use std::thread;
use std::sync::{Arc, Mutex};

fn main() {
    let numbers = Arc::new(Mutex::new(vec![1, 2, 3]));
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    let mut threads = vec![];
    for i in 0..3 {
------
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        let number = numbers.clone();

        let cur = thread::spawn(move|| {
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            let mut array = number.lock().unwrap();

            array[i] += 1;

            println!("numbers[{}] is {}", i, array[i]);
        });
        threads.push(cur);
    }

    for i in threads {
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        let _ = i.join();
    }
}

use std::thread;
use std::sync::{Arc, Mutex};

fn main()
{
    let numbers = Arc::new(Mutex::new(vec![1, 2]));

    let mut threads = vec![];

    for i in 0..2
    {
        let number = numbers.clone();

        let cur = thread::spawn(move||
        {
            let mut array = number.lock().unwrap();
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            array[i] += 1;
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            println!("numbers[{}] is {}", i, array[i]);
        });
        threads.push(cur);
    }

    for i in threads
    {
        let _ = i.join();
    }
}