結果
問題 | No.740 幻の木 |
ユーザー |
![]() |
提出日時 | 2018-10-05 23:03:30 |
言語 | Rust (1.83.0 + proconio) |
結果 |
CE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 7,316 bytes |
コンパイル時間 | 12,582 ms |
コンパイル使用メモリ | 386,532 KB |
最終ジャッジ日時 | 2024-11-14 20:39:43 |
合計ジャッジ時間 | 13,276 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。(リジャッジ後のコンパイルエラーは公開されます)
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
コンパイルメッセージ
error[E0432]: unresolved import `io` --> src/main.rs:225:9 | 225 | use io::FromBytes; | ^^ help: a similar path exists: `crate::io` | = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html> error[E0432]: unresolved import `misc` --> src/main.rs:146:9 | 146 | use misc::ByteChar; | ^^^^ help: a similar path exists: `crate::misc` | = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html> error[E0432]: unresolved import `misc` --> src/main.rs:178:9 | 178 | use misc::{ByteChar, ByteString}; | ^^^^ help: a similar path exists: `crate::misc` | = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html> For more information about this error, try `rustc --explain E0432`. error: could not compile `main` (bin "main") due to 3 previous errors
ソースコード
fn solve<R: BufRead, W: Write>(_reader: R, _writer: &mut W) {let mut _scanner = Scanner::new(_reader);#[allow(unused_macros)]macro_rules! scan {($T:ty) => {_scanner.next::<$T>().unwrap()};($($T:ty),+) => {($(scan!($T)),+)};($($T:ty),+; $n:expr $(; $m:expr)*) => {{let mut vec = Vec::with_capacity($n);for _ in 0..$n {vec.push(scan!($($T),+ $(; $m)*));}vec}};}#[allow(unused_macros)]macro_rules! scan_iter {($T:ty; $n:expr) => {_scanner.take::<$T>($n).map(|x| x.unwrap())};}#[allow(unused_macros)]macro_rules! print {($fmt:expr) => {write!(_writer, $fmt).unwrap()};($fmt:expr, $($arg:tt)*) => {write!(_writer, $fmt, $($arg)*).unwrap()};}#[allow(unused_macros)]macro_rules! println {($fmt:expr) => {writeln!(_writer, $fmt).unwrap()};($fmt:expr, $($arg:tt)*) => {writeln!(_writer, $fmt, $($arg)*).unwrap()};}#[allow(unused_macros)]macro_rules! eprint {($fmt:expr) => {#[cfg(debug_assertions)]write!(::std::io::stderr(), $fmt).unwrap()};($fmt:expr, $($arg:tt)*) => {#[cfg(debug_assertions)]write!(::std::io::stderr(), $fmt, $($arg)*).unwrap()};}#[allow(unused_macros)]macro_rules! eprintln {($fmt:expr) => {#[cfg(debug_assertions)]writeln!(::std::io::stderr(), $fmt).unwrap()};($fmt:expr, $($arg:tt)*) => {#[cfg(debug_assertions)]writeln!(::std::io::stderr(), $fmt, $($arg)*).unwrap()};}#[allow(unused_macros)]macro_rules! dump {($($x:expr),+) => {eprint!("[{}:{}] ", file!(), line!());eprintln!(concat!($(stringify!($x), " = {:?}; "),+), $($x),+);};}let (n, m, p, q) = scan!(usize, usize, usize, usize);let p = p - 1;let mut c = n;for i in 0.. {c = c.saturating_sub(if p <= i % 12 && i % 12 < p + q { 2 * m } else { m });if c == 0 {println!("{}", i + 1);return;}dump!(i, c);}}const CUSTOM_STACK_SIZE_MEBIBYTES: Option<usize> = None;fn main() {if let Some(stack_size_mebibytes) = CUSTOM_STACK_SIZE_MEBIBYTES {let builder = thread::Builder::new().name("exec_solver".to_string()).stack_size(stack_size_mebibytes * 1024 * 1024);builder.spawn(exec_solver).unwrap().join().unwrap();} else {exec_solver();}}fn exec_solver() {let stdin = stdin();let stdout = stdout();#[cfg(debug_assertions)]let mut writer = stdout.lock();#[cfg(not(debug_assertions))]let mut writer = ::std::io::BufWriter::new(stdout.lock());solve(stdin.lock(), &mut writer);writer.flush().unwrap();}use io::Scanner;use std::io::{stdin, stdout, BufRead, Write};use std::thread;pub mod misc {pub use self::byte_char::*;pub use self::byte_string::*;mod byte_char {use std::fmt::{self, Debug, Display, Formatter};#[derive(Clone, Copy, PartialOrd, Ord, PartialEq, Eq, Hash)]pub struct ByteChar(pub u8);impl Debug for ByteChar {fn fmt(&self, f: &mut Formatter) -> fmt::Result {write!