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Master the Stack Data Structure in Rust – LIFO Explained! 🚀
In this Rust programming tutorial, we dive deep into the Stack data structure, a crucial concept in Data Structures & Algorithms (DSA). Stacks operate on the LIFO (Last In, First Out) principle, making them a fundamental part of memory management, recursion, and algorithm design.

📌 What You’ll Learn in This Video:
✅ What is a Stack Data Structure?
✅ Understanding LIFO (Last In, First Out) Principle
✅ How Stack Memory Works in Rust
✅ Implementing Push & Pop Operations in Rust
✅ How Rust's Ownership & Borrowing Rules Affect Stack Implementation
✅ Difference Between Stack vs. Heap Memory
✅ Real-World Applications of Stacks in Programming

🚀 Why Stacks Are Important in Programming?
✔ Used in Recursion: Function calls are stored on a stack, making it crucial for recursion.
✔ Memory Management: Manages temporary storage in function calls efficiently.
✔ Backtracking Algorithms: Used in DFS (Depth First Search), Undo/Redo, Expression Evaluation, and Syntax Parsing.
✔ Efficient Insertions & Deletions: O(1) time complexity for both operations.

📌 How Stacks Work – Step-by-Step Example
🛠 Understanding Stack Operations:
🔹 Push Operation: Add an element at the top of the stack.
🔹 Pop Operation: Remove the top element from the stack.
🔹 Top (Peek) Operation: View the top element without removing it.
🔹 IsEmpty: Check if the stack is empty.

💻 Implementing a Stack in Rust
rust
Copy
Edit
struct Stack{
elements:
}

// Create a new stack
fn new() - Self {
Stack { elements: Vec::new() }
}

// Push a new element onto the stack
fn push(&mut self, item: T) {
self.elements.push(item);
}

// Pop the top element from the stack
self.elements.pop()
}

// Peek at the top element self.elements.last()
}

// Check if stack is empty
fn is_empty(&self) - bool {
self.elements.is_empty()
}
}

// Testing the stack implementation
fn main() {
let mut stack = Stack::new();

stack.push(10);
stack.push(20);
stack.push(30);

println!("Top Element: {:?}", stack.peek());
println!("Popped Element: {:?}", stack.pop());
println!("Stack is Empty? {}", stack.is_empty());
}
📌 How This Works?
📌 Push(10) → Adds 10 to the stack
📌 Push(20) → Adds 20 on top of 10
📌 Push(30) → Adds 30 on top of 20
📌 Pop() → Removes 30 (LIFO principle)
📌 Peek() → Returns the top element without removing it

📢 Upcoming Rust Tutorials:
📌 Next Topics:
✅ Queues – FIFO (First In, First Out) Data Structure in Rust
✅ Doubly Linked Lists & Advanced Data Structures
✅ Stacks & Queues in System Design
✅ Graphs, Trees & Searching Algorithms in Rust

💡 Why Learn Data Structures in Rust?
🚀 Rust Offers Safe & Fast Memory Management
🚀 No Garbage Collector, Better Performance
🚀 Perfect for Competitive Programming & System Design
🚀 Essential for Cracking Coding Interviews

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