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MSilva95 2f86fd1efe exercises for rust piscine 4 years ago
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README.md exercises for rust piscine 4 years ago

README.md

Highest

Instructions

In this exercise you will be given a Numbers struct.

Your task is to write these methods:

  • List that returns an array with every number in the struct
  • Latest that returns an Option<u32> with the last added number
  • Highest that return an Option<u32> with the highest number from the list,
  • Highest_Three that returns a Vec<u32> with the three highest numbers.

Notions

Expected functions

fn List(&self) -> &[u32] {}

fn Latest(&self) -> Option<u32> {}

fn Highest(&self) -> Option<u32> {}

fn Highest_Three(&self) -> Vec<u32> {}

Usage

Here is a program to test your function.

#[derive(Debug)]
struct Numbers<'a> {
    numbers: &'a [u32],
}

fn main() {
    let expected = [30, 500, 20, 70];
    let n = Numbers::new(&expected);
    println!("{:?}", n.List());
    println!("{:?}", n.Highest());
    println!("{:?}", n.Latest());
    println!("{:?}", n.Highest_Three());
}

And its output

student@ubuntu:~/[[ROOT]]/test$ cargo run
[30, 500, 20, 70]
Some(500)
Some(70)
[500, 70, 30]
student@ubuntu:~/[[ROOT]]/test$