the methods. For example, if the method returns an int then I added return 0 as the
return value. Here are the methods are as follows: Anything getFixst () Anything getLast () void
add (Anything value) void addafter (1nt index, Anyehtng value) Anything set(int index,
Rnything aewvalue) void removeAl1 (Anything vaiue) lastIndex (Anything value)
COMP182IinkedIi ateAnything; elone boolean equala (object in) CoMP182IinkedList
KAnythang? gplat () boolean hascycle () Node reveraeliat () Node oddeventiat () Node
deleteDuplicates () boolean ispalindrome () "For the last two methods, you need to add proper
testing to ListTest Java Method Specifications Here are more details for implementing each of
these methods. You need to complete all the following methods in the COMP182LinkedList
class. You can write the methods in any order you wish, but I suggest you do them in the order
they are listed. In particular, make sure all your methods work for empty lists, lists of different
sizes, etc as you can see from the sample test cases provided in ListTest.java. While grading your
project, we will make changes to these values! Also, make sure that your solutions do not modify
the original lists (unless you are specifically instructed to do so). roid main(String[] args) You
can use this method in the ListTest class to create lists as needed and test each of the methods
listed above. I have provided a few test cases, but you may want to add more to some of the
method tests. Until you get add working, you will need to use addFirst to create lists to test your
other methods. Anything getFirsto This method returns the value stored in the first node an the
list. It should prit an error message and seturn null if the list is empty. Anything getLasto This
method returns the value stored in the last node in the list. It should print an error mesiage and
retuin noll if the list is emipty. void add(Anything value) Thus method adds a nade containing
new yalue to the end of the last. This method returns the value stored in the first node in the list.
It should print an error message and return null if the list is empty. Anything getLast0 This
method returns the value stored in the last node in the list. It should print an error message and
retum null if the list is empty: void add(Anything value) This method adds a node containing
new value to the end of the list. void addAfter(int index, Anything value) This method adds a
node contai.
Add these methods to the code - -Create at least three classes such.pdf
Add these methods to the code :
-Create at least three classes such as:
1. listnode- for data and link, constructors
2. Singlelinkedlist-for method definition
3. linkedlist-for objects
-Insert a node at tail/end in a linked list.
-Delete a node at a particular position in the list
code:
class listnodes{
int data;
listnodes link;
listnodes(){
data=0;
link=null;
}
listnodes(int d,listnodes l){
data=d;
link=l;
}
}
class singlelinkedlist{
public listnodes insertnode(int data,listnodes head){
listnodes newnode=new listnodes(data,null);
newnode.link=head;
head=newnode;
return head;
}
public listnodes insertAtPosition(listnodes head,int data,int position){
listnodes newnode=new listnodes(data,null);//create the newnode
listnodes previous=head;
int count=1;
while(count<=position-1)
{
previous=previous.link;
count++;
}
listnodes current=previous.link;
newnode.link=current;
previous.link=newnode;
return head;
}
public listnodes deletefirst(listnodes head){
listnodes pre=head;
head=head.link;
pre.link=null;
return pre;
}
public listnodes deletelast(listnodes head){
listnodes cur=head;
listnodes previouscur=head;
while(cur.link!=null){
previouscur=cur;
cur=cur.link;
}
previouscur.link=null;
return cur;
}
public int length(listnodes head)
{
listnodes current=head;
int c=0;
while(current!=null)
{
c++;
current=current.link;
}
return c;
}
public boolean find(listnodes head,int searchdata){
listnodes cur=head;
while(cur!=null)
{
if(cur.data==searchdata)
{
return true;
}
cur=cur.link;
}
return false;
}
void display(listnodes head){
listnodes current=head;
while(current.link!=null){
System.out.print(current.data+"-->");
current=current.link;
}
System.out.print(current.data);
}
}
public class LinkedList {
public static void main(String[] args) {
listnodes head=new listnodes(10,null);
singlelinkedlist sl=new singlelinkedlist();
sl.display(head);
System.out.println("\n*****Insert at front*****");
listnodes newhead=sl.insertnode(20, head);
sl.display(newhead);
System.out.println("\n*****Insert at a position*****");
sl.insertAtPosition(newhead, 40, 1);
sl.display(newhead);
}
}.
