結果
問題 | No.1106 🦉 何事もバランスが大事 |
ユーザー | koba-e964 |
提出日時 | 2020-07-12 14:39:18 |
言語 | Rust (1.77.0 + proconio) |
結果 |
CE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 3,725 bytes |
コンパイル時間 | 9,889 ms |
コンパイル使用メモリ | 402,248 KB |
最終ジャッジ日時 | 2024-04-27 03:17:02 |
合計ジャッジ時間 | 10,593 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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: expected one of `:`, `@`, or `|`, found `,` --> src/main.rs:63:19 | 63 | fn trans(usize, S) -> Option<usize>; | ^ expected one of `:`, `@`, or `|` | = note: anonymous parameters are removed in the 2018 edition (see RFC 1685) help: if this is a `self` type, give it a parameter name | 63 | fn trans(self: usize, S) -> Option<usize>; | +++++ help: if this is a parameter name, give it a type | 63 | fn trans(usize: TypeName, S) -> Option<usize>; | ++++++++++ help: if this is a type, explicitly ignore the parameter name | 63 | fn trans(_: usize, S) -> Option<usize>; | ++ error: expected one of `:`, `@`, or `|`, found `)` --> src/main.rs:63:22 | 63 | fn trans(usize, S) -> Option<usize>; | ^ expected one of `:`, `@`, or `|` | = note: anonymous parameters are removed in the 2018 edition (see RFC 1685) help: if this is a parameter name, give it a type | 63 | fn trans(usize, S: TypeName) -> Option<usize>; | ++++++++++ help: if this is a type, explicitly ignore the parameter name | 63 | fn trans(usize, _: S) -> Option<usize>; | ++ error: could not compile `main` (bin "main") due to 2 previous errors
ソースコード
#[allow(unused_imports)] use std::cmp::*; #[allow(unused_imports)] use std::collections::*; // https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 macro_rules! input { ($($r:tt)*) => { let stdin = std::io::stdin(); let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock())); let mut next = move || -> String{ bytes .by_ref() .map(|r|r.unwrap() as char) .skip_while(|c|c.is_whitespace()) .take_while(|c|!c.is_whitespace()) .collect() }; input_inner!{next, $($r)*} }; } macro_rules! input_inner { ($next:expr) => {}; ($next:expr, ) => {}; ($next:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($next, $t); input_inner!{$next $($r)*} }; } macro_rules! read_value { ($next:expr, [graph1; $len:expr]) => {{ let mut g = vec![vec![]; $len]; let ab = read_value!($next, [(usize1, usize1)]); for (a, b) in ab { g[a].push(b); g[b].push(a); } g }}; ($next:expr, ( $($t:tt),* )) => { ( $(read_value!($next, $t)),* ) }; ($next:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>() }; ($next:expr, chars) => { read_value!($next, String).chars().collect::<Vec<char>>() }; ($next:expr, usize1) => (read_value!($next, usize) - 1); ($next:expr, [ $t:tt ]) => {{ let len = read_value!($next, usize); read_value!($next, [$t; len]) }}; ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error")); } // ref: https://kuretchi.github.io/blog/entries/automaton-dp/ /// An (almost) DFA. trans is allowed to return None. /// S: alphabet (the set consisting of letters) trait DFA<S> { fn size() -> usize; fn trans(usize, S) -> Option<usize>; fn init() -> Vec<usize>; } const N: usize = 30; enum GtZero {} impl DFA<i32> for GtZero { fn size() -> usize { 8 * N } fn trans(st: usize, c: i32) -> Option<usize> { let (delta, zero) = ((st / 2) as i32, st % 2); if zero == 1 && c < 0 { return None; } if delta + c < 0 || delta + c >= 4 * N as i32 { return None; } Some(2 * (delta + c) as usize + (zero & if c == 0 { 1 } else { 0 })) } fn init() -> Vec<usize> { vec![4 * N + 1] } } fn digital_dp<A: DFA<i32>, F>(alpha: &[i32], act: F, a: &[i32], n: usize) -> Vec<[i64; 2]> where F: Fn(i64, i32) -> i64 { let len = a.len(); let init = A::init(); let mut dp = vec![vec![[0; 2]; n]; len + 1]; for &v in &init { dp[0][v][1] = 1; } for i in 0..len { for j in 0..n { for eq in 0..2 { let val = dp[i][j][eq]; for &c in alpha { if eq == 1 && c > a[i] { continue; } if let Some(to) = A::trans(j, c) { dp[i + 1][to][eq & if c == a[i] { 1 } else { 0 }] += act(val, c); } } } } } dp[len].clone() } fn main() { input!(n: i64); const N: usize = 30; let alpha = [-2, -1, 0, 1, 2]; let mut dig = vec![0; N]; let mut v = n; for i in 0..N { let mut r = v % 5; if r >= 3 { r -= 5; } dig[N - 1 - i] = r as i32; v = (v - r) / 5; } let act = |a: i64, _c: i32| a; let dp = digital_dp::<GtZero, _>(&alpha, act, &dig, 8 * N); println!("{}", dp[4 * N][0] + dp[4 * N][1]); }