結果
問題 | No.1153 ねこちゃんゲーム |
ユーザー | koba-e964 |
提出日時 | 2021-10-11 13:49:05 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 412 ms / 2,500 ms |
コード長 | 5,852 bytes |
コンパイル時間 | 15,378 ms |
コンパイル使用メモリ | 379,268 KB |
実行使用メモリ | 95,104 KB |
最終ジャッジ日時 | 2024-09-15 11:36:36 |
合計ジャッジ時間 | 39,512 ms |
ジャッジサーバーID (参考情報) |
judge6 / judge1 |
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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
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 3 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 352 ms
48,128 KB |
testcase_08 | AC | 350 ms
47,872 KB |
testcase_09 | AC | 350 ms
48,128 KB |
testcase_10 | AC | 355 ms
48,000 KB |
testcase_11 | AC | 344 ms
48,256 KB |
testcase_12 | AC | 348 ms
48,256 KB |
testcase_13 | AC | 349 ms
47,872 KB |
testcase_14 | AC | 360 ms
48,128 KB |
testcase_15 | AC | 349 ms
48,000 KB |
testcase_16 | AC | 345 ms
48,128 KB |
testcase_17 | AC | 348 ms
48,384 KB |
testcase_18 | AC | 357 ms
48,256 KB |
testcase_19 | AC | 350 ms
48,384 KB |
testcase_20 | AC | 348 ms
48,640 KB |
testcase_21 | AC | 347 ms
48,640 KB |
testcase_22 | AC | 341 ms
48,256 KB |
testcase_23 | AC | 340 ms
48,128 KB |
testcase_24 | AC | 343 ms
48,256 KB |
testcase_25 | AC | 339 ms
48,384 KB |
testcase_26 | AC | 333 ms
48,512 KB |
testcase_27 | AC | 403 ms
94,208 KB |
testcase_28 | AC | 412 ms
95,104 KB |
testcase_29 | AC | 397 ms
90,880 KB |
testcase_30 | AC | 402 ms
90,240 KB |
testcase_31 | AC | 369 ms
73,216 KB |
testcase_32 | AC | 281 ms
50,432 KB |
testcase_33 | AC | 275 ms
50,432 KB |
testcase_34 | AC | 284 ms
50,560 KB |
testcase_35 | AC | 280 ms
50,560 KB |
testcase_36 | AC | 279 ms
50,688 KB |
testcase_37 | AC | 136 ms
51,288 KB |
testcase_38 | AC | 125 ms
51,276 KB |
testcase_39 | AC | 130 ms
51,204 KB |
testcase_40 | AC | 131 ms
50,688 KB |
testcase_41 | AC | 121 ms
50,560 KB |
ソースコード
// 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, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) }; ($next:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>() }; ($next:expr, usize1) => (read_value!($next, usize) - 1); ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error")); } 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(); } trait LeaveOne<T>: Default + Clone { fn build(vals: &[T]) -> Self; fn leave_one(&self, excl: T) -> T; fn exchange_one(&self, excl: T, incl: T) -> T; fn add_one(&self, incl: T) -> T; fn as_is(&self) -> T; } #[derive(Default, Clone, Debug)] struct MexLeaveOne { mex1: usize, mex2: usize, f: Vec<usize>, } impl LeaveOne<usize> for MexLeaveOne { fn build(vals: &[usize]) -> Self { let seen = vals.iter().cloned().collect::<std::collections::HashSet<_>>(); let mut mex1 = 0; while seen.contains(&mex1) { mex1 += 1; } let mut mex2 = mex1 + 1; while seen.contains(&mex2) { mex2 += 1; } let mut f = vec![0; mex2]; for &v in vals { if v < mex2 { f[v] += 1; } } let loo = MexLeaveOne { mex1: mex1, mex2: mex2, f: f, }; loo } fn leave_one(&self, excl: usize) -> usize { if excl >= self.mex1 { return self.mex1; } if self.f[excl] == 1 { return excl; } self.mex1 } fn exchange_one(&self, excl: usize, incl: usize) -> usize { if excl == incl { return self.mex1; } let mex = self.add_one(incl); if excl >= mex { return mex; } let res = if self.f[excl] == 1 { excl } else { mex }; res } fn add_one(&self, incl: usize) -> usize { if incl == self.mex1 { self.mex2 } else { self.mex1 } } fn as_is(&self) -> usize { self.mex1 } } struct Reroot<T, LOO: LeaveOne<T>> { #[allow(unused)] pub dp1: Vec<T>, #[allow(unused)] pub dp2: Vec<Vec<T>>, #[allow(unused)] pub dp_loo: Vec<LOO>, } impl<T: Default + Clone, LOO: LeaveOne<T>> Reroot<T, LOO> { pub fn new(g: &[Vec<usize>]) -> Self { let n = g.len(); let mut dp1 = vec![T::default(); n]; let mut dp2 = vec![vec![]; n]; let mut dp_loo = vec![LOO::default(); n]; Self::dfs1(0, n, &g, &mut dp_loo, &mut dp2); Self::dfs2(0, n, &g, &mut dp1, &dp_loo, &mut dp2, T::default()); Reroot { dp1: dp1, dp2: dp2, dp_loo: dp_loo, } } fn dfs1( v: usize, par: usize, g: &[Vec<usize>], dp_loo: &mut [LOO], dp2: &mut [Vec<T>], ) { let mut mydp2 = vec![T::default(); g[v].len()]; let mut chval = vec![]; for i in 0..g[v].len() { let w = g[v][i]; if w == par { continue; } Self::dfs1(w, v, g, dp_loo, dp2); mydp2[i] = dp_loo[w].as_is(); chval.push(mydp2[i].clone()); } dp_loo[v] = LOO::build(&chval); dp2[v] = mydp2; } fn dfs2( v: usize, par: usize, g: &[Vec<usize>], dp1: &mut [T], dp_loo: &[LOO], dp2: &mut [Vec<T>], passed: T, ) { for i in 0..g[v].len() { let w = g[v][i]; if w == par { dp2[v][i] = passed.clone(); continue; } let inherited = if par >= g.len() { dp_loo[v].leave_one(dp2[v][i].clone()) } else { dp_loo[v].exchange_one(dp2[v][i].clone(), passed.clone()) }; Self::dfs2(w, v, g, dp1, dp_loo, dp2, inherited); } dp1[v] = if par >= g.len() { dp_loo[v].as_is() } else { dp_loo[v].add_one(passed) }; } } // Tags: rerooting fn solve() { input! { n: usize, m: usize, a: [usize1; m], uv: [(usize1, usize1); n - 1], } let mut g = vec![vec![]; n]; for &(u, v) in &uv { g[u].push(v); g[v].push(u); } let reroot = Reroot::<usize, MexLeaveOne>::new(&g); let mut gr = 0; for &a in &a { gr ^= reroot.dp1[a]; } if gr == 0 { println!("-1 -1"); return; } let mut pop = vec![false; n]; for &a in &a { pop[a] = true; } for i in 0..n { if !pop[i] { continue; } for j in 0..g[i].len() { if (gr ^ reroot.dp1[i] ^ reroot.dp2[i][j]) == 0 { let idx = a.iter().position(|&a| a == i).unwrap(); println!("{} {}", idx + 1, g[i][j] + 1); return; } } } }