Week 2 - Data Structures and Algorithms
Linked Lists, Doubly Linked Lists, Circular Linked List
18 January 2019
Data Structures for Data Scientists
#TNIDSA107
Learning spark ch04 - Working with Key/Value Pairs
Learning spark ch04 - Working with Key/Value Pairs
Course : Introduction to Big Data with Apache Spark : http://ouo.io/Mqc8L5
Course : Spark Fundamentals I : http://ouo.io/eiuoV
Course : Functional Programming Principles in Scala : http://ouo.io/rh4vv
Data structure
The document discusses data structures and linked lists. It defines data structures as logical ways of organizing and storing data in computer memory for efficient use. Linked lists are introduced as a linear data structure where elements are connected via pointers and can grow/shrink dynamically. Algorithms for traversing, inserting, and deleting nodes from singly linked lists using both recursion and iteration are provided with pseudocode.
Abstract data types
This document discusses linked lists and their implementation in C++. It defines linked lists as a series of connected nodes where each node contains a data element and a pointer to the next node. The document provides code for Node and List classes that implement basic linked list operations like insertion, deletion, searching and printing. It also covers variations like circular and doubly linked lists and compares the advantages of linked lists over arrays.
Study material ip class 12th
Here are the answers to the Pandas questions:
1. A pandas Series is a one-dimensional labeled array capable of holding any data type (integers, strings, floating point numbers, Python objects, etc.). The axis labels are collectively called index.
2. A DataFrame is a two-dimensional size-mutable, potentially heterogeneous tabular data structure with labeled axes (rows and columns). It is a DataFrame that contains columns, which may be of different value types (numeric, string, boolean etc.).
3. To create an empty DataFrame:
```python
import pandas as pd
df = pd.DataFrame()
```
4. To fill missing values in a DataFrame, we can use fillna()
L3
This document discusses binary search trees (BSTs). It explains that BSTs are binary trees where all nodes in the left subtree of a node have a value less than the node's value, and all nodes in the right subtree have a value greater than or equal to the node's value. The document covers how to add nodes to a BST to maintain this property, how to find a path to a node, and different ways to traverse a BST including recursively and iteratively. It also discusses implementing iterators for BSTs.
Please help solve this in C++ So the program is working fin.pdf
Please help solve this in C++. So the program is working fine but when submitting it, it gives me a
code -11, and I believe the problem is that after inserting the numbers it removes them one by one
until the last in the list, and when it tries to remove the last number in the list that is when it
counters the problem. Below is the full code but you just need to change something in the
SortedNumberList.h file under the bool remove function.
4.18 LAB: Sorted number list implementation with linked lists Step 1: Inspect the Node.h file
Inspect the class declaration for a doubly-linked list node in Node.h. Access Node.h by clicking on
the orange arrow next to main.cpp at the top of the coding window. The Node class has three
member variables: - a double data value, - a pointer to the next node, and - a pointer to the
previous node. Each member variable is protected. So code outside of the class must use the
provided getter and setter member functions to get or set a member variable. Node.h is read only,
since no changes are required. Step 2: Implement the Insert() member function A class for a
sorted, doubly-linked list is declared in SortedNumberList.h. Implement the SortedNumberList
class's Insert() member function. The function must create a new node with the parameter value,
then insert the node into the proper sorted position in the linked list. Ex: Suppose a
SortedNumberList's current list is 2347.2586, then Insert(33.5) is called. A new node with data
value 33.5 is created and inserted between 23 and 47.25, thus preserving the list's sorted order
and yielding: 2335.547.2586Step 3: Test in develop mode Code in main() takes a space-
separated list of numbers and inserts each into a SortedNumberList. The list is displayed after
each insertion. Ex: If input is 77154263.5 then output is: List after inserting 77 : 77 List after
inserting 15 : 1577 List after inserting -42 : -421577 List after inserting 63.5: -421563.577 Try
various program inputs, ensuring that each outputs a sorted list. Step 4: Implement the Remove()
member function Implement the SortedNumberList class's Remove(0 member function. The
function takes a parameter for the number to be removed from the list. If the number does not
exist in the list, the list is not changed and false is returned. Otherwise, the first instance of the
number is removed from the list and true is returned. Uncomment the commented-out part in
main() that reads a second input line and removes numbers from the list. Test in develop mode to
ensure that insertion and removal both work properly, then submit code for grading. Ex: If input is
841972841961 then output is: List after inserting 84: 84 List after inserting 72 : 7284 List after
inserting 19: 1972 84 List after inserting 61: 1961 : 72 8 List after removing 19: 6172 84 List after
removing 84: 6172Current file: main.cpp - // Insert each value and show the sorted List's contents
after each insertion sortedNumberList list; for (auto term : terms) { doubl.
