This course provides the best approach to learn Rust, starting from the basics and advancing to complex topics. It is an introduction to Rust for beginners aspiring to become skilled Rust developers.

The word is out: developers love Rust. It's rapidly becoming a top choice for systems and embedded programmers, and the demand for Rust developers is rising. Known for its performance, reliability, and productivity—especially compared to C++—Rust is a powerful language to master. If you're a systems developer, it's a fantastic next step.
In this course, you'll learn Rust by actively engaging in coding. You’ll start with a simple "Hello world" program and cover essential concepts like arrays, strings, vectors, enums, structures, traits, generics, functions, and logic. You'll also dive into advanced topics such as lifetime and memory management.
By the end of this course, you'll have a solid foundation in Rust programming and be well-prepared to take on more advanced concepts, making it ideal for Rust beginners looking to become proficient Rust developers.

Rust Programming Language

#[derive(Debug)] // prints the value of struct using the debug trait
struct Point {
	x: i32,
	y: i32
}
fn test(point1: Point, point2: Point)-> f32 {
    let distance = i32::pow(point1.x - point2.x,2) + i32::pow(point1.y - point2.y,2);
    let d = distance as f32;
    d.sqrt()
}
fn main(){
    let point1 = Point { x: 3, y: 4 };
    let point2 = Point { x: 2, y: 3 }; 
    println!("point1:{:?}", point1); 
    println!("point2:{:?}", point2); 
    print!("Distance between two points:");
    print!("{}", test(point1, point2));
}

struct Point {
	x: i32,
	y: i32
}
fn test()-> String {
	let origin = Point { x: 0, y: 0 };
    format!("{}{}", origin.x, origin.y)
}

## Explanation

- **`struct` `Point`**
  * On **line 2**, a  `struct`   `Point`  is defined which has two items `x` of type `i32` and `y` of type `i32`.

- **`test` function**
  * On **line 6**, a function `test` is defined which takes parameter `point1` and `point2` of type `Point` and returns an `f32` type, i.e., the distance between the two points.

  * On **line 7**, ${(x1 - x2)^2+(y1 - y2)^2}$, is calculated and stored in variable `distance`.

  * On **line 8**, `distance` is converted as `f32` and the result is stored in variable `d`.

  * On **line 9**, `d.sqrt()` takes the square root of distance and returns the result. 


* The value of instance is printed on the console.


The following illustration explains the above code:

This lesson discusses the detailed solution review to the problem in the previous lesson.

Introduction to Rust

Rust Programs

Rust Variables

Rust Data Types

Rust Operators

Rust if and if let Expressions

Rust Loops

Rust Functions

Rust Strings

Rust Vectors

Rust Structs

Conclusion

Rust Exam

Solution Review: Calculate Distance Between Two Points

Solution:

Explanation