結果

問題 No.2843 Birthday Present Struggle
コンテスト
ユーザー tomerun
提出日時 2024-09-29 18:54:45
言語 Rust
(1.83.0 + proconio)
結果
AC  
実行時間 1 ms / 2,000 ms
コード長 3,563 bytes
コンパイル時間 14,608 ms
コンパイル使用メモリ 379,936 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-09-29 18:55:03
合計ジャッジ時間 16,279 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
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 * 34
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: `n`
   --> src/main.rs:140:9
    |
140 |     let n = sc.i32();
    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
    |
    = note: `#[warn(unused_variables)]` on by default

warning: unused variable: `ax`
   --> src/main.rs:141:9
    |
141 |     let ax = sc.i32();
    |         ^^ help: if this is intentional, prefix it with an underscore: `_ax`

warning: unused variable: `ay`
   --> src/main.rs:142:9
    |
142 |     let ay = sc.i32();
    |         ^^ help: if this is intentional, prefix it with an underscore: `_ay`

warning: unused variable: `bx`
   --> src/main.rs:143:9
    |
143 |     let bx = sc.i32();
    |         ^^ help: if this is intentional, prefix it with an underscore: `_bx`

warning: unused variable: `by`
   --> src/main.rs:144:9
    |
144 |     let by = sc.i32();
    |         ^^ help: if this is intentional, prefix it with an underscore: `_by`

ソースコード

diff # 

#![allow(unused_imports)]
#![allow(dead_code)]
use std::collections::{HashMap, HashSet};
use std::io::{self, BufRead, BufReader, Read, Stdin};
use std::iter;
use std::mem;
use std::str::FromStr;
use std::string::String;

#[derive(Debug)]
pub struct Scanner<R> {
    reader: BufReader<R>,
}

fn scanner() -> Scanner<Stdin> {
    Scanner::new(io::stdin())
}

impl<R: io::Read> Scanner<R> {
    pub fn new(read: R) -> Scanner<R> {
        Scanner {
            reader: BufReader::new(read),
        }
    }

    pub fn next_str(&mut self) -> Option<String> {
        let mut buf = [0; 1];
        let size = self.reader.read(&mut buf).unwrap();
        if size == 0 {
            None
        } else {
            self.skip_whitespace(&mut buf)?;
            let mut v = vec![buf[0]];
            loop {
                let size = self.reader.read(&mut buf).unwrap();
                if size == 0 || buf[0].is_ascii_whitespace() {
                    break;
                }
                v.push(buf[0]);
            }
            Some(String::from_utf8(v).unwrap())
        }
    }

    pub fn next_line(&mut self) -> String {
        let mut line = String::new();
        self.reader.read_line(&mut line).unwrap();
        if let Some(s) = line.strip_suffix("\n") {
            s.to_string()
        } else {
            line
        }
    }

    pub fn vec<S: FromStr>(&mut self, size: i32) -> Vec<S> {
        let mut v: Vec<S> = vec![];
        for _ in 0..size {
            let token = self.next_str().unwrap();
            v.push(S::from_str(&token).ok().unwrap());
        }
        v
    }

    pub fn next_as<S: FromStr>(&mut self) -> Option<S> {
        let s = self.next_str()?;
        S::from_str(&s).ok()
    }

    pub fn str(&mut self) -> String {
        self.next_str().unwrap()
    }

    pub fn i32(&mut self) -> i32 {
        self.next_as::<i32>().unwrap()
    }

    pub fn u32(&mut self) -> u32 {
        self.next_as::<u32>().unwrap()
    }

    pub fn i64(&mut self) -> i64 {
        self.next_as::<i64>().unwrap()
    }

    pub fn u64(&mut self) -> u64 {
        self.next_as::<u64>().unwrap()
    }

    pub fn usize(&mut self) -> usize {
        self.next_as::<usize>().unwrap()
    }

    pub fn f32(&mut self) -> f32 {
        self.next_as::<f32>().unwrap()
    }

    pub fn f64(&mut self) -> f64 {
        self.next_as::<f64>().unwrap()
    }

    fn skip_whitespace(&mut self, mut buf: &mut [u8]) -> Option<u8> {
        loop {
            if !buf[0].is_ascii_whitespace() {
                return Some(buf[0]);
            }
            let size = self.reader.read(&mut buf).unwrap();
            if size == 0 {
                return None;
            }
        }
    }
}

fn yesno(b: bool) -> &'static str {
    if b {
        "Yes"
    } else {
        "No"
    }
}

// end of library

fn solve(len: &Vec<i64>, n: usize, k: i64) -> char {
    if n == 0 {
        return "yuusaan".chars().nth(k as usize).unwrap();
    }
    let prev = len[n as usize - 1];
    if k < prev {
        return solve(len, n - 1, k);
    }
    if k < prev + 5 {
        return "uusaa".chars().nth((k - prev) as usize).unwrap();
    }
    return solve(len, n - 1, k - prev - 5);
}

fn main() {
    let mut sc = scanner();
    let n = sc.i32();
    let ax = sc.i32();
    let ay = sc.i32();
    let bx = sc.i32();
    let by = sc.i32();
    let cx = sc.i32();
    let cy = sc.i32();
    println!("{}", 4);
    println!("{} {}", cx - 1, cy);
    println!("{} {}", cx + 1, cy);
    println!("{} {}", cx, cy - 1);
    println!("{} {}", cx, cy + 1);
}
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