#615940 (Rust) No.1237 EXP Multiple!

• 問題: No.1237 EXP Multiple!
• ユーザー: manta1130
• 提出日時: 2021-02-10 21:07:18
• 言語: Rust (1.77.0 + proconio)
• 結果: AC
• 実行時間: 11 ms / 2,000 ms
• コード長: 4,887 bytes
• コンパイル時間: 12,691 ms
• コンパイル使用メモリ: 384,072 KB
• 実行使用メモリ: 6,392 KB
• 最終ジャッジ日時: 2024-07-08 08:26:35
• 合計ジャッジ時間: 14,467 ms
• ジャッジサーバーID （参考情報）: judge3 / judge1

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	8 ms; 5,376 KB
testcase_02	AC	10 ms; 6,224 KB
testcase_03	AC	11 ms; 6,392 KB
testcase_04	AC	9 ms; 6,272 KB
testcase_05	AC	5 ms; 5,376 KB
testcase_06	AC	5 ms; 5,376 KB
testcase_07	AC	4 ms; 5,376 KB
testcase_08	AC	5 ms; 5,376 KB
testcase_09	AC	5 ms; 5,376 KB
testcase_10	AC	5 ms; 5,376 KB
testcase_11	AC	5 ms; 5,376 KB
testcase_12	AC	5 ms; 5,376 KB
testcase_13	AC	5 ms; 5,376 KB
testcase_14	AC	5 ms; 5,376 KB
testcase_15	AC	5 ms; 5,376 KB
testcase_16	AC	5 ms; 5,376 KB
testcase_17	AC	5 ms; 5,376 KB
testcase_18	AC	5 ms; 5,376 KB
testcase_19	AC	5 ms; 5,376 KB

コンパイルメッセージ

warning: unused attribute `macro_export`
  --> src/main.rs:47:5
   |
47 |     #[macro_export]
   |     ^^^^^^^^^^^^^^^
   |
note: the built-in attribute `macro_export` will be ignored, since it's applied to the macro invocation `thread_local`
  --> src/main.rs:48:5
   |
48 |     thread_local! {
   |     ^^^^^^^^^^^^
   = note: `#[warn(unused_attributes)]` on by default

warning: unused variable: `out`
  --> src/main.rs:16:13
   |
16 |     let mut out = BufWriter::new(out.lock());
   |             ^^^ help: if this is intentional, prefix it with an underscore: `_out`
   |
   = note: `#[warn(unused_variables)]` on by default

warning: unused variable: `n`
  --> src/main.rs:19:9
   |
19 |         n:usize,
   |         ^
   |
help: `n` is captured in macro and introduced a unused variable
  --> src/main.rs:67:17
   |
18 | /     inputv! {
19 | |         n:usize,
20 | |     }
   | |_____- in this macro invocation
...
67 |               let $x: $t = buf_split_result.parse().unwrap();
   |                   ^^
   = note: this warning originates in the macro `input_internal` which comes from the expansion of the macro `inputv` (in Nightly builds, run with -Z macro-backtrace for more info)

warning: variable does not need to be mutable
  --> src/main.rs:16:9
   |
16 |     let mut out = BufWriter::new(out.lock());
   |         ----^^^
   |         |
   |         help: remove this `mut`
   |
   = note: `#[warn(unused_mut)]` on by default

ソースコード

#[allow(unused_imports)]
use std::io::{stdout, BufWriter, Write};

fn factorial(a: usize) -> usize {
    match a {
        0 => 0,
        1 => 1,
        2 => 4,
        3 => 729,
        _ => 9999999999999,
    }
}

fn main() {
    let out = stdout();
    let mut out = BufWriter::new(out.lock());

    inputv! {
        n:usize,
    }
    let a = input_vector::<usize>();
    if *a.iter().min().unwrap() == 0 {
        println!("-1");
        return;
    }
    let mut buf = 1;
    for i in a {
        buf *= factorial(i);
        if buf > 1000000007 {
            println!("1000000007");
            return;
        }
    }
    println!("{}", 1000000007 % buf);
}

//https://github.com/manta1130/competitive-template-rs

use input::*;

pub mod input {
    use std::cell::RefCell;
    use std::io;
    pub const SPLIT_DELIMITER: char = ' ';
    pub use std::io::prelude::*;

