結果

問題 No.1004 サイコロの実装 (2)
ユーザー koba-e964
提出日時 2020-03-06 23:23:09
言語 Rust
(1.83.0 + proconio)
結果
WA  
実行時間 -
コード長 2,422 bytes
コンパイル時間 13,066 ms
コンパイル使用メモリ 376,536 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-10-14 09:53:06
合計ジャッジ時間 14,383 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 6 WA * 32
権限があれば一括ダウンロードができます
コンパイルメッセージ
warning: unused variable: `a`
  --> src/main.rs:76:9
   |
76 |         a: i64, b: i64, x0: i64, n: i64,
   |         ^
   |
help: `a` is captured in macro and introduced a unused variable
  --> src/main.rs:28:13
   |
28 |           let $var = read_value!($next, $t);
   |               ^^^^
...
75 | /     input! {
76 | |         a: i64, b: i64, x0: i64, n: i64,
77 | |     }
   | |_____- in this macro invocation
   = note: `#[warn(unused_variables)]` on by default
   = note: this warning originates in the macro `input_inner` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info)

warning: unused variable: `b`
  --> src/main.rs:76:17
   |
76 |         a: i64, b: i64, x0: i64, n: i64,
   |                 ^
   |
help: `b` is captured in macro and introduced a unused variable
  --> src/main.rs:28:13
   |
28 |           let $var = read_value!($next, $t);
   |               ^^^^
...
75 | /     input! {
76 | |         a: i64, b: i64, x0: i64, n: i64,
77 | |     }
   | |_____- in this macro invocation
   = note: this warning originates in the macro `input_inner` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info)

ソースコード

diff # 

#[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);
        (0..len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    }};

    ($next:expr, $t:ty) => {
        $next().parse::<$t>().expect("Parse error")
    };
}

#[allow(unused)]
macro_rules! debug {
    ($($format:tt)*) => (write!(std::io::stderr(), $($format)*).unwrap());
}
#[allow(unused)]
macro_rules! debugln {
    ($($format:tt)*) => (writeln!(std::io::stderr(), $($format)*).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! {
        a: i64, b: i64, x0: i64, n: i64,
    }
    let n1 = n - n / 2;
    let n2 = n / 2;
    puts!("{} {}\n", if x0 % 2 == 0 { n1 / 2 } else { 0 },
          if x0 % 2 == 1 { n2 / 2 } else { 0 });
}

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();
}
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