use std::time::SystemTime;
use std::iter::once;
 
// Xorshiftで乱数を計算
fn xorshift(seed: u64) -> u64 {
    [|x| x ^ (x << 13), |x| x ^ (x >> 7), |x| x ^ (x << 17)]
        .iter()
        .fold(seed, |acc, proc| proc(acc))
}
 
// 現在時刻(UNIXタイム)を取得
fn get_time_msec() -> u64 {
    let now = SystemTime::now();
    return match now.duration_since(SystemTime::UNIX_EPOCH) {
        Ok(t) => t.as_micros() as u64,
        Err(_) => 0,
    }
}
 
fn main() {
    // 現在時刻でシードを初期化
    let seed = get_time_msec() ^ 123456789;
    // 300個の乱数を表示
    (0..300)
        .fold(vec![seed],
              |v, _|
              once(xorshift(v[0])).chain(v).collect::<Vec<u64>>())
        .into_iter()
        .rev()
        .map(|x| x % 6 + 1)
        .for_each(|x| print!("{}, ", x));
    println!("")
}
 

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