結果
| 問題 |
No.2374 ASKT Subsequences
|
| コンテスト | |
| ユーザー |
H20
|
| 提出日時 | 2023-07-07 22:11:27 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 3,239 bytes |
| コンパイル時間 | 16,181 ms |
| コンパイル使用メモリ | 384,476 KB |
| 実行使用メモリ | 14,008 KB |
| 最終ジャッジ日時 | 2024-07-21 18:15:26 |
| 合計ジャッジ時間 | 20,060 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 22 TLE * 1 -- * 5 |
コンパイルメッセージ
warning: variable does not need to be mutable
--> src/main.rs:34:13
|
34 | let mut $var = read_value!($next, $t);
| ----^^^^
| |
| help: remove this `mut`
...
100 | / input! {
101 | | n: usize,
102 | | mut a : [isize; n]
103 | | }
| |_____- in this macro invocation
|
= note: `#[warn(unused_mut)]` on by default
= note: this warning originates in the macro `input_inner` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info)
ソースコード
macro_rules! input {
($($r:tt)*) => {
let mut bytes = std::io::Read::bytes(std::io::BufReader::new(std::io::stdin()));
let mut next = move |is_word: bool| -> String{
if is_word {
bytes
.by_ref()
.map(|r|r.unwrap() as char)
.skip_while(|c|c.is_whitespace())
.take_while(|c|!c.is_whitespace())
.collect()
} else {
bytes
.by_ref()
.map(|r|r.unwrap() as char)
.skip_while(|c| c == &'\n')
.take_while(|c| c != &'\n')
.collect()
}
};
input_inner!{next, $($r)*};
};
}
macro_rules! input_inner {
($next:expr) => {};
($next:expr, ) => {};
($next:expr, static $var:ident : $t:tt $($rest:tt)*) => {
$var = read_value!($next, $t);
input_inner!{$next $($rest)*}
};
($next:expr, mut $var:ident : $t:tt $($rest:tt)*) => {
let mut $var = read_value!($next, $t);
input_inner!{$next $($rest)*}
};
($next:expr, $var:ident : $t:tt $($rest:tt)*) => {
let $var = read_value!($next, $t);
input_inner!{$next $($rest)*}
};
}
macro_rules! read_value {
($next:expr, ( $($t:tt),* )) => {
( $(read_value!($next, $t)),* )
};
($next:expr, [ $t:tt ; all ]) => { {
let mut str = $next(false);
str.split_whitespace().map(|it| it.parse::<$t>().unwrap()).collect::<Vec<_>>()
}
};
($next:expr, [ $t:tt ; $len:expr ]) => {
(0..$len as usize).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
};
($next:expr, chars) => {
read_value!($next, String).chars().collect::<Vec<char>>()
};
($next:expr, lines) => {
{
let mut vec = Vec::new();
let mut str = $next(false);
while str != "" {
vec.push(str);
str = $next(false);
}
vec
}
};
($next:expr, line) => {
$next(false)
};
($next:expr, usize1) => {
read_value!($next, usize) - 1
};
($next:expr, $t:ty) => {
$next(true).parse::<$t>().expect("Parse error")
};
}
pub fn get_time() -> f64 {
static mut STIME: f64 = -1.0;
let t = std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap();
let ms = t.as_secs() as f64 + t.subsec_nanos() as f64 * 1e-9;
unsafe {
if STIME < 0.0 {
STIME = ms;
}
ms - STIME
}
}
fn main() {
input! {
n: usize,
mut a : [isize; n]
}
let mut a13 = Vec::new();
let mut a24 = Vec::new();
for i in 0..n {
for j in (i + 1)..n {
if a[i] == a[j] - 10 {
a13.push((i, j));
}
if a[i] == a[j] - 1 {
a24.push((i, j));
}
}
}
let mut ans = 0;
for &(a1, a3) in &a13 {
for &(a2, a4) in &a24 {
if a1 < a2 && a2 < a3 && a3 < a4 && a[a1] + 10 < a[a2] {
ans += 1;
}
}
}
println!("{}", ans);
}
H20