結果
| 問題 | No.3679 なんかでっかい虫リターンズ |
| コンテスト | |
| ユーザー |
 elphe
|
| 提出日時 | 2026-06-19 23:54:22 |
| 言語 | Rust (1.97.1 + proconio + num + itertools) |
| 結果 |
AC
|
| 実行時間 | 0 ms / 2,000 ms |
| + 824µs | |
| コード長 | 16,244 bytes |
| 記録 | |
| コンパイル時間 | 525 ms |
| コンパイル使用メモリ | 199,956 KB |
| 実行使用メモリ | 9,724 KB |
| 最終ジャッジ日時 | 2026-09-05 12:31:17 |
| 合計ジャッジ時間 | 2,083 ms |
|
ジャッジサーバーID （参考情報） |
judge2_0 / judge1_1 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 17 |
ソースコード
fn main() {
// 標準入力を受け取る準備（ながたかな式）
let stdin = std::io::read_to_string(std::io::stdin().lock()).unwrap();
let mut stdin = stdin.split_ascii_whitespace();
unsafe {
read!(stdin -> (h: u8, w: u8, a: u8, b: u8, r1: u8, c1: u8, r2: u8, c2: u8, p: u8, q: u8)); // 標準入力から入力を受け取る
write!(output(solve(h, w, a, b, r1, c1, r2, c2, p, q))); // 答えを計算して出力する
}
}
// 解法2. 座標軸ごとに全探索
fn solve(_h: u8, _w: u8, a: u8, b: u8, r1: u8, c1: u8, r2: u8, c2: u8, p: u8, q: u8) -> u16 {
(r1..=r2)
.map(|u| a.abs_diff(u) as u16 + u.abs_diff(p) as u16)
.min()
.unwrap()
+ (c1..=c2)
.map(|v| b.abs_diff(v) as u16 + v.abs_diff(q) as u16)
.min()
.unwrap()
+ p.abs_diff(a) as u16
+ q.abs_diff(b) as u16
}
// 出力の形式を指定する関数
fn output(ans: u16) -> String {
format!("{}", ans)
}
// ----- 以下、自作ライブラリ -----
#[macro_export]
macro_rules! read {
($iter:ident -> ($v:ident : $t1:tt $([$($t2:tt)+] $({$($t3:tt)+})?)?)) => {
let $v = read_value!($iter -> $t1 $([$($t2)+] $({$($t3)+})? )?);
};
($iter:ident -> ($v:ident : $t1:tt $([$($t2:tt)+] $({$($t3:tt)+})?)? , $($r:tt)*)) => {
read!($iter -> ($v : $t1 $([$($t2)+] $({$($t3)+})?)?));
read!($iter -> ($($r)*));
};
}
#[macro_export]
macro_rules! read_value {
($source:ident -> ($($t1:tt $([$($t2:tt)+])?),+)) => {
( $(read_value!($source -> $t1 $([$($t2)+])?)),* )
};
($source:ident -> [ $t1:tt ; $len:expr ]) => {
{
let mut x: [::std::mem::MaybeUninit<$t1>; $len] = unsafe { ::std::mem::MaybeUninit::uninit().assume_init() };
for elem in x.iter_mut() {
unsafe {
elem.as_mut_ptr().write(read_value!($source -> $t1));
}
}
unsafe {
::std::mem::transmute::<[::std::mem::MaybeUninit<$t1>; $len], [$t1; $len]>(x)
}
}
};
($source:ident -> [ $c2:tt [ $t1:tt $(; $len2:expr)? ] ; $len1:expr ]) => {
{
let mut x: [::std::mem::MaybeUninit<$c2<$t1>>; $len1] = unsafe { ::std::mem::MaybeUninit::uninit().assume_init() };
for elem in x.iter_mut() {
elem.as_mut_ptr().write(read_value!($source -> $c2 [ $t1 $(; $len2)? ]));
}
::std::mem::transmute::<[::std::mem::MaybeUninit<$c2<$t1>>; $len1], [$c2<$t1>; $len1]>(x)
}
};
($source:ident -> $t1:tt[ $t2:tt $([$($t3:tt)+])? ; $len:expr ]) => {
(0..($len)).map(|_| read_value!($source -> $t2 $([$($t3)+])?)).collect::<$t1<_>>()
};
($source:ident -> $t1:tt[ $t2:tt $([$($t3:tt)+])? ]) => {
(0..(read_value!($source -> u32))).map(|_| read_value!($source -> $t2 $([$($t3)+])?)).collect::<$t1<_>>()
};
($source:ident -> $t1:tt[ ($($t2:tt),+) ; $len:expr ] { $($p1:pat => ($($pos:tt),*)),* }) => {
(0..($len)).map(|_| {
let mut v = ($($t2::default()),+);
v.0 = my_parser::parse_without_checking(($source).next().unwrap());
match v.0 {
$($p1 => {
$(v.$pos = my_parser::parse_without_checking(($source).next().unwrap()));*
}),*
_ => unreachable!(),
}
v
}).collect::<$t1<_>>()
};
($source:ident -> $t1:tt[ ($($t2:tt),+) ] { $($p1:pat => ($($pos:tt),*)),* }) => {
read_value!($source -> $t1[ ($($t2),+) ; read_value!($source -> u32) ] { $($p1 => ($($pos),*)),* })
};
($source:ident -> $t:ty) => {
my_parser::parse_without_checking::<$t>(($source).next().unwrap())
};
}
mod my_parser {
#[allow(unused)]
pub unsafe fn parse_without_checking<F: std::str::FromStr + Parsable>(target: &str) -> F {
