use std::io;
use rand::Rng;

use std::cmp::Ordering;

fn main() {
    println!("Guess the number!");

    let secret_number = rand::thread_rng().gen_range(1, 101);

    println!("The secret number is: {}", secret_number);

    loop {
        println!("Please input your guess.");

        let mut guess = String::new();
        // let a = [[1.0,2.0],[3.0,0.1]];
        // println!("a = {} {}",a[1][1],a[0][0]);
        let /* mut */ s1 = String::from("hello");
        let s2 = s1;
        let hello = "Здравствуйте";
        // s1 = s2;
        let answer = match hello.chars().nth(1) {
            Some(c) => c,
            None => continue,
        };

        println!("{}, world! {}", s2,answer);

        let mut j = 0;
        for i in 0 .. 10 {
            j += i;
        }
        println!("{}",j);

        io::stdin()
            .read_line(&mut guess)
            .expect("Failed to read line");

        let guess: u32 = match guess.trim().parse() {
            Ok(num) => num,
            Err(_) => continue,
        };
        println!("You guessed: {}", guess);

        match guess.cmp(&secret_number) {
            Ordering::Less => println!("Too small!"),
            Ordering::Greater => println!("Too big!"),
            Ordering::Equal => {
                println!("You win!");
                break;
            }
        }
    }
}