結果

問題 No.2373 wa, wo, n
ユーザー haihamabossuhaihamabossu
提出日時 2023-07-07 21:48:42
言語 Rust
(1.83.0 + proconio)
結果
AC  
実行時間 5 ms / 2,000 ms
コード長 1,946 bytes
コンパイル時間 27,613 ms
コンパイル使用メモリ 378,032 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-07-21 17:39:20
合計ジャッジ時間 13,449 ms
ジャッジサーバーID
(参考情報)
judge2 / judge4
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 4
other AC * 39
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 #
プレゼンテーションモードにする

pub mod scanner {
pub struct Scanner {
buf: Vec<String>,
}
impl Scanner {
pub fn new() -> Self {
Self { buf: vec![] }
}
pub fn new_from(source: &str) -> Self {
let source = String::from(source);
let buf = Self::split(source);
Self { buf }
}
pub fn next<T: std::str::FromStr>(&mut self) -> T {
loop {
if let Some(x) = self.buf.pop() {
return x.parse().ok().expect("");
}
let mut source = String::new();
std::io::stdin().read_line(&mut source).expect("");
self.buf = Self::split(source);
}
}
fn split(source: String) -> Vec<String> {
source
.split_whitespace()
.rev()
.map(String::from)
.collect::<Vec<_>>()
}
}
}
use crate::scanner::Scanner;
use std::io::Write;
fn main() {
let mut scanner = Scanner::new();
let out = std::io::stdout();
let mut out = std::io::BufWriter::new(out.lock());
let t: usize = 1;
for _ in 0..t {
solve(&mut scanner, &mut out);
}
}
fn solve(scanner: &mut Scanner, out: &mut std::io::BufWriter<std::io::StdoutLock>) {
let n: usize = scanner.next();
let mut s: Vec<char> = scanner.next::<String>().chars().map(|c| c).collect();
s.push('$');
let mut dp = vec![false; n + 10];
dp[0] = true;
for i in 0..n {
if dp[i] {
if s[i] == 'n' || s[i] == '?' {
dp[i + 1] = true;
}
if (s[i] == 'w' || s[i] == '?')
&& (s[i + 1] == 'a' || s[i + 1] == 'o' || s[i + 1] == '?')
{
dp[i + 2] = true;
}
}
}
if dp[n] {
writeln!(out, "Yes").unwrap();
} else {
writeln!(out, "No").unwrap();
}
}
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