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Data structure tutorial 4: Doubly Linked List [DLL]

Doubly Linked List is a special data structure, which is a collection of zero or more nodes.
Each node is made up of 3 parts, prev_link + data + next_link.
In a Doubly Linked List, we need to store the address information for the previous node and the next node.
The DLL operations include inserting an element at the rear, deleting an element with a given key value, searching for an element and displaying all the data.
The implementation of DLL includes defining structures for nodes, head pointer, and the 4 defined operations.
The C++ code presented inserts, deletes, searches and displays elements in a DLL.
When inserting elements at the rear, we check if head node is NULL.
If the head element is not NULL, we use the next pointer to move to the end of the list to add the element.
To delete an element we move the pointer temp to the element with that key, then update pointers for adjacent nodes before deleting the temp node.
To search an element we move the temp pointer to the head and check if the data is the same as key.

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Logrocket

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What does a fractional product manager do?

Fractional product managers(FPM) are part-time, contract-based product management professionals who work with organizations on a limited and flexible basis.
FPMs provide expertise and experience in areas like product strategy, product development, and operations (product DevOps).
Companies hire FPMs for cost-effectiveness, flexibility, and immediate impact, access to expertise and experience, and to address the growing complexity of product management.
FPMs differ from product consultants in engagement models, focus, duration, and deliverables.
Challenges faced by FPMs include limited organizational authority, income variability, client acquisition, and managing multiple clients.
Transitioning to a fractional product management role requires credibility, a good network, and a skill set to find and attract new clients.
FPMs often charge high hourly rates between $100 and $200 per hour.
Focus on setting clear priorities, reduce meeting loads, build strong relationships, communicate clearly, and continuously improve to be a successful FPM.
Fractional product managers are strategic part-time project managers who help companies with specialized skills and vast experience.
It’s especially valuable for startups and scaling companies that need specialized experience but aren’t willing to pay a full-time hire.

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Medium

411

Autonomys network

Autonomys Network is focused on creating a decentralized environment for AI agents to function autonomously and collaboratively.
AI agents within Autonomys Network operate independently or interact with other agents to achieve complex goals.
The ecosystem of Autonomys Network is built on distributed nodes, leveraging blockchain and AI for decentralized data processing, storage, and execution.
Autonomys Network aims to address challenges such as data centralization and AI governance, offering a transparent and scalable solution.

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Medium

366

What is c++?

C++ is one of the world's most popular programming languages used in operating systems, Graphical User Interfaces, and embedded systems.
C++ is an object-oriented programming language which provides clear structure to programs and allows code reusability, reducing development costs.
C++ is portable and can be utilized for developing applications that can be adapted to multiple platforms.
C++ is closely related to C, C#, and Java, making it easy for programmers to switch between these languages.

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Dev

295

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Boost Your Application's Performance with Redux RTK Query 🚀

Redux RTK Query is a powerful tool for managing data fetching and caching in React applications.
Key features include automatic caching, reduced boilerplate, optimistic updates, and efficient refetching.
Queries are used for reading or fetching data, while mutations are used for creating, updating, or deleting data.
RTK Query's built-in caching mechanism improves application performance by reducing API calls and minimizing component re-renders.

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Prodevelopertutorial

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Data structure tutorial 3: Singly Linked List

Singly Linked list is a special data structure, which is a collection of zero or more nodes.
The node is a combination of data + link.
A Singly Linked List is a collection of zero or more nodes where each node has 2 or more elements.
Deleting the element from the front end is simple.
To display all the node data, take a temp node, and iterate through all the elements present in the list.
Below is the code for SLL where the element is inserted at front end and deleted from front end.
The output from the program will display the inserted elements, deleted element and the final list.
There are different types of Linked Lists like Singly Linked List, Doubly Linked List, Circular Singly Linked List and Circular Doubly Lined List.
This article focuses on Single Linked List implementation using basic operations like insert, delete and display.
It is a useful data structure for storing and manipulating data in a sequential manner.

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Prodevelopertutorial

Data structure tutorial 2: Stack Implementation using Linked List

In this chapter, we learn about stack implementation using a linked list.
Topics covered include introduction to linked list, inserting elements into a stack using a linked list, implementation of stack using a linked list, and the output of the program.
The chapter starts with an introduction to a simple linked list structure.
The chapter explores inserting elements into a stack using a linked list in four steps: allocating memory for a new node, updating the data field with the value, pointing the 'next' pointer of the new node to the head pointer, and returning the new node.

