use std::sync::{Arc, Mutex};
use std::thread;
fn main() {
let counter = Arc::new(Mutex::new(0));
let mut handles = vec![];
for _ in 0..10 {
let counter = Arc::clone(&counter);
let handle = thread::spawn( move || {
let mut num = counter.lock().unwrap();
*num += 1
});
handles.push(handle);
}
for handle in handles {
handle.join().unwrap();
}
println!("Result: {}",counter.lock().unwrap());
return;
}