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Augusto c4ef9046d4 Add subject and test for the exercise `circle` 4 years ago
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README.md Add subject and test for the exercise `circle` 4 years ago

README.md

circle

Instructions

Create the structures Circle and Point and the methods necessary for the code in usage to compile and run giving the expected result.

Methods:

  • Point; distance()
  • Circle: diameter -> returns the diameter of the circle area -> returns the area of the circle intersection -> returns true if the 2 circles intersect Associated Functions
  • Circle: new -> receives three 64 bits floating point numbers in the following order: x, y and radius (x and y are the coordinates of the center). and returns a new circle

Expected Functions and Structures

This snippets are incomplete and it's part of the exercise to discover the how to complete them

struct Circle {
	center //..
	radius //..
}

struct Point {
// ...	
}

// Point
fn distance(p1, p2) -> _ {

}

// Circle
fn new(x: f64, y: f64, radius: f64) -> Circle {
}

fn diameter(_) -> _ {
}

fn area() -> _ {
}

Usage

Here is a program to test your function

use std::f64::consts;
use circle::{Circle, Point};

fn main() {
	let circle = Circle::new(500.0, 500.0, 150.0);
	let circle1 = Circle {
		center: Point { x: 80.0, y: 115.0 },
		radius: 30.0,
	};
	let point_a = Point { x: 1.0, y: 1.0 };
	let point_b = Point { x: 0.0, y: 0.0 };
	println!("circle = {:?} area = {}", circle, circle.area());
	println!("circle = {:?} diameter = {}", circle, circle.diameter());
	println!("circle1 = {:?} diameter = {}", circle1, circle1.diameter());
	println!(
		"circle and circle1 intersect = {}",
		circle.intersect(&circle1)
	);

	println!(
		"distance between {:?} and {:?} is {}",
		point_a,
		point_b,
		point_a.distance(&point_b)
	);

}

And its output

student@ubuntu:~/[[ROOT]]/test$ cargo run
circle = Circle { center: Point { x: 500.0, y: 500.0 }, radius: 150.0 } area = 70685.83470577035
circle = Circle { center: Point { x: 500.0, y: 500.0 }, radius: 150.0 } diameter = 300
circle1 = Circle { center: Point { x: 80.0, y: 115.0 }, radius: 30.0 } diameter = 60
circle and circle1 intersect = false
distance between Point { x: 1.0, y: 1.0 } and Point { x: 0.0, y: 0.0 } is 1.4142135623730951
student@ubuntu:~/[[ROOT]]/test$