#713143 (Rust) No.1730 GCD on Blackboard in yukicoder

• 問題: No.1730 GCD on Blackboard in yukicoder
• ユーザー: koba-e964
• 提出日時: 2021-11-05 21:30:46
• 言語: Rust (1.83.0 + proconio)
• 結果: AC
• 実行時間: 96 ms / 2,000 ms
• コード長: 2,669 bytes
• コンパイル時間: 13,585 ms
• コンパイル使用メモリ: 378,544 KB
• 実行使用メモリ: 20,608 KB
• 最終ジャッジ日時: 2024-11-08 04:29:28
• 合計ジャッジ時間: 17,354 ms
• ジャッジサーバーID （参考情報）: judge1 / judge4

ファイルパターン	結果
sample	AC * 2
other	AC * 24

ソースコード

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#[allow(unused_imports)]
use std::cmp::*;
#[allow(unused_imports)]
use std::collections::*;
use std::io::{Write, BufWriter};
// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String{
            bytes.by_ref().map(|r|r.unwrap() as char)
                .skip_while(|c|c.is_whitespace())
                .take_while(|c|!c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}
macro_rules! input_inner {
    ($next:expr) => {};
    ($next:expr,) => {};
    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}
macro_rules! read_value {
    ($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) };
    ($next:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    };
    ($next:expr, chars) => {
        read_value!($next, String).chars().collect::<Vec<char>>()
    };
    ($next:expr, usize1) => (read_value!($next, usize) - 1);
    ($next:expr, [ $t:tt ]) => {{
        let len = read_value!($next, usize);
        read_value!($next, [$t; len])
    }};
    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
}
trait Change { fn chmax(&mut self, x: Self); fn chmin(&mut self, x: Self); }
impl<T: PartialOrd> Change for T {
    fn chmax(&mut self, x: T) { if *self < x { *self = x; } }
    fn chmin(&mut self, x: T) { if *self > x { *self = x; } }
}
fn main() {
    // In order to avoid potential stack overflow, spawn a new thread.
    let stack_size = 104_857_600; // 100 MB
    let thd = std::thread::Builder::new().stack_size(stack_size);
    thd.spawn(|| solve()).unwrap().join().unwrap();
}
fn solve() {
    let out = std::io::stdout();
    let mut out = BufWriter::new(out.lock());
    macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););}
    input! {
        n: usize,
        a: [usize; n],
    }
    const W: usize = 1_000_001;
    let mut f = vec![0; W];
    for &a in &a {
        f[a] += 1;
    }
    let mut div = vec![0; W];
    for i in 1..W {
        for j in 1..(W - 1) / i + 1 {
            div[i] += f[i * j];
        }
    }
    let mut ans = vec![0; n];
    for i in 1..W {
        let idx = n - div[i];
        if idx < n {
            ans[idx] = max(ans[idx], i);
        }
    }
    for i in 1..n {
        ans[i] = max(ans[i], ans[i - 1]);
    }
    for i in 0..n {
        puts!("{}\n", ans[i]);
    }
}
 
 
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