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Sorting algorithm 5: Quick Sort

Quick Sort is a divide and conquer technique.
Step 1: The first step is to get a pivot element.
Step 2: Once we get the pivot element, then we create 2 half such that, the elements left to the pivot element are lesser than pivot element.
In this example, we shall select the lowest element as pivot element.
By doing the above 2 operations, we make sure that all the elements to the left of pivot element are less and elements to right of pivot are greater.
Implementation of Quick Sort in C
In the worst case, the time taken will be O(n^2).
Steps to select pivot element.
we swap the elements in their respective positions.
Similarly, while comparing with the right pointer, we check if the element is greater than the pivot element. If the element is less than the pivot element, we swap the elements.

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Javacodegeeks

239

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Invoke a GoLang Function from Java

Go is a programming language known for its simplicity, concurrency support, and performance, used in backend systems, cloud-native applications, and microservices.
To invoke a GoLang function from Java, you need Java Development Kit (JDK), Go compiler, Java Native Interface (JNI), cgo, javac, and java.
The process involves writing a Go function, compiling it into a shared library, and using JNI to invoke it from Java.
The shared library can then be loaded by other programs. The output file contains the compiled Go code.
A Java program can be created to load the shared library and invoke the Go function.
Go structs can be mapped using JNI in Java via C-style structure. This approach requires serialization and deserialization between Go and Java.
The System.loadLibrary method loads the shared library. The native keyword is used to declare a method that is implemented in native code (in this case, Go).
The parsed data is then printed to the console, showcasing how complex data types can be passed between Go and Java.
Integrating Go and Java through shared libraries allows developers to use the strengths of both languages: Go’s performance and simplicity combined with Java’s versatility.

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Sdtimes

126

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GitHub Copilot Free launches to expand reach of platform to all developers

GitHub has announced a free tier of GitHub Copilot to expand the platform’s reach to more developers.
The free tier provides access to 2,000 code completions and 50 chat messages per month, integrated into VS Code with a choice of models.
Features included in the free tier are debugging help, code explanations, inline chat, commit message generation, and more.
Advanced features like knowledge base attachment, code review guidelines, and management, security, and governance features are not available in the free tier.

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Prodevelopertutorial

347

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Sorting algorithm 4: Merge Sort

Merge Sort is a divide-and-conquer based algorithm.
It sorts an array by dividing it into smaller halves and merging them.
It follows three steps - Divide, Conquer and Combine.
Divide the array into half recursively till we get only single elements.
Sort the left and right part of the array recursively.
Combine the left and right part into single sorted array.
The time complexity of merge sort is O(n log n).
A C implementation of merge sort with input/output example is provided.
The merge sorted array function merges two sorted arrays.
This summarizes the various steps to perform Merge Sort algorithm.

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Prodevelopertutorial

298

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Sorting algorithm 3: Insertion Sort

Insertion Sort is a sorting algorithm.
It involves iterating through the array and inserting elements in their correct positions.
The algorithm has been implemented in C with a sample program.
The time complexity of Insertion Sort is O(n^2).

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Prodevelopertutorial

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Sorting algorithm 2: Selection Sort

Selection sort is a sorting technique where the smallest element is taken from the array and placed at the first, same steps are continued for rest of the elements.
The steps for performing selection sort are as follows: 1. Get the smallest element from the array list. 2. Exchange it with the first position. 3. Obtain the second smallest element and exchange it with the second position. 4. Continue the steps till all the array elements are sorted.
The time complexity of selection sort is O(n^2), where n is the number of elements in the array. It has the same time complexity for best case, worst case, and average case.
The implementation of selection sort in C involves using two nested loops to iterate through the array and swap elements if necessary. The sorted array is printed as the output.

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Medium

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Software Quality is Not Negotiable

Cutting corners in software development may seem like a small compromise for meeting deadlines, but it often leads to future problems.
Skipping unit tests, setting up proper deployment pipelines, and neglecting code quality can come back to haunt developers.
The lack of tests makes it difficult to ensure changes won't break anything else, leading to manual verification and guesswork.
Maintaining software quality is crucial for avoiding future bugs and issues that can be costly and time-consuming to fix.

