結果
| 問題 |
No.472 平均順位
|
| コンテスト | |
| 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);
}