#c++ data structure

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Mastering Linked Lists: Beginner's Guide

Hey Tumblr friends 👋

After learning about Arrays, it's time to level up! Today we’re diving into Linked Lists — another fundamental building block of coding! 🧱✨

So... What is a Linked List? 🤔

Imagine a treasure hunt 🗺️:

You find a clue ➡️ it points you to the next clue ➡️ and so on.

That's how a Linked List works!

🔗 Each element (Node) holds data and a pointer to the next Node.

It looks something like this: [data | next] -> [data | next] -> [data | next] -> NULL

Why Use a Linked List? 🌈

✅ Dynamic size (no need to pre-define size like arrays!) ✅ Easy insertions and deletions ✨ ✅ Great for building stacks, queues, and graphs later!

❌ Slower to access elements (you can't jump straight to an item like arrays).

Basic Structure of a Linked List Node 🛠️

data -> stores the actual value

next -> points to the next node

📚 CRUD Operations on Linked Lists

Let’s build simple CRUD functions for a singly linked list in C++! (🚀 CRUD = Create, Read, Update, Delete)

Create (Insert Nodes)

Read (Display the list)

Update (Change a Node’s Value)

Delete (Remove a Node)

🌟 Final Thoughts

🔗 Linked Lists may look tricky at first, but once you master them, you’ll be ready to understand more powerful structures like Stacks, Queues, and even Graphs! 🚀

🌱 Mini Challenge:

Build your own linked list of your favorite songs 🎶

Practice inserting, updating, and deleting songs!

If you loved this explainer, give a follow and let's keep leveling up together! 💬✨ Happy coding, coder fam! 💻🌈 For more resources and help join our discord server

[miscellaneous2848]

THEYRE MAKING US LEARN JAVA AGAIN

[watchmorecinema]

Normally I just post about movies but I'm a software engineer by trade so I've got opinions on programming too.

Apparently it's a month of code or something because my dash is filled with people trying to learn Python. And that's great, because Python is a good language with a lot of support and job opportunities. I've just got some scattered thoughts that I thought I'd write down.

Python abstracts a number of useful concepts. It makes it easier to use, but it also means that if you don't understand the concepts then things might go wrong in ways you didn't expect. Memory management and pointer logic is so damn annoying, but you need to understand them. I learned these concepts by learning C++, hopefully there's an easier way these days.

Data structures and algorithms are the bread and butter of any real work (and they're pretty much all that come up in interviews) and they're language agnostic. If you don't know how to traverse a linked list, how to use recursion, what a hash map is for, etc. then you don't really know how to program. You'll pretty much never need to implement any of them from scratch, but you should know when to use them; think of them like building blocks in a Lego set.

Learning a new language is a hell of a lot easier after your first one. Going from Python to Java is mostly just syntax differences. Even "harder" languages like C++ mostly just mean more boilerplate while doing the same things. Learning a new spoken language in is hard, but learning a new programming language is generally closer to learning some new slang or a new accent. Lists in Python are called Vectors in C++, just like how french fries are called chips in London. If you know all the underlying concepts that are common to most programming languages then it's not a huge jump to a new one, at least if you're only doing all the most common stuff. (You will get tripped up by some of the minor differences though. Popping an item off of a stack in Python returns the element, but in Java it returns nothing. You have to read it with Top first. Definitely had a program fail due to that issue).

The above is not true for new paradigms. Python, C++ and Java are all iterative languages. You move to something functional like Haskell and you need a completely different way of thinking. Javascript (not in any way related to Java) has callbacks and I still don't quite have a good handle on them. Hardware languages like VHDL are all synchronous; every line of code in a program runs at the same time! That's a new way of thinking.

Python is stereotyped as a scripting language good only for glue programming or prototypes. It's excellent at those, but I've worked at a number of (successful) startups that all were Python on the backend. Python is robust enough and fast enough to be used for basically anything at this point, except maybe for embedded programming. If you do need the fastest speed possible then you can still drop in some raw C++ for the places you need it (one place I worked at had one very important piece of code in C++ because even milliseconds mattered there, but everything else was Python). The speed differences between Python and C++ are so much smaller these days that you only need them at the scale of the really big companies. It makes sense for Google to use C++ (and they use their own version of it to boot), but any company with less than 100 engineers is probably better off with Python in almost all cases. Honestly thought the best programming language is the one you like, and the one that you're good at.

