結果
問題 | No.475 最終日 - Writerの怠慢 |
ユーザー | hatoo |
提出日時 | 2017-10-19 13:27:14 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 12 ms / 2,000 ms |
コード長 | 3,057 bytes |
コンパイル時間 | 12,536 ms |
コンパイル使用メモリ | 402,668 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-11-21 07:34:27 |
合計ジャッジ時間 | 14,104 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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 | AC | 1 ms
6,816 KB |
testcase_01 | AC | 1 ms
6,820 KB |
testcase_02 | AC | 1 ms
6,820 KB |
testcase_03 | AC | 2 ms
6,816 KB |
testcase_04 | AC | 12 ms
6,816 KB |
testcase_05 | AC | 12 ms
6,820 KB |
testcase_06 | AC | 12 ms
6,816 KB |
testcase_07 | AC | 12 ms
6,816 KB |
testcase_08 | AC | 12 ms
6,820 KB |
testcase_09 | AC | 12 ms
6,820 KB |
testcase_10 | AC | 12 ms
6,816 KB |
testcase_11 | AC | 12 ms
6,816 KB |
testcase_12 | AC | 5 ms
6,820 KB |
testcase_13 | AC | 10 ms
6,816 KB |
testcase_14 | AC | 1 ms
6,816 KB |
コンパイルメッセージ
warning: unused variable: `x` --> src/main.rs:115:20 | 115 | .map(|(r, &x)| { | ^ help: if this is intentional, prefix it with an underscore: `_x` | = note: `#[warn(unused_variables)]` on by default
ソースコード
#[allow(unused_imports)] use std::cmp::{max, min, Ordering, Reverse}; #[allow(unused_imports)] use std::collections::{HashMap, HashSet}; mod util { use std::io::stdin; use std::str::FromStr; use std::fmt::Debug; #[allow(dead_code)] pub fn line() -> String { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); line.trim().to_string() } #[allow(dead_code)] pub fn get<T: FromStr>() -> T where <T as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); line.trim().parse().unwrap() } #[allow(dead_code)] pub fn gets<T: FromStr>() -> Vec<T> where <T as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); line.split_whitespace() .map(|t| t.parse().unwrap()) .collect() } #[allow(dead_code)] pub fn get2<T: FromStr, U: FromStr>() -> (T, U) where <T as FromStr>::Err: Debug, <U as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); let mut iter = line.split_whitespace(); ( iter.next().unwrap().parse().unwrap(), iter.next().unwrap().parse().unwrap(), ) } #[allow(dead_code)] pub fn get3<S: FromStr, T: FromStr, U: FromStr>() -> (S, T, U) where <S as FromStr>::Err: Debug, <T as FromStr>::Err: Debug, <U as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); let mut iter = line.split_whitespace(); ( iter.next().unwrap().parse().unwrap(), iter.next().unwrap().parse().unwrap(), iter.next().unwrap().parse().unwrap(), ) } } // std::cmp::Reverse doesn't have Clone. #[derive(Eq, PartialEq, Clone)] struct Rev<T>(pub T); impl<T: PartialOrd> PartialOrd for Rev<T> { fn partial_cmp(&self, other: &Rev<T>) -> Option<Ordering> { other.0.partial_cmp(&self.0) } } impl<T: Ord> Ord for Rev<T> { fn cmp(&self, other: &Rev<T>) -> Ordering { other.0.cmp(&self.0) } } #[allow(unused_macros)] macro_rules! debug { ($x: expr) => { println!("{}: {:?}", stringify!($x), $x) } } fn score(s: usize, rank: usize) -> usize { let rhs = 500 * s / (8 + 2 * rank); 50 * s + rhs } fn main() { let (n, s, id): (usize, usize, usize) = util::get3(); let mut a: Vec<usize> = util::gets(); let me = a[id] + 100 * s; a.remove(id); a.sort(); let m = n - 1; let mut i = 0; let ans = a.iter() .enumerate() .map(|(r, &x)| { while i < m && a[i] + score(s, r + 1) <= me { i += 1; } max(0, i as i64 - (r as i64)) as f64 / (m - r) as f64 }) .fold(1.0, |a, b| a * b); println!("{}", ans); }