#613706 (Rust) No.1373 Directed Operations

• 問題: No.1373 Directed Operations
• ユーザー: ikd
• 提出日時: 2021-02-05 22:06:17
• 言語: Rust (1.77.0 + proconio)
• 結果: AC
• 実行時間: 147 ms / 2,000 ms
• コード長: 2,475 bytes
• コンパイル時間: 12,540 ms
• コンパイル使用メモリ: 404,144 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-07-02 12:34:26
• 合計ジャッジ時間: 15,485 ms
• ジャッジサーバーID （参考情報）: judge4 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 5,248 KB
testcase_01	AC	1 ms; 5,376 KB
testcase_02	AC	130 ms; 5,376 KB
testcase_03	AC	5 ms; 5,376 KB
testcase_04	AC	6 ms; 5,376 KB
testcase_05	AC	1 ms; 5,376 KB
testcase_06	AC	143 ms; 5,376 KB
testcase_07	AC	4 ms; 5,376 KB
testcase_08	AC	17 ms; 5,376 KB
testcase_09	AC	20 ms; 5,376 KB
testcase_10	AC	18 ms; 5,376 KB
testcase_11	AC	5 ms; 5,376 KB
testcase_12	AC	17 ms; 5,376 KB
testcase_13	AC	3 ms; 5,376 KB
testcase_14	AC	146 ms; 5,376 KB
testcase_15	AC	126 ms; 5,376 KB
testcase_16	AC	147 ms; 5,376 KB
testcase_17	AC	104 ms; 5,376 KB
testcase_18	AC	60 ms; 5,376 KB
testcase_19	AC	58 ms; 5,376 KB
testcase_20	AC	81 ms; 5,376 KB

ソースコード

fn main() {
    let stdin = std::io::stdin();
    let mut rd = ProconReader::new(stdin.lock());

    let n: usize = rd.get();
    let a: Vec<usize> = rd.get_vec(n - 1);

    let mut ord: Vec<usize> = (0..(n - 1)).collect();
    ord.sort_by_key(|&i| a[i]);
    let mut ans = vec![0; n - 1];
    for (y, &i) in ord.iter().enumerate() {
        let y = y + 2;
        let a = a[i];
        if a >= y {
            println!("NO");
            return;
        }
        ans[i] = y - a;
    }
    println!("YES");
    for i in 0..(n - 1) {
        println!("{}", ans[i]);
    }
}

pub struct ProconReader<R> {
    r: R,
    l: String,
    i: usize,
}

impl<R: std::io::BufRead> ProconReader<R> {
    pub fn new(reader: R) -> Self {
        Self {
            r: reader,
            l: String::new(),
            i: 0,
        }
    }
    pub fn get<T>(&mut self) -> T
    where
        T: std::str::FromStr,
        <T as std::str::FromStr>::Err: std::fmt::Debug,
    {
        self.skip_blanks();
        assert!(self.i < self.l.len()); // remain some character
        assert_ne!(&self.l[self.i..=self.i], " ");
        let rest = &self.l[self.i..];
        let len = rest.find(' ').unwrap_or_else(|| rest.len());
        let val = rest[..len]
            .parse()
            .unwrap_or_else(|_| panic!("parse error `{}`", rest));
        self.i += len;
        val
    }
    fn skip_blanks(&mut self) {
        loop {
            match self.l[self.i..].find(|ch| ch != ' ') {
                Some(j) => {
                    self.i += j;
                    break;
                }
                None => {
                    self.l.clear();
                    self.i = 0;
                    let num_bytes = self
                        .r
                        .read_line(&mut self.l)
                        .unwrap_or_else(|_| panic!("invalid UTF-8"));
                    assert!(num_bytes > 0, "reached EOF :(");
                    self.l = self
                        .l
                        .trim_end_matches('\n')
                        .trim_end_matches('\r')
                        .to_string();
                }
            }
        }
    }
    pub fn get_vec<T>(&mut self, n: usize) -> Vec<T>
    where
        T: std::str::FromStr,
        <T as std::str::FromStr>::Err: std::fmt::Debug,
    {
        (0..n).map(|_| self.get()).collect()
    }

    pub fn get_chars(&mut self) -> Vec<char> {
        self.get::<String>().chars().collect()
    }
}