unsafe { Parsable::from_str(target) }
}
pub trait Parsable {
unsafe fn from_str(s: &str) -> Self;
}
impl Parsable for String {
unsafe fn from_str(s: &str) -> Self {
Self::from(s)
}
}
impl Parsable for char {
unsafe fn from_str(s: &str) -> Self {
s.chars().next().unwrap()
}
}
macro_rules! parse_float {
($s:ident) => {{
let mut iter = $s.bytes().peekable();
let sign = match iter.peek().unwrap() {
b'-' => {
iter.next();
-1.0
}
b'+' => {
iter.next();
1.0
}
_ => 1.0,
};
let mut result = 0.0;
while let Some(cur) = iter.next() {
if cur == b'.' {
break;
}
result = result * 10.0 + (cur - b'0') as Self;
}
let mut digit = 1.0;
(result
+ iter
.map(|cur| {
digit *= 0.1;
digit * (cur - b'0') as Self
})
.sum::<Self>())
* sign
}};
}
impl Parsable for u8 {
unsafe fn from_str(s: &str) -> Self {
((((s.bytes().fold(0, |acc, x| (acc << 8) | (x as u32)) & 0x0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16) as Self
}
}
impl Parsable for u16 {
unsafe fn from_str(s: &str) -> Self {
((((((s.bytes().fold(0, |acc, x| (acc << 8) | (x as u64)) & 0x0f0f0f0f0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16)
& 0x0000ffff0000ffff)
.wrapping_mul((1 << 32) + 10000)
>> 32) as Self
}
}
impl Parsable for u32 {
unsafe fn from_str(s: &str) -> Self {
((((((((s.bytes().fold(0, |acc, x| (acc << 8) | (x as u128))
& 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff00ff00ff00ff00ff00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16)
& 0x0000ffff0000ffff0000ffff0000ffff)
.wrapping_mul((1 << 32) + 10000)
>> 32)
& 0x00000000ffffffff00000000ffffffff)
.wrapping_mul((1 << 64) + 100000000)
>> 64) as Self
}
}
impl Parsable for u64 {
unsafe fn from_str(s: &str) -> Self {
const POW_10: [u64; 17] = [
1,
10,
100,
1_000,
10_000,
100_000,
1_000_000,
10_000_000,
100_000_000,
1_000_000_000,
10_000_000_000,
100_000_000_000,
1_000_000_000_000,
10_000_000_000_000,
100_000_000_000_000,
1_000_000_000_000_000,
10_000_000_000_000_000,
];
s.as_bytes().chunks(16).fold(0, |acc, x| {
acc * POW_10[x.len()]
+ ((((((((x.into_iter().fold(0, |acc, &x| (acc << 8) | (x as u128))
& 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff00ff00ff00ff00ff00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16)
& 0x0000ffff0000ffff0000ffff0000ffff)
.wrapping_mul((1 << 32) + 10000)
>> 32)
& 0x00000000ffffffff00000000ffffffff)
.wrapping_mul((1 << 64) + 100000000)
>> 64) as Self
})
}
}
impl Parsable for u128 {
unsafe fn from_str(s: &str) -> Self {
const POW_10: [u128; 17] = [
1,
10,
100,
1_000,
10_000,
100_000,
1_000_000,
10_000_000,
100_000_000,
1_000_000_000,
10_000_000_000,
100_000_000_000,
1_000_000_000_000,
10_000_000_000_000,
100_000_000_000_000,
1_000_000_000_000_000,
10_000_000_000_000_000,
];
s.as_bytes().chunks(16).fold(0, |acc, x| {
acc * POW_10[x.len()]
+ ((((((((x.into_iter().fold(0, |acc, &x| (acc << 8) | (x as u128))
& 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff00ff00ff00ff00ff00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16)
& 0x0000ffff0000ffff0000ffff0000ffff)
.wrapping_mul((1 << 32) + 10000)
>> 32)
& 0x00000000ffffffff00000000ffffffff)
.wrapping_mul((1 << 64) + 100000000)
>> 64) as Self
})
}
}
impl Parsable for i8 {
unsafe fn from_str(s: &str) -> Self {
((((((s
.bytes()
.skip(match s.as_bytes()[0].is_ascii_digit() {
true => 0,
false => 1,
})
.fold(0, |acc, x| (acc << 8) | (x as u32))
& 0x0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16) as i32)
* match s.as_bytes()[0] == b'-' {
true => -1,
false => 1,
}) as Self
}
}
impl Parsable for i16 {
unsafe fn from_str(s: &str) -> Self {
((((((((s