(f, "b\'{}\'", self.0 as char)}}impl Display for ByteChar {fn fmt(&self, f: &mut Formatter) -> fmt::Result {write!(f, "{}", self.0 as char)}}}mod byte_string {use misc::ByteChar;use std::fmt::{self, Debug, Display, Formatter};#[derive(Clone, PartialOrd, Ord, PartialEq, Eq, Hash)]pub struct ByteString(pub Vec<ByteChar>);impl Debug for ByteString {fn fmt(&self, f: &mut Formatter) -> fmt::Result {write!(f, "b\"")?;for &c in &self.0 {write!(f, "{}", c.0 as char)?;}write!(f, "b\"")}}impl Display for ByteString {fn fmt(&self, f: &mut Formatter) -> fmt::Result {for &c in &self.0 {write!(f, "{}", c)?;}Ok(())}}}}pub mod io {pub use self::from_bytes::FromBytes;pub use self::scanner::Scanner;mod from_bytes {use misc::{ByteChar, ByteString};use std::str::{self, FromStr};#[derive(Debug)]pub struct FromBytesError;pub trait FromBytes: Sized {type Err;fn from_bytes(bytes: &[u8]) -> Result<Self, Self::Err>;}impl FromBytes for ByteChar {type Err = FromBytesError;fn from_bytes(bytes: &[u8]) -> Result<Self, Self::Err> {if bytes.len() == 1 {Ok(ByteChar(*unsafe { bytes.get_unchecked(0) }))} else {Err(FromBytesError)}}}impl FromBytes for ByteString {type Err = FromBytesError;fn from_bytes(bytes: &[u8]) -> Result<Self, Self::Err> {Ok(ByteString(bytes.iter().cloned().map(ByteChar).collect()))}}impl<T: FromStr> FromBytes for T {type Err = T::Err;fn from_bytes(bytes: &[u8]) -> Result<Self, Self::Err> {let s = if cfg!(debug_assertions) {str::from_utf8(bytes).unwrap()} else {unsafe { str::from_utf8_unchecked(bytes) }};T::from_str(s)}}}mod scanner {use io::FromBytes;use std::io::BufRead;use std::marker::PhantomData;pub struct Scanner<R> {reader: R,buffer: Vec<u8>,position: usize,}impl<R: BufRead> Scanner<R> {pub fn new(reader: R) -> Self {Scanner {reader: reader,buffer: vec![],position: 0,}}pub fn next<T: FromBytes>(&mut self) -> Result<T, T::Err> {FromBytes::from_bytes(self.next_bytes().unwrap_or(&[]))}pub fn take<T: FromBytes>(&mut self, n: usize) -> Take<R, T> {Take {scanner: self,n: n,_marker: PhantomData,}}pub fn next_bytes(&mut self) -> Option<&[u8]> {if self.buffer.is_empty() {self.read_line();}loop {match self.buffer.get(self.position) {Some(&b' ') => self.position += 1,Some(&b'\n') => self.read_line(),Some(_) => break,None => return None,}}let start = self.position;loop {match self.buffer.get(self.position) {Some(&b' ') | Some(&b'\n') | None => break,Some(_) => self.position += 1,}}Some(&self.buffer[start..self.position])}fn read_line(&mut self) {self.position = 0;self.buffer.clear();self.reader.read_until(b'\n', &mut self.buffer).unwrap();}}pub struct Take<'a, R: 'a, T> {scanner: &'a mut Scanner<R>,n: usize,_marker: PhantomData<fn() -> T>,}impl<'a, R: BufRead, T: FromBytes> Iterator for Take<'a, R, T> {type Item = Result<T, T::Err>;fn next(&mut self) -> Option<Self::Item> {if self.n > 0 {self.n -= 1;Some(self.scanner.next())} else {None}}fn size_hint(&self) -> (usize, Option<usize>) {(self.n, Some(self.n))}}impl<'a, R: BufRead, T: FromBytes> ExactSizeIterator for Take<'a, R, T> {}}}