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Minimum Spanning Tree tutorial 1. Introduction to minimum spanning tree

In this chapter we shall learn about below topics:
1.1 Introduction to spanning tree
1.2 What is minimum spanning tree?
1.3 Usage of minimum spanning tree.

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Prodevelopertutorial

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Introduction to Greedy Technique with example

Greedy method is a simple technique that makes decisions based on current information without worrying about future outcomes.
It may not always provide the optimal solution.
For a problem to be solved by greedy approach, it should satisfy the Greedy Choice Property and Optimal Sub Problem Property.
Examples of problems that can be solved using greedy approach include finding shortest path, minimum spanning tree, job sequencing, and fractional knapsack.

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Prodevelopertutorial

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Introduction to Backtracking Approach with example

Backtracking is a problem solving technique for yes/no decision based problems.
It involves making a series of decisions and backtracking when encountering a wrong result.
A common example to understand backtracking is the 'ball in a maze' problem.
This problem involves moving a ball from a start position to the end of a maze, making decisions at each step.

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Dev

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Embracing margin-inline-start for Better RTL Support in Web Design

Embracing margin-inline-start and other logical CSS properties improves flexibility and consistency in designing for left-to-right (LTR) and right-to-left (RTL) languages.
Logical properties, such as margin-inline-start and margin-inline-end, are direction-agnostic and adapt based on the writing mode of the document or element.
Benefits of using margin-inline-start include seamless RTL support, cleaner code without direction-specific styles, and future-proof scalability.
Logical properties like margin-inline-start are well-supported in modern browsers and ensure more inclusive and adaptable designs for a global audience.

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Dev

126

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Functional Programming with fp-ts in Node.js

Functional programming (FP) has gained popularity for its composability, testability, and robustness.
This article explores fp-ts concepts like Option, Either, Task, Reader, and ReaderTaskEither.
We’ll build a basic CRUD app using fp-ts, pg (PostgreSQL client), and Express.js to see how these abstractions shine in real-world applications.
Setup TypeScript, Project Structure, Database Setup, Defining Models and Validation, Custom Error Handling, Service Layer, CRUD Operations and Express API have been implemented to build the CRUD app.
Containerization using Docker and Docker Compose and Writing tests using Jest have also been demonstrated.
Using functional programming patterns makes your code more predictable and reliable, especially when handling asynchronous workflows.

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Medium

157

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A 5-Star Puzzle Full of Plot Twists

In a puzzle scenario where 99 people are told they will die, the trick to surviving is to exploit the rules of the question.
Coordinating with the other participants, the possible solution is to form a circle and work together to ensure survival.

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Medium

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INTRODUCTION TO NODEJS

Node.js lets us use JavaScript for powerful things like websites and games and even robots.
Node.js plays an important role in building responsive and functional web applications that work on the backend server.
It uses frameworks like express and ejs to launch the server and host the website or web application.
Node.js is a great language to learn for backend development and understanding the processing behind the scenes.

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Dev

187

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Reverse a string in JavaScript without using reverse()

The JavaScript program reverses a string without using the reverse() method.
It defines a function named reverseString that takes a string as input.
The function iterates through the string from the last character to the first and appends each character to a reversed string.
Finally, the reversed string is returned as the result.

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Dev

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# Key New Features in React Router 7: Embracing the Remix Future

React Router 7 introduces powerful features from Remix and essential improvements.
Enhanced data loading with deferred components allows streaming data progressively.
Built-in server-side rendering optimizations improve performance for large applications.
Improved TypeScript integration emphasizes enhanced type safety.
Client-side data mutations provide a streamlined way to handle client-side actions.
Significant performance improvements through enhanced route prefetching.
SPA mode can be turned on or off as per requirements.
React Router 7 and Vite together bring Remix-like features to any React application.

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Dev

388

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My First ML Pipeline: A Journey into Machine Learning Simplification

The author shares their experience of building their first machine learning (ML) pipeline.
The pipeline helps in structuring and simplifying the ML workflow, reducing complexity and ensuring consistency.
The pipeline consists of steps such as data preparation, standard scaling, and logistic regression.
The author learned the importance of modularity, reproducibility, and efficiency in ML pipelines.

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Medium

287

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The Counterintuitive Truth About the Single Responsibility Principle

The Single Responsibility Principle (SRP) is often misunderstood as meaning that every part of a program should do only one thing.
However, the SRP is about a larger concept than just individual functions.
It can be compared to organizing a room, where each drawer holds one type of clothing, similar to functions.
The SRP states that the entire room should be the responsibility of one person and should not contain items belonging to others.

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Prodevelopertutorial

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Introduction to Dynamic Programming with example

Dynamic programming is a method of solving problems with overlapping sub-problems and optimal substructures that can be optimised with the help of storing previously calculated solutions.
There are two approaches: top-down approach (memoization) and bottom-up approach (tabular method).
Dynamic programming can significantly reduce time complexity.
Memoization approach is a top-down approach where previously calculated solutions are stored in an array to eliminate redundancy.
The array is initialised with -1 and the values are filled for future use as required.
Tabular method is a bottom-up approach for dynamic programming where the solutions are iteratively calculated and stored in an array.
The array is filled from lower index to higher index in this case.
Memoization and tabular method have been explained using examples of generating Fibonacci numbers.
C++ programs for finding Fibonacci numbers using memoization and tabular method have been provided.
Dynamic programming is a powerful technique for optimisation of overlapping sub-problems.

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Prodevelopertutorial

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Introduction to Recursion with stack frame and recursion tree

The article explains recursion function and its implementation using a simple program in C language.
The article discusses the changes in the stack frame when using a recursion function and helps in understanding recursion tree with an example of finding the nth Fibonacci number.
It explains how local c variables are stored in the stack when a function is called with its activation record and the changes that occur when recursive calls are made.
The program uses function fun to demonstrate how the stack frame gets affected when a recursion function is used.
The recursion tree is a visual representation of recursive calls that helps in understanding the complexity of a function with multiple recursive calls.
The article also describes the pseudo code to find the nth Fibonacci number and its implementation with a recursion tree.
The article concludes with the importance of recursion in dynamic programming and backtracking and its role in getting the desired results.
Understanding recursion is important for any programmer and helps in writing efficient code with minimal errors.
Recursion can be used to solve complex problems easily by dividing the problem into simple sub-problems.
Recursion helps in developing code that is reusable and helps in reducing the complexity of code by breaking it into smaller functions.

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Prodevelopertutorial

Introduction to Brute force approach with example

Introduction to brute force approach
Understanding Brute force approach with an example
C++ program to perform brute force approach on string search
Output

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Prodevelopertutorial

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Graph data structure tutorial 10. Hamiltonian Graph

A graph that contains Hamiltonian circuit is called as Hamiltonian graph.
A path that passes through every vertex exactly once is called as Hamiltonian circuit.
If a graph has a Hamiltonian path, it means it visits all the vertices, but cannot return to the initial vertex.
Finding a Hamiltonian circuit or path is a NP complete problem.

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