.bytes()
.skip(match s.as_bytes()[0].is_ascii_digit() {
true => 0,
false => 1,
})
.fold(0, |acc, x| (acc << 8) | (x as u64))
& 0x0f0f0f0f0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16)
& 0x0000ffff0000ffff)
.wrapping_mul((1 << 32) + 10000)
>> 32) as i64)
* match s.as_bytes()[0] == b'-' {
true => -1,
false => 1,
}) as Self
}
}
impl Parsable for i32 {
unsafe fn from_str(s: &str) -> Self {
((((((((((s
.bytes()
.skip(match s.as_bytes()[0].is_ascii_digit() {
true => 0,
false => 1,
})
.fold(0, |acc, x| (acc << 8) | (x as u128))
& 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff00ff00ff00ff00ff00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16)
& 0x0000ffff0000ffff0000ffff0000ffff)
.wrapping_mul((1 << 32) + 10000)
>> 32)
& 0x00000000ffffffff00000000ffffffff)
.wrapping_mul((1 << 64) + 100000000)
>> 64) as i128)
* match s.as_bytes()[0] == b'-' {
true => -1,
false => 1,
}) as Self
}
}
impl Parsable for i64 {
unsafe fn from_str(s: &str) -> Self {
const POW_10: [u64; 17] = [
1,
10,
100,
1_000,
10_000,
100_000,
1_000_000,
10_000_000,
100_000_000,
1_000_000_000,
10_000_000_000,
100_000_000_000,
1_000_000_000_000,
10_000_000_000_000,
100_000_000_000_000,
1_000_000_000_000_000,
10_000_000_000_000_000,
];
let skip = match s.as_bytes()[0].is_ascii_digit() {
true => 0,
false => 1,
};
((s.as_bytes()[skip..].chunks(16).fold(0, |acc, x| {
acc * POW_10[x.len()]
+ ((((((((x.into_iter().fold(0, |acc, &x| (acc << 8) | (x as u128))
& 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff00ff00ff00ff00ff00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16)
& 0x0000ffff0000ffff0000ffff0000ffff)
.wrapping_mul((1 << 32) + 10000)
>> 32)
& 0x00000000ffffffff00000000ffffffff)
.wrapping_mul((1 << 64) + 100000000)
>> 64) as u64
}) as i64)
* match s.as_bytes()[0] == b'-' {
true => -1,
false => 1,
}) as Self
}
}
impl Parsable for i128 {
unsafe fn from_str(s: &str) -> Self {
const POW_10: [u128; 17] = [
1,
10,
100,
1_000,
10_000,
100_000,
1_000_000,
10_000_000,
100_000_000,
1_000_000_000,
10_000_000_000,
100_000_000_000,
1_000_000_000_000,
10_000_000_000_000,
100_000_000_000_000,
1_000_000_000_000_000,
10_000_000_000_000_000,
];
let skip = match s.as_bytes()[0].is_ascii_digit() {
true => 0,
false => 1,
};
((s.as_bytes()[skip..].chunks(16).fold(0, |acc, x| {
acc * POW_10[x.len()]
+ ((((((((x.into_iter().fold(0, |acc, &x| (acc << 8) | (x as u128))
& 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f)
.wrapping_mul((1 << 8) + 10)
>> 8)
& 0x00ff00ff00ff00ff00ff00ff00ff00ff)
.wrapping_mul((1 << 16) + 100)
>> 16)
& 0x0000ffff0000ffff0000ffff0000ffff)
.wrapping_mul((1 << 32) + 10000)
>> 32)
& 0x00000000ffffffff00000000ffffffff)
.wrapping_mul((1 << 64) + 100000000)
>> 64)
}) as i128)
* match s.as_bytes()[0] == b'-' {
true => -1,
false => 1,
}) as Self
}
}
impl Parsable for f32 {
unsafe fn from_str(s: &str) -> Self {
parse_float!(s)
}
}
impl Parsable for f64 {
unsafe fn from_str(s: &str) -> Self {
parse_float!(s)
}
}
}
#[macro_export]
macro_rules! write {
($out:expr) => {{
use std::io::Write;
std::io::stdout()
.lock()
.write_all(($out).as_bytes())
.unwrap();
}};
}
#[macro_export]
macro_rules! format_vec {
($v:expr, $sep:expr, ($($elem:ident),+) -> ($form:expr $(, $ex:expr)*)) => {{
if $v.is_empty() { return String::new(); }
let mut v = $v;
#[allow(unused_parens)]
let ($($elem),+) = v.drain(..1).next().unwrap();
#[allow(unused_parens)]
v.into_iter().fold(std::format!($form $(, $ex)*), |mut acc, ($($elem),+)| {
use std::fmt::Write;
acc.push_str($sep);
std::write!(&mut acc, $form $(, $ex)*).unwrap();
acc
})
}}
}