Mahmoud Derbi (mmderbi)

🚀 C++ Programming — Part 16: Multi-Dimensional Arrays 🔢 So far, we’ve used one-dimensional arrays (lists). Now, let’s level up with multi-dimensional arrays — like tables or grids 💡 --- 🔹 What Are They? A 2D array is basically an array of arrays. Think of it as rows and columns 👇 int matrix[2][3] = { {1, 2, 3}, {4, 5, 6} }; This creates 2 rows × 3 columns = 6 elements. --- 🔹 Accessing Elements: cout << matrix[0][2]; // 3 cout << matrix[1][1]; // 5 The first index = row, the second = column. --- 🔹 Looping Through a 2D Array: for (int i = 0; i < 2; i++) { for (int j = 0; j < 3; j++) { cout << matrix[i][j] << " "; } cout << endl; } ✅ Output: 1 2 3 4 5 6 --- 🔹 Why Use Them? 2D arrays are perfect for grids, game maps, matrices, or seating charts 🎮 --- 🔹 Coming next (Part 17): We’ll explore vectors — dynamic arrays that grow and shrink automatically 🚀

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🚀 C++ Programming — Part 15: Arrays & Memory ⚡ Now that you can loop through arrays, it’s time to understand how they live in memory — and why C++ gives you so much control 🔍 --- 🔹 What Is an Array? An array is a group of variables of the same type stored next to each other in memory 👇 int nums[3] = {10, 20, 30}; Each element is stored in order — and you can access them by index: cout << nums[0]; // 10 --- 🔹 Arrays & Memory Addresses: Every element has its own memory address 🔢

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🚀 C++ Programming — Part 14: Loops with Strings & Arrays 🔁 Now that you know how strings and arrays work — let’s learn how to loop through them efficiently 👇 🔹 Looping Through an Array: Use a for loop to go through each element one by one 👇 int numbers[] = {10, 20, 30, 40}; for (int i = 0; i < 4; i++) { cout << numbers[i] << " "; } ✅ Output: 10 20 30 40 --- 🔹 Looping Through a String: Each character in a string can be accessed like an array element 👇 string word = "Hello"; for (int i = 0; i < word.length(); i++) { cout << word[i] << " "; } ✅ Output: H e l l o --- 🔹 Using Range-Based For Loop (Modern C++): A cleaner and more readable way 👇 for (char c : word) { cout << c << " "; } ✅ Same result — but shorter and safer! --- 🔹 Coming next (Part 15): We’ll explore arrays & memory together — how they’re stored and how pointers interact with them ⚡

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🚀 C++ Programming — Part 7: Arrays So far, we’ve stored one value per variable. But what if you need to store many values of the same type? 🤔 That’s where arrays come in! 🔹 What Is an Array? An array is a collection of elements stored under one name — like a list 📦 Example 👇 int numbers[5] = {10, 20, 30, 40, 50}; ✅ This creates 5 integer slots: numbers[0] = 10, numbers[1] = 20, … numbers[4] = 50 --- 🔹 Accessing Elements: cout << numbers[2]; // Output: 30 🔹 Using Loops with Arrays: for (int i = 0; i < 5; i++) { cout << numbers[i] << " "; } ✅ Prints: 10 20 30 40 50 --- 🔹 Why Use Arrays? They make it easy to manage large sets of data without creating dozens of variables 💪 🔹 Coming next (Part 8): We’ll explore functions — how to organize your code and make it reusable 🧠

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🚀 C++ Programming — Part 6: Loops (For & While) Sometimes you need your code to repeat tasks — like printing numbers or checking data 🔁 That’s what loops do! 🔹 For Loop: Used when you know how many times to repeat 👇 for (int i = 1; i <= 5; i++) cout << i << endl; ✅ Prints 1–5 🔹 While Loop: Repeats until the condition is false 👇 int x = 1; while (x <= 5) { cout << x << endl; x++; } 🔹 Do-While: Runs the code at least once 👇 int y = 1; do { cout << y << endl; y++; } while (y <= 5); 🔹 Why It Matters: Loops save time, reduce code, and handle repetition automatically ⚙️ 🔹 Coming next (Part 7): We’ll learn arrays — how to store multiple values easily 🧠

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🚀 C++ Programming — Part 4: Operators & Expressions Now that you know how to store data using variables, let’s learn how to make your program think and calculate 🔹 What Are Operators? Operators are symbols that tell the computer what to do with your data — like adding, comparing, or combining values. 🔹 Types of Operators: 1️⃣ Arithmetic Operators: + - * / % Example: int x = 10 + 5; // x = 15 int y = 10 % 3; // y = 1 (remainder) 2️⃣ Comparison Operators: Used to compare values (result is true or false): == != > < >= <= Example: if (x > y) { cout << "x is greater!"; } 3️⃣ Logical Operators: Used for combining conditions: && (AND) || (OR) ! (NOT) Example: if (age > 18 && hasID) { cout << "Access granted"; } Why It Matters: Operators are the “brain” of your code — they make decisions, perform math, and control logic. 🔹 Coming next (Part 5): We’ll dive into if statements and conditions — how your program makes decisions 🧠

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🚀 Introduction to C++ Programming If you’re into coding and want to start with a powerful, fast, and professional language, C++ is the perfect place to begin 💻 🔹 What is C++? C++ is a general-purpose language that evolved from C in the 1980s. It’s known for its speed, efficiency, and full control over system resources — that’s why it’s used in operating systems, games, AI, and high-performance software. 🔹 Why learn C++? It’s the base of many modern languages like Java, C#, and Python. It teaches you how computers truly work — not just how to code. It powers game engines (Unreal Engine), embedded systems, and large apps. 🔹 What can you build with it? Anything from a simple “Hello World” 😄 to massive projects like PUBG or Fortnite 🎮 🔹 Final thought: C++ isn’t the easiest to learn, but it builds real programming skills and deep understanding. Start small — and let your code speak for you 💪

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