Design patterns mostly don't matter. They really were only created to make up for language failures of C++; in the original design patterns book 17 of the 23 patterns were just core features of other contemporary languages like LISP. C++ was just really popular while also being kinda bad, so they were necessary. I don't think I've ever once thought about consciously using a design pattern since even before I graduated. Object oriented design is mostly in the same place. You'll use classes because it's a useful way to structure things but multiple inheritance and polymorphism and all the other terms you've learned really don't come into play too often and when they do you use the simplest possible form of them. Code should be simple and easy to understand so make it as simple as possible. As far as inheritance the most I'm willing to do is to have a class with abstract functions (i.e. classes where some functions are empty but are expected to be filled out by the child class) but even then there are usually good alternatives to this.

Related to the above: simple is best. Simple is elegant. If you solve a problem with 4000 lines of code using a bunch of esoteric data structures and language quirks, but someone else did it in 10 then I'll pick the 10. On the other hand a one liner function that requires a lot of unpacking, like a Python function with a bunch of nested lambdas, might be easier to read if you split it up a bit more. Time to read and understand the code is the most important metric, more important than runtime or memory use. You can optimize for the other two later if you have to, but simple has to prevail for the first pass otherwise it's going to be hard for other people to understand. In fact, it'll be hard for you to understand too when you come back to it 3 months later without any context.

Note that I've cut a few things for simplicity. For example: VHDL doesn't quite require every line to run at the same time, but it's still a major paradigm of the language that isn't present in most other languages.

Ok that was a lot to read. I guess I have more to say about programming than I thought. But the core ideas are: Python is pretty good, other languages don't need to be scary, learn your data structures and algorithms and above all keep your code simple and clean.

[shelikesrainydays]

// August 18th, 2024

Yesterday I broke in tears because I think I’m going to fail Data Structures and Algorithms this semester. It’s just, too much. Not the topics I have to study, not even that I don’t actually enjoy practicing it, oh no. It’s that I don’t think I’m going to be able to send all of my assignments on time and they affect the final grade a lot. The materials for all three subjects get released only on Wednesdays at noon and it’s expected that an almost impossible amount of assignments are delivered before the following Tuesday at 8 p.m.

Why can’t I, for instance, do the work, send it as soon as I have it ready, and they can just take into account that I actually followed on the lessons and studied hard for the two exams before the final? It’s just… I don’t know. It seems ridiculous to me. I would be doing my best even without having that stupid pressure of doing the assignments on time, like any other person who is serious about theirs studies. I know I probably sound like a stupid kid, but people going to this university at night usually have a job already, otherwise, why wouldn’t we be taking the lessons on mornings/afternoons? Don’t they think about those cases? Incredible.

And I know one can probably think, “well, why don’t you drop that subject and follow up others and retake this one further in the future?

And the answer to that is, a) I’m feeling old to keep postponing my graduation (35 is becoming my least worst shot) and b) I have more plans, like for other important aspects of my life as well. And… ugh. The pressure. It’s too much.

I spoke to my sweet boyfriend about all these worries I have and he’s happy with both me telling him what I feel and how hard I am working with this. “Honey, it’s just the second week of the semester. You got this”. Cuddles and sushi were provided, and even when that didn’t wash the worries or pressure away, I felt loved. And cared for. I’m so lucky to have him in my life.

Sorry for the rant guys. I get that this is just the way it is and that these are the terms for getting a good grade, and if I don’t like it I can just leave it and try again, but… I just needed to get some of it out of my chest 🥲

But hey, at least I was able to write my very first little programs in C yesterday. Yay 🍷

[attitudetallyacademy]

How to Start Your Journey in Computer Science

Introduction

Computer Science is one of the most dynamic and in-demand fields today. From mobile apps to AI, data analysis to cybersecurity, the scope of computer science is vast. For students wondering where to begin, the journey starts with building strong fundamentals.

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1. Begin with Programming Fundamentals

The foundation of computer science begins with learning programming languages. Languages like C and C++ are ideal for beginners as they help build logic and understanding of how a computer processes instructions. Many students begin with:

C Classes or C++ Classes

C++ Coaching Instituteor nearby areas

These help you master the syntax, data types, control structures, and problem-solving skills necessary for advanced learning.