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Medium

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What are the limitations of Selenium for automation testing?

Selenium is limited to testing web applications and cannot be used for desktop or mobile applications.
It does not have built-in reporting features, requiring integration with third-party libraries.
Selenium has a steep learning curve, especially for beginners with limited coding experience.
It lacks a built-in object repository and requires manual creation and maintenance.

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Dev

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How to Build a Face Mask Detection System: A Practical Guide for Beginners

Face mask detection has become an essential tool in ensuring public safety during the COVID-19 pandemic.
In this guide, you will learn how to build a face mask detection system using Python, OpenCV, and a pre-trained deep learning model.
The process involves loading and preprocessing the dataset, training the model, and performing real-time detection using OpenCV.
Building a face mask detection system is a great way to learn about computer vision and deep learning.

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Medium

299

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Dogecoin may surge 85% as whales hoard DOGE, suggests fractal pattern

Dogecoin may surge 85% as whales hoard DOGE, suggests fractal pattern
Dogecoin has been repeating its bullish 2021 fractal.
Elon Musk's influence on Dogecoin's movements is significant.
The potential rally of Dogecoin is exciting but unpredictable.

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Dev

375

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Unveiling the Magic of CSS Pseudo-Classes in Frontend Development

CSS pseudo-classes are selectors that target specific states or positions of HTML elements.
Commonly used pseudo-classes include :hover for adding interactivity and :active for click feedback.
Advanced pseudo-classes like :nth-child() and :not() are useful for selecting specific children and excluding elements, respectively.
Overall, CSS pseudo-classes enhance user experience by allowing frontend developers to add interactivity and dynamic styling to web applications.

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Medium

111

South Korea’s president reportedly defies summons in martial law inquiry

President Yoon of South Korea declared martial law on December 3, claiming that the opposing Democratic Party was engaging in anti-state activities that obstructed governance.
However, martial law was reversed within six hours, drawing severe resistance from lawmakers and the judiciary and resulting in a criminal probe against Yoon and top government officials.
Lawmakers in South Korea voted to impeach Yoon on December 14, and the Constitutional Court will have up to 180 days to decide whether to restore him to power or remove him.
Yoon was issued a summons to appear for questioning on December 15, but he failed to comply, and prosecutors may take further legal actions.
Opposition leader Lee Jae-myung proposed a special council to foster cooperation between the government and parliament to stabilize the country and restore public trust.
Acting President Han Duck-soo initiated responses to resolve the crisis, including strengthening the military's defensive position against North Korea and easing the economy's impact.
Public opinion in South Korea is starkly divided, with Yoon's supporters believing that his martial law declaration was justified and critics viewing it as an unprecedented overreach of presidential power and an attack on democracy.
The outcome of this crisis will not only have far-reaching implications for South Korea's domestic politics but also for its position internationally.
As the nation stumbles through this difficult time, the resilience of the democratic processes will be closely watched and monitored by both allies and adversaries.

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Dev

264

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Can React v19 replace React Query(Tanstack)?

React 19 introduces new hooks and features for data handling, performance improvement, and better developer experience.
React 19 hooks like useActionState, useFormStatus, and useOptimistic simplify common patterns in React development.
React Query (Tanstack) provides advanced caching, automatic background synchronization, query invalidations, and error handling for complex scenarios.
For simpler use cases, React v19 hooks can be used, while Tanstack Query is recommended for larger applications with complex data tasks.

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Medium

299

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Kingfisher Facts: The River Jewel

Kingfishers are small birds adapted to aquatic life, mainly found near rivers and streams.
They have a sharp beak and metallic sheen on their body, with feathers that glow in certain colors under light.
They primarily feed on fish and other aquatic insects and are skilled hunters.
Kingfishers have specialized beaks for diving and catching prey, and they swallow fish whole.

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TechCrunch

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GitHub launches a free version of its Copilot

GitHub announces a free version of its Copilot code completion/AI pair programming tool.
The free version will be integrated with Microsoft's VS Code editor.
Developers on the free plan will have limitations, such as 2,000 code completions per month.
GitHub aims to enable a billion users to become developers worldwide with the free Copilot.

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