828 B
828 B
fn main() {
// don't modify the following two lines!
let (x, y) = (1, 2);
let s = sum(x, y);
assert_eq!(s, 3);
}
fn sum(x: i32, y: i32) -> i32 {
x + y
}
fn main() {
print();
}
// replace i32 with another type
fn print() -> () {
println!("hello,world");
}
fn main() {
never_return();
}
fn never_return() -> ! {
// implement this function, don't modify fn signatures
panic!("I return nothing!")
}
fn main() {
never_return();
}
use std::thread;
use std::time;
fn never_return() -> ! {
// implement this function, don't modify fn signatures
loop {
println!("I return nothing");
// sleeping for 1 second to avoid exhausting the cpu resoucre
thread::sleep(time::Duration::from_secs(1))
}
}