2. Advance to Object-Oriented Programming (OOP)

Once you’re comfortable with the basics, moving on to C++ and Java is a smart move. These object-oriented languages teach you how to write reusable code and develop software systematically.

Students often opt for:

C++ Training or Java Training

Java Coaching Institute for deeper concept clarity

Java Classes for hands-on project experience

These courses prepare you for real-world applications and interviews in software roles.

3. Strengthen Your Data Structure Knowledge

Knowing how to write code is just the beginning. Efficient coding depends on how well you understand Data Structures. This includes arrays, linked lists, stacks, queues, trees, and graphs.

If you're planning to enter software development, software engineering, or competitive programming, joining a good Data Structure Course in or a Data Structure Training Institute is essential.

You can also explore:

Data Structure Coaching Institute in Yamuna Vihar

Data Structure Classeswith live problem-solving sessions

4. Learn About Databases and Query Languages

Another important area is managing and retrieving data. SQL and MySQL are used in almost every application that stores data—from websites to mobile apps. Learning how to interact with databases gives you an edge.

You can begin with:

SQL Classes or SQL Classes

MySQL Training Institute or MySQL

Practical exposure through MySQL Coaching Institute or MySQL Coaching helps in writing efficient queries and understanding database management.

5. Explore Specializations like Web & App Development

Once you’re comfortable with basic coding and data handling, you can start exploring more specific fields. Web technologies like HTML, CSS, JavaScript, JSP, and frameworks like React or Angular are a great way to enter front-end or back-end development.

You’ll find JSP Coaching and JSP Coaching in Uttam Nagar useful if you're interested in Java-based web development.

6. Build a Strong Foundation with Computer Applications

If you’re starting from scratch or want a general overview, Diploma in Computer Application (DCA) and Advanced Diploma in Computer Application (ADCA) are valuable. They cover basic software tools, internet usage, data handling, and more.

Many students choose:

DCA Course or DCA Course

Advanced Diploma in Computer Application for deeper learning

Computer Application Coaching Institute for practical training

7. Practice and Build Projects

Learning theory is not enough. Building real-time projects—like calculators, mini games, websites, or management systems—helps you apply your knowledge and showcase your skills to future employers.

Join local Computer Science Training Institutes in Uttam nagar that focus on project-based learning. Hands-on experience not only strengthens your understanding but also boosts your confidence.

Final Thoughts

The journey into computer science is not a sprint—it's a step-by-step learning experience. Whether you’re looking for C++ Coaching , Data Structure Coaching, or even Computer Science Course, the key is to start with the basics and grow gradually.

Choose courses that focus on real-world applications, give you coding practice, and help you understand concepts deeply. The demand for skilled programmers, software developers, and data analysts is only growing. Now is the right time to begin your journey.

Suggested Links:

C++ Programming Language

Database Management System

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Learn Core Java

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Data Structures in Popular Programming Languages: A Top Down Introduction

Data structures are fundamental building blocks in programming, allowing developers to efficiently store, organize, and manipulate data. Every programming language provides built-in data structures, and developers can also create custom ones to suit specific needs. Below, we will explore: What data structures are and why they are important Common data structures in programming How to…

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 "Mastering C Programming: A Comprehensive Guide for Beginners and Experts"

Understanding C Programming: The Foundation of Modern Software Development

C programming, developed in the early 1970s by Dennis Ritchie at Bell Labs, is one of the most enduring and influential programming languages in the history of computing. Its design has directly influenced many other popular languages such as C++, Java, and Python. Despite the emergence of numerous high-level programming languages, C remains a cornerstone in both academic and professional software development environments due to its efficiency, control, and widespread use in system-level programming.

The Essence of C Programming

C is a general-purpose programming language that is particularly well-suited for system programming, including the development of operating systems, compilers, and embedded systems. It provides low-level access to memory through the use of pointers, which allows for efficient manipulation of data and memory management. This is one reason why the UNIX operating system, originally written in assembly language, was eventually rewritten in C.

The syntax of C is concise and powerful. Its constructs map efficiently to typical machine instructions, which makes it an ideal language for performance-critical applications. The simplicity of C's syntax, compared to other languages at the time of its creation, made it easier to learn and use while still being robust enough to handle complex programming tasks.

