結果
問題 |
No.472 平均順位
|
ユーザー |
|
提出日時 | 2017-10-19 14:02:00 |
言語 | Rust (1.83.0 + proconio) |
結果 |
MLE
|
実行時間 | - |
コード長 | 3,048 bytes |
コンパイル時間 | 15,897 ms |
コンパイル使用メモリ | 404,240 KB |
実行使用メモリ | 588,416 KB |
最終ジャッジ日時 | 2024-11-21 07:34:52 |
合計ジャッジ時間 | 17,676 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 13 MLE * 3 |
ソースコード
#[allow(unused_imports)] use std::cmp::{max, min, Ordering}; #[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 main() { let (n, p): (usize, usize) = util::get2(); let abc: Vec<Vec<usize>> = (0..n).map(|_| util::gets()).collect(); let mut dp = vec![vec![usize::max_value() / 2; p + 1]; n + 1]; dp[0][0] = 0; for i in 1..n + 1 { let v = &abc[i - 1]; for k in 0..p + 1 { for r in 0..3 { if k >= r { dp[i][k] = min(dp[i][k], dp[i - 1][k - r] + v[r]) } } if k >= 3 { dp[i][k] = min(dp[i][k], dp[i - 1][k - 3] + 1); } } } println!("{}", dp[n][p] as f64 / n as f64); }