結果
問題 | No.2565 はじめてのおつかい |
ユーザー | Kyo_s_s |
提出日時 | 2023-11-27 16:46:52 |
言語 | Rust (1.77.0) |
結果 |
AC
|
実行時間 | 53 ms / 2,000 ms |
コード長 | 2,353 bytes |
コンパイル時間 | 1,467 ms |
コンパイル使用メモリ | 187,816 KB |
実行使用メモリ | 12,800 KB |
最終ジャッジ日時 | 2023-11-27 16:47:00 |
合計ジャッジ時間 | 7,523 ms |
ジャッジサーバーID (参考情報) |
judge15 / judge12 |
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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
6,676 KB |
testcase_01 | AC | 1 ms
6,676 KB |
testcase_02 | AC | 1 ms
6,676 KB |
testcase_03 | AC | 53 ms
12,800 KB |
testcase_04 | AC | 37 ms
12,800 KB |
testcase_05 | AC | 1 ms
6,676 KB |
testcase_06 | AC | 26 ms
6,676 KB |
testcase_07 | AC | 13 ms
6,676 KB |
testcase_08 | AC | 14 ms
6,676 KB |
testcase_09 | AC | 24 ms
6,676 KB |
testcase_10 | AC | 16 ms
6,676 KB |
testcase_11 | AC | 37 ms
8,576 KB |
testcase_12 | AC | 10 ms
6,676 KB |
testcase_13 | AC | 16 ms
6,676 KB |
testcase_14 | AC | 26 ms
6,676 KB |
testcase_15 | AC | 28 ms
6,676 KB |
testcase_16 | AC | 31 ms
9,856 KB |
testcase_17 | AC | 6 ms
6,676 KB |
testcase_18 | AC | 10 ms
6,676 KB |
testcase_19 | AC | 33 ms
7,808 KB |
testcase_20 | AC | 29 ms
7,296 KB |
testcase_21 | AC | 28 ms
7,296 KB |
testcase_22 | AC | 16 ms
6,676 KB |
testcase_23 | AC | 19 ms
6,676 KB |
testcase_24 | AC | 4 ms
6,676 KB |
testcase_25 | AC | 29 ms
7,296 KB |
testcase_26 | AC | 19 ms
6,676 KB |
testcase_27 | AC | 29 ms
7,680 KB |
testcase_28 | AC | 32 ms
7,552 KB |
testcase_29 | AC | 45 ms
9,088 KB |
testcase_30 | AC | 31 ms
8,320 KB |
testcase_31 | AC | 30 ms
7,552 KB |
testcase_32 | AC | 17 ms
6,676 KB |
testcase_33 | AC | 30 ms
7,936 KB |
testcase_34 | AC | 30 ms
6,912 KB |
testcase_35 | AC | 31 ms
9,088 KB |
testcase_36 | AC | 31 ms
7,936 KB |
testcase_37 | AC | 18 ms
6,676 KB |
testcase_38 | AC | 31 ms
6,912 KB |
testcase_39 | AC | 26 ms
6,676 KB |
testcase_40 | AC | 35 ms
9,088 KB |
testcase_41 | AC | 37 ms
9,600 KB |
testcase_42 | AC | 18 ms
6,676 KB |
testcase_43 | AC | 27 ms
6,676 KB |
testcase_44 | AC | 14 ms
6,676 KB |
testcase_45 | AC | 8 ms
6,676 KB |
testcase_46 | AC | 30 ms
6,676 KB |
testcase_47 | AC | 21 ms
6,676 KB |
testcase_48 | AC | 17 ms
6,676 KB |
testcase_49 | AC | 9 ms
6,676 KB |
testcase_50 | AC | 23 ms
6,676 KB |
testcase_51 | AC | 1 ms
6,676 KB |
testcase_52 | AC | 20 ms
6,676 KB |
ソースコード
use std::vec; 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, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) }; ($next:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>() }; ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error")); } fn main() { input! { n: usize, m: usize, edges: [(usize, usize); m], } let graph = { let mut graph = vec![vec![]; n]; for &(a, b) in &edges { let a = a - 1; let b = b - 1; graph[a].push(b); } graph }; let inf = 998244353; let get_dist = |start: usize| -> Vec<usize> { let mut dist = vec![inf; n]; dist[start] = 0; let mut queue = std::collections::VecDeque::new(); queue.push_back(start); while let Some(v) = queue.pop_front() { let d = dist[v]; for &e in &graph[v] { if dist[e] <= d + 1 { continue; } dist[e] = d + 1; queue.push_back(e); } } dist }; let dist_st = get_dist(0); let dist_a = get_dist(n - 2); let dist_b = get_dist(n - 1); let st_to_a = dist_st[n - 2]; let st_to_b = dist_st[n - 1]; let a_to_b = dist_a[n - 1]; let a_to_st = dist_a[0]; let b_to_a = dist_b[n - 2]; let b_to_st = dist_b[0]; let ans = { let ans = (st_to_a + a_to_b + b_to_st).min(st_to_b + b_to_a + a_to_st); let mut ans = ans as i64; if ans >= inf as i64 { ans = -1; } ans }; println!("{}", ans); }