Key Features of C

Portability: One of the primary reasons for C's enduring popularity is its portability. Programs written in C can be compiled and run on different types of computers with little or no modification, which is crucial in today's diverse computing environments.

Efficiency: C is known for producing fast and efficient code. Its low-level capabilities allow programmers to write code that executes quickly and uses system resources judiciously. This makes it an excellent choice for performance-sensitive applications.

Modularity: C encourages the modular design of software. Functions in C can be defined and called independently, which makes code easier to understand, maintain, and reuse. This modularity is further enhanced by the use of header files and libraries.

Rich Library Support: The standard C library provides a rich set of built-in functions for performing common tasks, such as input/output operations, string manipulation, mathematical computations, and memory management. This extensive library support accelerates the development process.

C in Modern Context

Despite being over four decades old, C remains relevant in modern computing. It is extensively used in developing firmware and embedded systems, where direct hardware manipulation is required. The language's influence is also evident in many contemporary programming languages. For example, C++ was developed as an extension of C to include object-oriented features while maintaining C's efficiency and low-level capabilities.

Learning C provides a strong foundation for understanding computer science concepts and principles. Many educational institutions use C as an introductory programming language because it teaches fundamental programming techniques, such as variable manipulation, control structures, data structures, and algorithm development, which are applicable to learning other languages.

Conclusion

C programming is more than just a language; it is a gateway to understanding the inner workings of computers and software development. Its efficiency, control, portability, and rich library support make it an indispensable tool for programmers. Whether used in system programming, embedded systems, or as a stepping stone to other languages, C continues to be a fundamental part of the software development landscape. Its influence on modern programming practices and its role in the development of many other languages underscore its importance and enduring legacy in the world of computing.

[webthreecorp]

🌟 Understanding Arrays: A Beginner’s Deep Dive! 🌟

Hey Tumblr friends 👋

Today I want to break down something super important if you're getting into coding: Arrays. (Yes, those weird-looking brackets you've probably seen in code snippets? Let’s talk about them.)

So... What Exactly Is an Array? 🤔

Imagine you have a bunch of favorite songs you want to save. Instead of creating a new playlist for each song (chaotic!), you put them all into one single playlist.

That playlist? That’s what an Array is in programming! 🎶✨

An array is basically a container where you can store multiple values together under a single name.

Instead of doing this:

You can just do:

Why Are Arrays Useful? 🌈

✅ You can group related data together. ✅ You can loop through them easily. ✅ You can dynamically access or update data. ✅ You keep your code clean and organized. (No messy variables 👀)

How Do You Create an Array? ✨

Here's a simple array:

Or create an empty array first (you must specify size in C++):

Note: C++ arrays have a fixed size once declared!

How Do You Access Items in an Array? 🔎

Arrays are zero-indexed. That means the first element is at position 0.

Example:

Changing Stuff in an Array 🛠️

You can update an item like this:

Looping Through an Array 🔄

Instead of writing:

Use a loop:

Or a range-based for loop (cleaner!):

Some Cool Things You Can Do With Arrays 🚀

In C++ you don't have built-in methods like push, pop, etc. for raw arrays, but you can use vectors (dynamic arrays)! Example with vector:

Quick Tip: Arrays Can Store Anything 🤯

You can store numbers, booleans, objects (structures/classes), and even arrays inside arrays (multidimensional arrays).

Example:

Real-World Example 🌍

A To-Do list:

Output:

👏 See how clean and readable that is compared to hardcoding every single task?

🌟 Final Thoughts

Arrays are the foundation of so much you'll do in coding — from simple projects to complex apps. Master them early, and you'll thank yourself later!

🌱 Start practicing:

Make a list of your favorite movies

Your favorite foods

Songs you love

...all in an array!

