結果

問題 No.8078 Very Simple Traveling Salesman Problem
ユーザー Hideyuki Tanaka
提出日時 2021-04-01 22:04:58
言語 Rust
(1.83.0 + proconio)
結果
AC  
実行時間 21 ms / 2,000 ms
コード長 1,546 bytes
コンパイル時間 13,051 ms
コンパイル使用メモリ 402,588 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-12-21 06:23:27
合計ジャッジ時間 14,276 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge5
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 * 1
other AC * 10
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 imports: `max`, `min`
  --> src/main.rs:60:16
   |
60 | use std::cmp::{max, min};
   |                ^^^  ^^^
   |
   = note: `#[warn(unused_imports)]` on by default

warning: unused variable: `es`
  --> src/main.rs:73:9
   |
73 |         es: [(i64, i64, i64); m],
   |         ^^
   |
help: `es` is captured in macro and introduced a unused variable
  --> src/main.rs:33:13
   |
33 |           let var=readvalue!(var = read_value!(sc, $t);
   |               ^^^^
...
70 | /     input! {
71 | |         sc,
72 | |         n: usize, m: usize,
73 | |         es: [(i64, i64, i64); m],
74 | |     }
   | |_____- 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)

ソースコード

diff #
プレゼンテーションモードにする

struct Scanner {
    bytes: std::io::Bytes<std::io::BufReader<std::io::Stdin>>,
}
impl Scanner {
    fn new() -> Self {
        Self {
            bytes: std::io::Read::bytes(std::io::BufReader::new(std::io::stdin())),
        }
    }
    fn next(&mut self) -> String {
        self.bytes
            .by_ref()
            .map(|r| r.unwrap() as char)
            .skip_while(|c| c.is_whitespace())
            .take_while(|c| !c.is_whitespace())
            .collect()
    }
}
macro_rules! input {
    ($sc:expr, $($r:tt)*) => {
        input_inner!{$sc, $($r)*}
    };
}
macro_rules! input_inner {
    ($sc:expr) => {};
    ($sc:expr, ) => {};
    ($sc:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($sc, $t);
        input_inner!{$sc $($r)*}
    };
}
macro_rules! read_value {
    ($sc:expr, ( $($t:tt),* )) => {
        ( $(read_value!($sc, $t)),* )
    };
    ($sc:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($sc, $t)).collect::<Vec<_>>()
    };
    ($sc:expr, Chars) => {
        read_value!($sc, String).chars().collect::<Vec<char>>()
    };
    ($sc:expr, Usize1) => {
        read_value!($sc, usize) - 1
    };
    ($sc:expr, $t:ty) => {
        $sc.next().parse::<$t>().expect("Parse error")
    };
}
use std::cmp::{max, min};
fn main() {
    let mut sc = Scanner::new();
    let ans = solve(&mut sc);
    println!("{}", ans);
}
fn solve(sc: &mut Scanner) -> usize {
    input! {
        sc,
        n: usize, m: usize,
        es: [(i64, i64, i64); m],
    }
    n
}
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