    #[macro_export]
    thread_local! {
        pub static INPUT_BUFFER:RefCell<std::collections::VecDeque<String>>=RefCell::new(std::collections::VecDeque::new());
    }

    #[macro_export]
    macro_rules! input_internal {
        ($x:ident : $t:ty) => {
            INPUT_BUFFER.with(|p| {
                if p.borrow().len() == 0 {
                    let temp_str = input_line_str();
                    let mut split_result_iter = temp_str
                        .split(SPLIT_DELIMITER)
                        .map(|q| q.to_string())
                        .collect::<std::collections::VecDeque<_>>();
                    p.borrow_mut().append(&mut split_result_iter)
                }
            });
            let mut buf_split_result = String::new();
            INPUT_BUFFER.with(|p| buf_split_result = p.borrow_mut().pop_front().unwrap());
            let $x: $t = buf_split_result.parse().unwrap();
        };
        (mut $x:ident : $t:ty) => {
            INPUT_BUFFER.with(|p| {
                if p.borrow().len() == 0 {
                    let temp_str = input_line_str();
                    let mut split_result_iter = temp_str
                        .split(SPLIT_DELIMITER)
                        .map(|q| q.to_string())
                        .collect::<std::collections::VecDeque<_>>();
                    p.borrow_mut().append(&mut split_result_iter)
                }
            });
            let mut buf_split_result = String::new();
            INPUT_BUFFER.with(|p| buf_split_result = p.borrow_mut().pop_front().unwrap());
            let mut $x: $t = buf_split_result.parse().unwrap();
        };
    }

    #[macro_export]
    macro_rules! inputv {
    ($i:ident : $t:ty) => {
        input_internal!{$i : $t}
    };
    (mut $i:ident : $t:ty) => {
        input_internal!{mut $i : $t}
    };
    ($i:ident : $t:ty $(,)*) => {
            input_internal!{$i : $t}
    };
    (mut $i:ident : $t:ty $(,)*) => {
            input_internal!{mut $i : $t}
    };
    (mut $i:ident : $t:ty,$($q:tt)*) => {
            input_internal!{mut $i : $t}
            inputv!{$($q)*}
    };
    ($i:ident : $t:ty,$($q:tt)*) => {
            input_internal!{$i : $t}
            inputv!{$($q)*}
    };
}

    pub fn input_all() {
        INPUT_BUFFER.with(|p| {
            if p.borrow().len() == 0 {
                let mut temp_str = String::new();
                std::io::stdin().read_to_string(&mut temp_str).unwrap();
                let mut split_result_iter = temp_str
                    .split_whitespace()
                    .map(|q| q.to_string())
                    .collect::<std::collections::VecDeque<_>>();
                p.borrow_mut().append(&mut split_result_iter)
            }
        });
    }

    pub fn input_line_str() -> String {
        let mut s = String::new();
        io::stdin().read_line(&mut s).unwrap();
        s.trim().to_string()
    }

    #[allow(clippy::match_wild_err_arm)]
    pub fn input_vector<T>() -> Vec<T>
    where
        T: std::str::FromStr,
    {
        let mut v: Vec<T> = Vec::new();

        let s = input_line_str();
        let split_result = s.split(SPLIT_DELIMITER);
        for z in split_result {
            let buf = match z.parse() {
                Ok(r) => r,
                Err(_) => panic!("Parse Error",),
            };
            v.push(buf);
        }
        v
    }

    #[allow(clippy::match_wild_err_arm)]
    pub fn input_vector_row<T>(n: usize) -> Vec<T>
    where
        T: std::str::FromStr,
    {
        let mut v = Vec::with_capacity(n);
        for _ in 0..n {
            let buf = match input_line_str().parse() {
                Ok(r) => r,
                Err(_) => panic!("Parse Error",),
            };
            v.push(buf);
        }
        v
    }

    pub trait ToCharVec {
        fn to_charvec(&self) -> Vec<char>;
    }

    impl ToCharVec for String {
        fn to_charvec(&self) -> Vec<char> {
            self.to_string().chars().collect::<Vec<_>>()
        }
    }
}