main.rs

use std::io::{stdout, BufWriter, Write};
use rand::Rng;

const DDSK: i32 = 0b011101110111;
const MASK: i32 = 0b111111111111;

fn main() {
    let ddsk = ["ドド", "スコ"];
    let mut rng = rand::thread_rng();

    let mut buffer = 0;
    let mut out = BufWriter::new(stdout().lock());
    while buffer != DDSK {
        let index = rng.gen_range(0b0..ddsk.len());
        write!(out, "{}", ddsk[index]).unwrap();
        buffer = (buffer << 1) & MASK | index as i32;
    }
    writeln!(out, "ラブ注入♡").unwrap();
}