結果
問題 |
No.489 株に挑戦
|
ユーザー |
|
提出日時 | 2017-10-18 02:20:13 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 12 ms / 1,000 ms |
コード長 | 3,213 bytes |
コンパイル時間 | 16,286 ms |
コンパイル使用メモリ | 377,820 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-19 23:56:24 |
合計ジャッジ時間 | 17,803 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 35 |
ソースコード
#[allow(unused_imports)] use std::cmp::{max, min, Ordering, Reverse}; #[allow(unused_imports)] use std::collections::{HashMap, HashSet, VecDeque}; 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(), ) } } #[allow(unused_macros)] macro_rules! debug { ($x: expr) => { println!("{}: {:?}", stringify!($x), $x) } } fn main() { let (n, d, k): (usize, usize, u64) = util::get3(); let xs: Vec<u64> = (0..n).map(|_| util::get()).collect(); let mut deq = VecDeque::new(); let mut r = 0; for _ in 0..d { while !deq.is_empty() && xs[deq.back().cloned().unwrap()] < xs[r] { deq.pop_back(); } deq.push_back(r); r += 1; } let ans = (0..n - 1) .filter_map(|i| { if r < n { while !deq.is_empty() && xs[deq.back().cloned().unwrap()] < xs[r] { deq.pop_back(); } deq.push_back(r); r += 1; } while deq.front().map(|&k| k <= i) == Some(true) { deq.pop_front(); } deq.front().and_then(|&k| if xs[k] > xs[i] { Some((xs[k] - xs[i], Reverse((i, k)))) } else { None }) }) .max(); if let Some((profit, Reverse((buy, sell)))) = ans { println!("{}", profit * k); println!("{} {}", buy, sell); } else { println!("0"); } }