結果
| 問題 | No.3670 Fast Knapsack |
| コンテスト | |
| ユーザー |
 elphe
|
| 提出日時 | 2026-09-04 23:27:51 |
| 言語 | Rust (1.97.1 + proconio + num + itertools) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 18,233 bytes |
| 記録 | |
| コンパイル時間 | 2,354 ms |
| コンパイル使用メモリ | 206,060 KB |
| 実行使用メモリ | 9,788 KB |
| 最終ジャッジ日時 | 2026-09-04 23:28:04 |
| 合計ジャッジ時間 | 12,414 ms |
|
ジャッジサーバーID （参考情報） |
judge2_0 / judge1_0 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 11 TLE * 1 -- * 13 |
ソースコード
fn main() {
let stdin = std::io::read_to_string(std::io::stdin().lock()).unwrap();
let mut stdin = stdin.split_ascii_whitespace();
unsafe {
read!(stdin -> (t: u32));
let cases = (0..t)
.map(|_| {
read!(stdin -> (n: u32, s: u32, a: Vec[u32; n]));
(s, a)
})
.collect();
write!(output(solve(cases)));
}
}
fn solve(cases: Vec<(u32, Vec<u32>)>) -> Vec<u32> {
cases
.into_iter()
.map(|(s, a)| {
let (mut dp_cur, mut dp_next) =
(vec![false; (s + 1) as usize], vec![false; (s + 1) as usize]);
dp_next[0] = true;
a.into_iter().for_each(|a| {
std::mem::swap(&mut dp_cur, &mut dp_next);
let dp_cur = &dp_cur;
dp_next
.iter_mut()
.zip(dp_cur.iter())
.take(a as usize)
.for_each(|(dp_next, &dp_cur)| *dp_next = dp_cur);
dp_next
.iter_mut()
.zip(dp_cur.iter())
.skip(a as usize)
.zip(dp_cur.iter())
.for_each(|((dp_next, &dp_cur_unselected), &dp_cur_selected)| {
*dp_next = dp_cur_unselected | dp_cur_selected;
});
});
dp_next.into_iter().rposition(|dp| dp).unwrap() as u32
})
.collect()
}
fn output(ans: Vec<u32>) -> String {
format_vec!(ans, "\n", (x) -> ("{}", x))
}
#[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_line {
($iter:ident -> ($($r:tt)*)) => {
let cur_line = $iter.next().unwrap().unwrap();
let mut cur_line = cur_line.split_ascii_whitespace();
read!(cur_line -> ($($r)*))
}
}
#[macro_export]
macro_rules! read_value {
($source:ident -> ($($t1:tt $([$($t2:tt)+])?),+)) => {
( $(read_value!($source -> $t1 $([$($t2)+])?)),* )
};
($source:ident -> [ $t1:tt $([$($t3:tt)+])? ; $len:expr ]) => {
::std::array::from_fn::<_, $len, _>(|_| read_value!($source -> $t1 $([$($t3)+])?))
};
($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(($out).as_bytes())
.unwrap();
}};
}
#[macro_export]
macro_rules! format_iter {
($i:expr, $sep:expr, ($($elem:ident),+) -> ($form:expr $(, $ex:expr)*)) => {{
let mut iter = $i;
#[allow(unused_parens)]
let ($($elem),+) = iter.next().unwrap();
#[allow(unused_parens)]
iter.fold(std::format!($form $(, $ex)*), |mut acc, ($($elem),+)| {
use std::fmt::Write;
acc.push_str($sep);
std::write!(&mut acc, $form $(, $ex)*).unwrap();
acc
})
}}
}
#[macro_export]
macro_rules! format_vec {
($v:expr, $sep:expr, ($($elem:ident),+) -> ($form:expr $(, $ex:expr)*)) => {{
if $v.is_empty() {
String::new()
} else {
let mut iter = $v.into_iter();
#[allow(unused_parens)]
let ($($elem),+) = iter.next().unwrap();
#[allow(unused_parens)]
iter.fold(std::format!($form $(, $ex)*), |mut acc, ($($elem),+)| {
use std::fmt::Write;
acc.push_str($sep);
std::write!(&mut acc, $form $(, $ex)*).unwrap();
acc
})
}
}}
}
#[macro_export]
macro_rules! format_vec_vec {
($v:expr, $sep1:expr, $sep2:expr, ($($elem:ident),+) -> ($form:expr $(, $ex:expr)*)) => {{
if $v.is_empty() {
String::new()
} else {
let mut iter = $v.into_iter();
let v_first = iter.next().unwrap();
#[allow(unused_parens)]
v.into_iter().fold(format_vec!(v_first, $sep2, ($($elem),+) -> ($form $(, $ex)*)), |mut acc, mut v| {
use std::fmt::Write;
acc.push_str($sep1);
if !v.is_empty() {
let mut iter_inner = v.into_iter();
#[allow(unused_parens)]
let ($($elem),+) = iter_inner.next().unwrap();
std::write!(&mut acc, $form $(, $ex)*).unwrap();
iter_inner.fold(acc, |mut acc, ($($elem),+)| {
acc.push_str($sep2);
std::write!(&mut acc, $form $(, $ex)*).unwrap();
acc
})
}
})
}
}}
}