結果

問題 No.764 浮動点
ユーザー koba-e964koba-e964
提出日時 2023-07-26 00:32:33
言語 Rust
(1.77.0)
結果
WA  
実行時間 -
コード長 3,202 bytes
コンパイル時間 1,721 ms
コンパイル使用メモリ 169,244 KB
実行使用メモリ 6,948 KB
最終ジャッジ日時 2024-04-10 15:23:56
合計ジャッジ時間 3,019 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge5
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 WA -
testcase_01 AC 1 ms
6,944 KB
testcase_02 AC 1 ms
6,940 KB
testcase_03 WA -
testcase_04 AC 11 ms
6,940 KB
testcase_05 WA -
testcase_06 WA -
testcase_07 WA -
testcase_08 AC 12 ms
6,940 KB
testcase_09 WA -
testcase_10 AC 13 ms
6,944 KB
testcase_11 WA -
testcase_12 AC 13 ms
6,944 KB
testcase_13 AC 14 ms
6,940 KB
testcase_14 WA -
testcase_15 WA -
testcase_16 WA -
testcase_17 WA -
testcase_18 AC 14 ms
6,944 KB
testcase_19 AC 14 ms
6,940 KB
testcase_20 WA -
testcase_21 WA -
testcase_22 AC 14 ms
6,944 KB
testcase_23 AC 14 ms
6,940 KB
testcase_24 WA -
testcase_25 WA -
権限があれば一括ダウンロードができます

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);
        read_value!($next, [$t; len])
    }};
    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
}

trait Change { fn chmax(&mut self, x: Self); fn chmin(&mut self, x: Self); }
impl<T: PartialOrd> Change for T {
    fn chmax(&mut self, x: T) { if *self < x { *self = x; } }
    fn chmin(&mut self, x: T) { if *self > x { *self = x; } }
}

// Find the area of x^2 + y^2 <= a^2, (x-l)^2 + y^2 <= b^2
fn f(a: i64, b: i64, l: i64) -> f64 {
    if a + b <= l {
        return 0.0;
    }
    let pi = std::f64::consts::PI;
    if a + l <= b {
        return pi * (a * a) as f64;
    }
    if b + l <= a {
        return pi * (b * b) as f64;
    }
    let x0 = (l * l + a * a - b * b) as f64 / (2 * l) as f64;
    let height = (a as f64 * a as f64 - x0 * x0).sqrt();
    let mut ans = l as f64 * height;
    ans = -ans;
    let adeg = height.atan2(x0);
    ans += pi * adeg * a as f64 * a as f64;
    let bdeg = height.atan2(l as f64 - x0);
    ans += pi * bdeg * b as f64 * b as f64;
    ans
}

fn main() {
    let out = std::io::stdout();
    let mut out = BufWriter::new(out.lock());
    macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););}
    input! {
        n: usize,
        suml: i64,
        l: [i64; n + 1],
    }
    let mut lft = vec![(0, 0); n];
    let mut ma = 0;
    let mut sum = 0;
    for i in 1..n + 1 {
        sum += l[i - 1];
        ma = max(ma, l[i - 1]);
        lft[i - 1] = (max(0, 2 * ma - sum), sum);
    }
    let mut rgt = vec![(0, 0); n];
    let mut ma = 0;
    let mut sum = 0;
    for i in (1..n + 1).rev() {
        sum += l[i];
        ma = max(ma, l[i]);
        rgt[i - 1] = (max(0, 2 * ma - sum), sum);
    }
    eprintln!("{:?} {:?}", lft, rgt);
    for i in 0..n {
        let (a, b) = lft[i];
        let (c, d) = rgt[i];
        puts!("{}\n", f(b, d, suml) - f(a, d, suml) - f(b, c, suml) + f(a, c, suml));
    }
}
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