paiza.ioでrust その14

概要

paiza.ioでrustやってみた。
練習問題やってみた。

練習問題

threadを使え。

参考にしたページ

サンプルコード

use std::sync::{Arc, Mutex};
use std::time::Duration;
use std::thread;
use std::process::exit;

static HowManyCheckNum: i32 = 50;
fn main() {
    let count_arc = Arc::new(Mutex::new(0));
    let flag_arc = Arc::new(Mutex::new(0));
    thread::spawn({
        let count_clone = Arc::clone(&count_arc);
        let flag_clone = Arc::clone(&flag_arc);
        move || {
            loop 
            {
                thread::sleep(Duration::from_millis(10));
                let mut num = count_clone.lock().unwrap();
                let mut flag = flag_clone.lock().unwrap();
                if *num % 15 == 0 && *flag == 1
                {
                    println!("FizzBuzz:{}", *num);
                    *flag = 0;
                }
                else if *num % 3 == 0 && *flag == 1 
                {
                    println!("Fizz:{}", *num);
                    *flag = 0;
                }
                else if *num % 5 == 0 && *flag == 1
                {
                    println!("Buzz:{}", *num);
                    *flag = 0;
                }
                else 
                {
                    continue;
                }
            }
        }
    });
    thread::spawn({
        let count_clone = Arc::clone(&count_arc);
        move || {
            loop 
            {
                thread::sleep(Duration::from_millis(50));
                let num = count_clone.lock().unwrap();
                if *num > HowManyCheckNum 
                {
                    println!("Check FizzBuzz TO {}", HowManyCheckNum);
                    exit(0);
                }
            }
        }
    });
    let count_clone = Arc::clone(&count_arc);
    let flag_clone = Arc::clone(&flag_arc);
    for _ in 1..99
    {
        thread::sleep(Duration::from_millis(10));
        let mut num = count_clone.lock().unwrap();
        let mut flag = flag_clone.lock().unwrap();
        if *flag == 1 
        {
            println!("{}", num);
        }
        *num = *num + 1;
        *flag = 1;
    }
}

実行結果

1
2
Fizz:3
4
Buzz:5
Fizz:6
7
8
Fizz:9
Buzz:10
11
Fizz:12
13
14
FizzBuzz:15
16
17
Fizz:18
19
Buzz:20
Fizz:21
22
23
Fizz:24
Buzz:25
26
Fizz:27
28
29
FizzBuzz:30
31
32
Fizz:33
34
Buzz:35
Fizz:36
37
38
Fizz:39
Buzz:40
41
Fizz:42
43
44
FizzBuzz:45
46
47
Fizz:48
49
Buzz:50
Fizz:51
52
53
Check FizzBuzz TO 50

成果物

以上