If you liked this C++ explainer, let’s connect! 💬✨ Happy coding, coder fam! 💻🌈

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[ceausescue]

been consumed with the idea for the worst programming language in the world. a lisp 2 with clojure syntax, bytecode interpreted. with goroutines. like janet written by a moron, like common lisp written by someone who hates themselves. hand rolled garbage collector that has to deal with all the intermediate objects from immutable types. im tagging like 11 bits out of every pointer, 3 on the small end and 8 suspended in the middle of the top 16, which is a violation of the geneva convention. none of those bits encode the type and im still boxing floats. pretty sure i worked out how to support special environments that compile to totally untypechecked machine code for fast math. came up with an inline assembly thing for it i might just expose to the user. i don't expect ill ever bother with networking

[attitudetallyacademy]

Top 10 C Programming Tips to Write Efficient & Error-Free Code

Introduction

C programming is one of the most powerful languages, forming the foundation of modern software development. Whether you are a beginner or an experienced coder, writing efficient and error-free code is crucial. Here are 10 expert tips to help you improve your C programming skills and write optimized code with ease.

1. Master the Basics Before Diving into Advanced Concepts

Before exploring advanced topics like Data Structure Training in Yamuna Vihar or C++ Coaching Institute in Uttam Nagar, ensure you have a strong foundation in C programming basics. Understanding variables, loops, functions, and pointers will make complex topics easier.

2. Use Meaningful Variable and Function Names

Descriptive variable names improve code readability. Instead of writing:

c

CopyEdit

int x = 10; 

Use:

c

CopyEdit

int studentCount = 10; 

Similarly, functions should clearly indicate their purpose, making debugging and collaboration easier.

3. Keep Your Code Simple and Structured

Avoid writing lengthy, complex code. Break your program into small functions, making it more readable and reusable. If you’re preparing for Java Training in Uttam Nagar, learning structured coding will be highly beneficial.

4. Use Comments to Explain Your Code

Comments help in understanding the logic behind the code. Always include meaningful comments, especially for complex logic or functions.

c

Copy Edit

// Function to calculate area of a rectangle 

int calculateArea(int length, int width) { 

    return length * width; 

} 

5. Avoid Using Too Many Global Variables

Excessive use of global variables can lead to unwanted bugs and memory issues. Instead, prefer local variables and pass values through function arguments. This is especially important when learning Data Structure Course in Yamuna Vihar or C++ Training Institute in Uttam Nagar.

6. Optimize Memory Usage

Efficient memory management ensures smooth execution. Use malloc() and free() wisely to allocate and deallocate memory dynamically. If you're considering Computer Science Training in Uttam Nagar, mastering memory management will be a great advantage.

c

CopyEdit

int *ptr = (int*) malloc(sizeof(int) * 10); 

free(ptr); // Always free allocated memory  

7. Always Initialize Variables Before Use

Uninitialized variables can lead to unpredictable results. For example:

c

CopyEdit

int num; 

printf("%d", num);  // Undefined behavior 

To avoid errors, always initialize variables before using them.

8. Debugging: Use Print Statements & Debuggers

Using debugging tools like gdb or adding printf() statements can help you quickly identify errors. Debugging is a key skill, whether you’re learning SQL Classes in Yamuna Vihar or preparing for MySQL Training in Uttam Nagar.

9. Follow Standard Coding Practices

Consistent coding style makes programs easier to read. Maintain proper indentation, spacing, and structured loops to keep your code clean.

Example of well-structured code:

c

CopyEdit

for(int i = 0; i < 10; i++) { 

    printf("Number: %d\n", i); 

} 

10. Practice, Practice & More Practice!

The best way to master C programming is through constant practice. Work on projects, build small applications, and enroll in C++ Classes in Yamuna Vihar or Data Structure Training Institute in Uttam Nagar to sharpen your skills.

Final Thoughts

By following these 10 essential tips, you can write optimized, bug-free, and efficient C programs. Whether you are learning Java Coaching in Yamuna Vihar or preparing for MySQL Coaching Institute in Uttam Nagar, strong C programming skills will help you succeed in the world of coding.

If you're looking for structured training in C, C++, Java, SQL, and Data Structures, explore expert-led computer science courses in Uttam Nagar to enhance your programming expertise! For that Visit Us

Suggested Links

C++ Programming Language

Database Management System

Advanced Data Structures

[spindlecrank]

Data Structures in Popular Programming Languages: A Top Down Introduction

Data structures are fundamental building blocks in programming, allowing developers to efficiently store, organize, and manipulate data. Every programming language provides built-in data structures, and developers can also create custom ones to suit specific needs. Below, we will explore: What data structures are and why they are important Common data structures in programming How to…