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Medium

162

Day 23: Recommendation Systems

Collaborative filtering and content-based filtering are two types of recommendation systems that rely on user-item interactions.
Challenges include cold start problems and scalability for collaborative filtering, while content-based filtering may face over-specialization issues.
Hybrid recommendation systems combine multiple techniques to overcome limitations, such as combining collaborative filtering and content-based filtering.
The article also provides resources and links related to building recommendation systems.

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Medium

370

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Supercharging Excel with VBA: The first steps

Excel is an essential tool for managing budgets, analyzing data, and streamlining reports.
Most users are unaware of the power of VBA (Visual Basic for Applications) hidden in Excel.
Learning VBA can help automate workflows, clean data, and save time.
Access the VBA editor by pressing Alt + F11 to get started with writing VBA code.

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Dev

239

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🤯GitHub's Copilot Now Available for Free to Users

GitHub has launched a free version of Copilot, its AI-powered coding assistant.
The free tier includes real-time code suggestions and basic context awareness.
Premium features like Copilot Chat and security vulnerability detection are not available in the free tier.
GitHub aims to empower developers of all skill levels and make AI tools more accessible.

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Johndcook

158

Interval arithmetic and fixed points

Interval arithmetic is a way to get exact results of a sort from floating point arithmetic.
Cosine iteration involves using interval arithmetic to illustrate the convergence of iterated cosines.
The cosine of any real number lies in the interval [-1, 1].
Numerical interval arithmetic involves computing intervals that contain the image of an interval under a function.

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Dev

130

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Day 21- String Functions

The program checks whether a given key is a title or not using the istitle() function.
The program replaces occurrences of a word with another word using the replace() function.
The concept of objects, memory space, and immutability of strings in Python is explained.
The difference between rfind() and rindex() methods in Python is discussed.

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Dev

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Let's Create Google Gemini 2.0 Using JavaScript | Gemini AI Chatbot Clone

Gemini is a generative artificial intelligence chatbot developed by Google.
This tutorial provides a step-by-step guide on how to recreate the innovative features of Google Gemini using HTML, CSS, and JavaScript.
It focuses on building a dynamic web application inspired by Google Gemini, covering core functionalities and design elements.
Whether you're a beginner or an experienced developer, this tutorial offers valuable insights into building advanced web applications.

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Dev

401

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🛠️ Writing Reliable Code from the Ground Up !

Test Driven Development (TDD) is a methodology that flips traditional software development on its head.
TDD introduces a radical yet powerful approach: write tests first, then write the code to pass those tests.
TDD follows a simple yet powerful cycle: Red, Green, Refactor.
TDD's benefits include superior code quality, early bug detection, confidence in refactoring, clear requirements and design, and collaborative documentation.
TDD aims to improve the quality of the code from the ground up by emphasizing clean, modular, and maintainable code.
TDD detects bugs early, not when the code goes to production, reducing debugging time.
TDD improves code reliability with its comprehensive test suite acting as a safety net and continuous code improvement.
TDD is universal and can be applied to any project of any size or complexity and any technology stack or programming language.
Behaviour Driven Development (BDD) extends TDD's principles and focuses on behavior and business value.
Recommended TDD resources include ‘Test Driven Development by TestDriven.io’, ‘Introduction to TDD by BrowserStack’ and ‘Jest Documentation’.

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Prodevelopertutorial

383

Sorting algorithm 1: Bubble sort

Bubble sort is a sorting algorithm which swaps two elements if the next element is greater in value.
Bubble sort involves two loops, an outer and an inner one.
In bubble sort, the largest element is sorted and brought to the end of the list in every iteration.
An implementation of bubble sort in C is provided to sort an array by comparing and swapping elements.
Bubble sort has a time complexity of O(n^2) as it always compares two elements in each pass.
Bubble sort sorts an array by making comparisons between two adjacent values and swapping them whenever required.
The sorted array can be displayed with the 'print_array' function.
Bubble sort is commonly used in small-scale applications and not as much in larger real-time applications.
The program saves processing time by breaking out of the loop if no swapping is done after the third pass.
Bubble sort is not considered an efficient sorting algorithm for large arrays.

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