Singly Linked List
Complete PPT About Singly Linked List, why use linked list over array, Different Operations of Linked List (Traversal, Insertion, Deletion)
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Linked List, Types of Linked LIst, Various Operations, Applications of Linked...
Linked List, Types of Linked LIst, Various Operations, Applications of Linked...
computer notes - Linked list inside computer memory
computer notes - Linked list inside computer memory
A new cryptosystem with four levels of encryption and parallel programming
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A NEW CRYPTOSYSTEM WITH FOUR LEVELS OF ENCRYPTION AND PARALLEL PROGRAMMING
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There are a couple of new methods that you will be writing for this pr.pdf
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Add these methods to the code - -Create at least three classes such.pdf
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Learning spark ch04 - Working with Key/Value Pairs
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Please help solve this in C++ So the program is working fin.pdf
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A network intrusion detection system (NIDS) analyzes all incoming and.pdf
- 1. A network intrusion detection system (NIDS) analyzes all incoming and outgoing traffic for signs of intrusion. More specifically, a NIDS extracts the payload part of each network packet, and compares it with rules that are called vulnerability signatures. The payload is the actual data part of a network packet. Attackers have adapted their exploit techniques to try to evade the various checks that are performed by a NIDS. Attackers split the attack data into multiple network packets. That way, a single packet payload does not match any vulnerability signatures. On the other hand, defenders have improved the code of NIDS by reassembling fragmented network packets before analyzing them, so that their payloads are merged and analyzed as a single piece of data. NIDS uses a linked list to store network packets in ascending order based on TCP sequence numbers. When a new network packet arrives, the NIDS needs to insert it in the linked list at a position that does not break the ascending order of the nodes. Furthermore, if the linked list already contains a node, i.e. a packet, that has the same TCP sequence number as the new packet, then the NIDS does the following: 1) Removes the existing node from the linked list. 2) Extracts its payload and appends it to the payload of the new packet. 3) Inserts the revised new packet in the linked list at the appropriate position. In this project, we do not implement step 2 given that it is not pertinent to linked lists. This project consists of NIDS code written in Java that organizes network packets into a linked list in ascending order and without duplicates. This project description is accompanied by a zip archive named Code.zip, which contains two Java files, namely intrusionDetectorClass.java and IntNode.java. Students are required to implement the methods of the IntNode class. The intrusionDetectorClass simply uses the methods of the IntNode class to create and maintain the linked list of network packets. Students can verify the correctness of their IntNode class by comparing their output with the following output: Prj1 is running. The (sequence number, data) pairs in the 1inked 1ist are: (13,230185386) Running renovebuplicate() on target 13 The linked list is enpty. Running addNodeInOrder( () on target 13 and data 308329763 The (sequence number, data) pairs in the
- 2. linked list are: (13,308329763) Running renoveDuplicate() on target 14 The (sequence number, data) pairs in the linked 1ist are: (13,3e8329763) Running addwodeInonder() on target 14 and data 248041794 The (sequence number, data) pairs in the linked list are: (13,3e8329763)(14,248941794) Running renoveDuplicate() on target 14 The (sequence number, data) pairs in the 1inked 11st are: (13,308329763) Running addNodeInorder() on target 14 and data 295106305 The (sequence number, data) pairs in the linked 1ist are: (13,308329763) (14, 295106305) Running renovebuplicate() on target 15 The (sequence number, data) pairs in the 1inked 11st are: (13,398329763) (14,2951e63es) Running addNodeInonder () on target 15 and data 