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Here's a breakdown of the code:
par and sz arrays are used to represent the parent and size of each node in the DSU.
The init function initializes the DSU, setting each node as its own parent and initializing the size of each component to 1.
The findParent function recursively finds the parent of a node and performs path compression to optimize future queries.
The Union function merges two components by updating the parent and size information.
In the main function, the code reads the number of people n and the number of queries q. It then initializes the DSU.
The loop processes each query. If the query is of type 'Q', it reads an index and prints the size of the component containing that index. If the query is of type 'U', it reads two indices and performs a union operation.
The time complexity of this solution is O(q * α(n)), where α is the inverse Ackermann function. The inverse Ackermann function is very slow-growing and practically constant, making the DSU operations almost linear in practice.
Note: The getchar() before reading the query type is used to consume the newline character left in the input buffer from the previous input operation. This ensures correct parsing of the subsequent input.
Below is a simple example of filing a complaint against an AT&T store employee using JavaScript. This example assumes a hypothetical API endpoint for filing complaints.
javascript Copy code const axios = require('axios');
function fileComplaint(customerName, employeeName, complaintDetails) { // Construct the complaint message const complaintMessage =
Customer:
{employeeName}\nDetails: ${complaintDetails}
;// Send the complaint to AT&T using a hypothetical API or endpoint axios.post('https://example.com/att/complaints', { complaint: complaintMessage }) .then(response => { console.log('Complaint filed successfully.'); }) .catch(error => { console.error(
Error filing complaint. Status Code: ${error.response.status}
); }); }// Example usage const customerName = 'John Doe'; const employeeName = 'EmployeeXYZ'; const complaintDetails = 'The employee provided incorrect information about the plan specifications.';
fileComplaint(customerName, employeeName, complaintDetails); In this JavaScript example, we use the axios library for making HTTP requests. The fileComplaint function takes customer name, employee name, and complaint details as parameters, constructs a complaint message, and sends it to the specified endpoint. The function then logs the success or error message based on the response.
Remember to replace the URL ('https://example.com/att/complaints') with the actual endpoint or contact method provided by AT&T for filing complaints. Additionally, ensure you have the axios library installed by running npm install axios if you don't have it already.
This includes the basic HTML tags such as , , , , , , ,
,
, and . Keep in mind that this is a minimal example, and you can expand and customize it based on your specific needs,
html Copy code Clean HTML Solution Blog body { font-family: 'Arial', sans-serif; line-height: 1.6; margin: 20px; }
Clean HTML Solution Blog
Feel free to modify the content and styles according to your preferences. This is a starting point, and you can expand it with additional sections, features, and styling based on your blog's requirements.
Clean Dart Solutions
Dart is a versatile programming language primarily used for building web and mobile applications. Here are some clean Dart language solutions for common tasks:
Hello World:
dart Copy code void main() { print('Hello, World!'); } Variables and Data Types:
dart Copy code int age = 25; double height = 5.9; String name = 'John'; bool isStudent = true; Conditional Statements (if-else):
dart Copy code if (age >= 18) { print('You are an adult.'); } else { print('You are a minor.'); } Loops (for loop):
dart Copy code for (int i = 1; i <= 5; i++) { print('Count: $i'); } Lists:
dart Copy code List fruits = ['apple', 'banana', 'cherry']; print(fruits[0]); // Output: apple Functions:
dart Copy code int add(int a, int b) { return a + b; }
void main() { int result = add(5, 3); print('Sum: $result'); // Output: Sum: 8 } Classes and Objects:
dart Copy code class Person { String name; int age;
Person(this.name, this.age);
void introduce() { print('My name is age years old.'); } }
void main() { Person person = Person('Alice', 30); person.introduce(); // Output: My name is Alice, and I am 30 years old. } Exception Handling (try-catch):
dart Copy code try { var result = 10 ~/ 0; // Division by zero print('Result: e'); // Output: Error: IntegerDivisionByZeroException } Async/Await (for asynchronous programming):
dart Copy code Future fetchData() async { await Future.delayed(Duration(seconds: 2)); print('Data fetched!'); }
void main() { print('Fetching data...'); fetchData().then((_) { print('Data fetched successfully.'); }); } These are some basic examples to get you started with Dart. Depending on your specific project or task, you can build more complex solutions and explore the Dart documentation for further details on its capabilities and libraries. Remember Your internet must be good for practice.
Clean Javascript Solutions
here's a clean JavaScript solution for a common programming problem that you can post on HackerRank. This example solves the "Sum of Two Numbers" problem, where you need to find and return the sum of two numbers:
javascript Copy code function sumOfTwoNumbers(num1, num2) { // Check if the input is valid if (typeof num1 !== 'number' || typeof num2 !== 'number') { return "Invalid input. Please enter two numbers."; }
// Calculate the sum of the two numbers const sum = num1 + num2;
// Return the result return sum; }
// Example usage: const number1 = 5; const number2 = 7; const result = sumOfTwoNumbers(number1, number2); console.log("Sum:", result); This code defines a function sumOfTwoNumbers that takes two numbers as input, checks if the input is valid, calculates the sum, and returns the result. It also includes an example of how to use the function.
You can post this solution on HackerRank or adapt it to solve other programming challenges as needed. Make sure to read the problem statement carefully on HackerRank and customize the code accordingly.