rust.rs

fn main() {
	let target: uint = from_str(std::os::args()[1].as_slice()).unwrap();
	for line in std::io::stdin().lines() {
		let l = line.unwrap();
		let word = l.as_slice().trim();
		if word.len() != target { continue; }
		let mut chrs: Vec<char> = word.chars().collect();
		chrs.sort();
		chrs.dedup();
		if chrs.len() != target { continue; }
		let diff = chrs[chrs.len() - 1].to_ascii().to_byte() - chrs[0].to_ascii().to_byte();
		if diff != (target - 1) as u8 { continue; }
		print!("{}", l);
	}
}