325615905 The (sequence number, data) pairs in the Linked 11st are: (13,308329763)(14,2951063e5) (15, 3256159es) Running renoveduplicate() on target 16 The (sequence number, data) pairs in the linked 11st are: (13,368329763) (14, 2951063e5) (15, 325615905) Running adovodeInorder() on target 16 and data 652976466 The (sequence number, data) pairs in the linked list are: (13,393329763) (14,2951e63es) (15,325615905)(16,652976466) whose method is activated, // is removed from the linked list. public void removeNodeAfter( ) { // Implement me. } // Precondition: This instance of the IntNode class exists. // Postcondition: The sequenceNumber of this node is returned. public int getsequenceNumber( ) { // Implement me. } // Precondition: This instance of the IntNode class exists. // Postcondition: The link of this node is returned. public IntNode getLink( ) { // Implement me. } // Precondition: The linked list contains at least one element. // Postcondition: The (sequence number, data) pairs of each node in the linked list, starting with the head, // are displayed on the monitor. public void displayNodeData(IntNode head) { // Implement me. } // Precondition: The head of the linked list is different than null, and its sequenceNumber is different than target. // Postcondition: The link to the specific node, which comes before the node whose sequenceNumber is equal to target, // is returned. If the linked list does not contain a ponde with sanuanceNumber // Precondition: The linked list contains at least one element. // Postcondition: The (sequence number, data) pairs of each node in the linked list, starting with the head, // are displayed on the monitor. public void displayNodeData(IntNode head) { // Implement me. } // Precondition: The head of the linked list is different than null, and its sequenceNumber is different than target. // Postcondition: The link to the specific node, which comes before the node whose sequenceNumber is equal to target, // is returned. If the linked list does not contain a node with sequenceNumber equal to target, then null is returned. public IntNode findPrevious (IntNode head, int target) } // Implement me. { // Implement me. } // Precondition: The head of the linked list is different than null, and its sequenceNumber is smaller than target. // Postcondition: The link to the specific node, which comes before the node that is the first in the linked list // to
- 3. have a sequenceNumber greater than target, is returned. // If no such node is found, the link to the last node in the linked list is returned. public IntNode locatePredecessor(IntNode head, int target) { // Implement me. } } Running removeDuplicate() on target 17 The (sequence number, data) pairs in the linked list are: (13,308329763)(14,295166305)(15,325615905)(16,652976466) Running addNodeInOrder() on target 17 and data 847897267 The (sequence number, data) pairs in the 1 inked 1 ist are: (13,308329763)(14,295106305)(15,325615905)(16,652976466)(17,847897267) Running removeDuplicate() on target 17 The (sequence number, data) pairs in the linked 1ist are: (13,308329763)(14,295106305)(15,325615905)(16,652976466) Running addNodeInOrder() on target 17 and data 927847798 The (sequence number, data) pairs in the linked 1 ist are: (13,308329763)(14,295106305)(15,325615905)(16,652976466)(17,927847798) End of run. package library; public class IntNode { private int sequenceNumber; private int data; private IntNode link; // Precondition: // Postcondition: All instance variables of the IntNode class are initialized in order. public IntNode(int initialsequenceNumber, int initialdata, IntNode initiallink) { // Implement me. } // Precondition: This instance of the IntNode class exists. // In other words, the object whose method is activated exists as a node in the linked list. // Postcondition: A new node with attributes item and data is created. Item serves as sequenceNumber. // The new node is added to the linked list at a position that comes immediately after the node whose method is activated. public void addNodeAfter(int item, int data) { // Implement me. } // Precondition: This instance of the IntNode class exists. // In other words, the object whose method is activated exists as a node in the linked list. // Postcondition: The specific node, which comes immediately after the node whose method is activated,