Codes

Rust

Rust

Installation

Ubuntu

apt install rustc

Alma Linux

dnf install rust

Arch Linux

pacman -S rust

Binary

# Download rust-{version}-{arch}-{os}.tar.gz from https://rust-lang.org
tar xzf rust-{version}-{arch}-{os}.tar.gz
cd rust-{version}
./install.sh

Examples

Fibonacci Numbers

// Fibonacci Numbers
use std::env;

fn fib(n: i64) -> i64 {
    if n < 2 {
        n
    } else {
        fib(n - 1)  + fib(n - 2)
    }
}

fn main() {
    if let Some(s) = env::args().nth(1) {
        if let Ok(n) = s.parse::<i64>() {
            println!("{}", fib(n))
        }
    }
}

/*
 example
    compile:
        rustc -C opt-level=3 fib.rs
    run:
        ./fib 39
*/