Learning Growth Hub

  🚀 Stack in DSA – Introduction, Operations, Applications & Programs (Complete Beginner Guide) Previous Blog in This Series 👉 Dynamic Arrays in C – malloc(), calloc(), realloc(), free() Complete Guide Next Blog in This Series 👉 Queue in DSA – Introduction, Operations & Applications 📘 Introduction After learning Arrays and Dynamic Memory Allocation, the next important topic in Data Structures & Algorithms (DSA) is the Stack . A Stack is one of the most fundamental linear data structures used in programming. It follows a special rule called: LIFO Last In, First Out This means the last element inserted is the first element removed. Real-life examples include: Stack of plates Browser back button Undo/Redo operations Function call management Expression evaluation Parentheses matching Recursion handling In this complete beginner guide, we will learn: ✔ What is Stack ✔ Why Stack is Needed ✔ LIFO Principle ✔ Basic Operations (Push, Pop, Peek, Display) ✔ Stack Representation...

  🚀 Sorting Algorithms in DSA – Bubble Sort & Selection Sort 💡 Did You Know? Imagine arranging student marks from lowest to highest… 👉 Doing it manually takes time ❌ 👉 Sorting algorithms do it efficiently ✅ That’s why Sorting Algorithms are important in DSA 🚀 🔰 Introduction Sorting means arranging data in a specific order. 👉 Data can be arranged: Ascending order (small → large) Descending order (large → small) Sorting helps: Faster searching Better data management Efficient problem solving 🔥 Types of Sorting Algorithms In this guide, you will learn: Bubble Sort Selection Sort 🔹 1. Bubble Sort 👉 Bubble Sort repeatedly compares adjacent elements and swaps them if they are in the wrong order. 🖼️ Visualization 💻 Bubble Sort Program in C #include <stdio.h> // Header file for input/output functions like printf() int main() { // Main function starts execution of program int arr[5] = {50, 20, 40, 10, 30}; // Array with unsorted elements int temp; ...

  🚀 Searching Algorithms in DSA – Linear Search & Binary Search 💡 Did You Know? Imagine finding a name in a list of 10,000 students… 👉 Checking one by one is slow ❌ 👉 Using smart algorithms is faster ✅ That’s why Searching Algorithms are important in DSA 🚀 🔰 Introduction Searching means finding a specific element in data. 👉 Example: Finding a contact in your phone 📱 Searching a word in dictionary 📖 Finding student record 💻 There are two important searching methods: Linear Search Binary Search 🔹 1. Linear Search 👉 Linear Search checks elements one by one from start to end. 🖼️ Visualization 💻 Linear Search Program #include <stdio.h> // Includes standard input/output functions like printf() int main() { // Main function where program execution starts int arr[5] = {10, 20, 30, 40, 50}; // Declare and initialize an array of 5 elements int key = 30; // Store the element we want to search for(int i = 0; i < 5; i++) { // Loop t...