結果
問題 | No.1192 半部分列 |
ユーザー | koba-e964 |
提出日時 | 2020-08-28 14:22:05 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 273 ms / 2,000 ms |
コード長 | 3,992 bytes |
コンパイル時間 | 14,303 ms |
コンパイル使用メモリ | 379,596 KB |
実行使用メモリ | 46,004 KB |
最終ジャッジ日時 | 2024-11-09 01:15:14 |
合計ジャッジ時間 | 17,095 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 1 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 1 ms
5,248 KB |
testcase_05 | AC | 1 ms
5,248 KB |
testcase_06 | AC | 273 ms
46,004 KB |
testcase_07 | AC | 257 ms
45,112 KB |
testcase_08 | AC | 259 ms
45,008 KB |
testcase_09 | AC | 251 ms
43,468 KB |
testcase_10 | AC | 1 ms
5,248 KB |
testcase_11 | AC | 1 ms
5,248 KB |
testcase_12 | AC | 260 ms
45,244 KB |
testcase_13 | AC | 61 ms
20,688 KB |
testcase_14 | AC | 132 ms
29,316 KB |
testcase_15 | AC | 172 ms
27,712 KB |
testcase_16 | AC | 130 ms
20,724 KB |
testcase_17 | AC | 205 ms
28,396 KB |
testcase_18 | AC | 3 ms
5,248 KB |
testcase_19 | AC | 50 ms
9,472 KB |
testcase_20 | AC | 2 ms
5,248 KB |
testcase_21 | AC | 11 ms
23,208 KB |
testcase_22 | AC | 1 ms
5,248 KB |
testcase_23 | AC | 257 ms
44,848 KB |
testcase_24 | AC | 5 ms
9,448 KB |
testcase_25 | AC | 10 ms
19,764 KB |
testcase_26 | AC | 11 ms
19,892 KB |
testcase_27 | AC | 125 ms
22,796 KB |
ソースコード
#[allow(unused_imports)] use std::cmp::*; #[allow(unused_imports)] use std::collections::*; use std::io::{Write, BufWriter}; // 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::<$t>().expect("Parse error")); } #[allow(unused)] macro_rules! debug { ($($format:tt)*) => (write!(std::io::stderr(), $($format)*).unwrap()); } #[allow(unused)] macro_rules! debugln { ($($format:tt)*) => (writeln!(std::io::stderr(), $($format)*).unwrap()); } fn solve() { let out = std::io::stdout(); let mut out = BufWriter::new(out.lock()); macro_rules! puts { ($($format:tt)*) => (let _ = write!(out,$($format)*);); } input! { s: chars, t: chars, } let s: Vec<usize> = s.into_iter().map(|c| (c as u8 - b'a') as _).collect(); let t: Vec<usize> = t.into_iter().map(|c| (c as u8 - b'a') as _).collect(); let n = s.len(); let m = t.len(); let mut dp1 = vec![[n + 1; 26]; n + 1]; let mut dp2 = vec![[m + 1; 26]; m + 1]; for i in (0..n).rev() { dp1[i] = dp1[i + 1]; dp1[i][s[i]] = i; } for i in (0..m).rev() { dp2[i] = dp2[i + 1]; dp2[i][t[i]] = i; } // j < pos[i] <=> s[i..] is a subsequence of t[j..] let mut pos = vec![m + 1; n + 1]; for i in (0..n).rev() { let mut p = max(1, pos[i + 1]) - 1; while p > 0 { if t[p - 1] == s[i] { break; } p -= 1; } pos[i] = p; } eprintln!("pos = {:?}", pos); let mut ans = vec![]; let mut cur1 = 0; let mut cur2 = 0; if pos[0] > 0 { puts!("-1\n"); return; } while cur1 < n && cur2 <= m { let mut nxt = None; for i in 0..26 { let nxtcur1 = dp1[cur1][i] + 1; let nxtcur2 = dp2[cur2][i] + 1; if nxtcur1 <= n && pos[nxtcur1] <= nxtcur2 { nxt = Some(i); break; } } if let Some(nxt) = nxt { cur1 = dp1[cur1][nxt] + 1; cur2 = dp2[cur2][nxt] + 1; ans.push(nxt); } else { panic!(); } } for v in ans { puts!("{}", (b'a' + v as u8) as char); } puts!("\n"); } fn main() { // In order to avoid potential stack overflow, spawn a new thread. let stack_size = 104_857_600; // 100 MB let thd = std::thread::Builder::new().stack_size(stack_size); thd.spawn(|| solve()).unwrap().join().unwrap(); }