#904523 (Rust) No.2469 Umbrella Queries

• 問題: No.2469 Umbrella Queries
• ユーザー: akakimidori
• 提出日時: 2023-08-17 16:02:34
• 言語: Rust (1.83.0 + proconio)
• 結果: AC
• 実行時間: 12 ms / 2,000 ms
• コード長: 1,868 bytes
• コンパイル時間: 12,699 ms
• コンパイル使用メモリ: 385,584 KB
• 実行使用メモリ: 6,816 KB
• 最終ジャッジ日時: 2024-07-04 13:48:41
• 合計ジャッジ時間: 13,465 ms
• ジャッジサーバーID （参考情報）: judge5 / judge4

ファイルパターン	結果
sample	AC * 1
other	AC * 1

ソースコード

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use std::io::Write;
fn run() {
    input! {
        t: usize,
        ask: [u64; t],
    }
    let out = std::io::stdout();
    let mut out = std::io::BufWriter::new(out.lock());
    for n in ask {
        let ans = if n % 2 == 1 {
            0
        } else {
            let q = n / 2;
            q * 2 * (q - 1)
        };
        writeln!(out, "{}", ans).ok();
    };
}
fn main() {
    run();
}
// ---------- begin input macro ----------
// reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
#[macro_export]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}
#[macro_export]
macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};
    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}
#[macro_export]
macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };
    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };
    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };
    ($iter:expr, bytes) => {
        read_value!($iter, String).bytes().collect::<Vec<u8>>()
    };
    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };
    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}
// ---------- end input macro ----------
 
 
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