36 lines
573 B
Rust
36 lines
573 B
Rust
|
use std::env;
|
||
|
|
|
||
|
|
fn print_hanoi(n:i32)
|
||
|
|
{
|
||
|
|
if n == 2
|
||
|
|
{
|
||
|
|
println!("1");
|
||
|
|
println!("2");
|
||
|
|
println!("1");
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
print_hanoi(n-1);
|
||
|
|
println!("{}", n);
|
||
|
|
print_hanoi(n-1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main()
|
||
|
|
{
|
||
|
|
let args:Vec<String> = env::args().collect();
|
||
|
|
if args.len() != 2
|
||
|
|
{
|
||
|
|
println!("Need a number!");
|
||
|
|
std::process::exit(1);
|
||
|
|
}
|
||
|
|
let n:i32 = args[1].parse().unwrap();
|
||
|
|
if n < 2
|
||
|
|
{
|
||
|
|
println!("Need a number greater than 1!");
|
||
|
|
std::process::exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
print_hanoi(n);
|
||
|
|
}
|