use std::collections::*; use std::io::Write; type Map = BTreeMap; type Set = BTreeSet; type Deque = VecDeque; fn main() { input! { n: usize, a: [u32; n], e: [(usize1, usize1); n - 1], } let mut hld = HLD::new(n); for (a, b) in e { hld.add_edge(a, b); } hld.build(0); let mut up = vec![]; let mut down = vec![]; let mut dist = |a: usize, b: usize| -> usize { hld.path(a, b, &mut up, &mut down); up.iter() .chain(down.iter()) .map(|p| p.1 - p.0) .sum::() - 1 }; let mut map = Map::new(); for (i, a) in a.iter().enumerate() { map.entry(*a).or_insert(vec![]).push(i); } let mut dp = (n, n, 0); let mut ans = vec![0; n]; for (_, x) in map.into_iter().rev() { for &x in x.iter() { if dp.0 == n { dp = (x, x, 0); } else if dp.0 == dp.1 { dp.1 = x; dp.2 = dist(dp.0, dp.1); } else { if dp.2 < dist(dp.0, x) { dp.1 = x; dp.2 = dist(dp.0, dp.1); } if dp.2 < dist(dp.1, x) { dp.0 = x; dp.2 = dist(dp.0, dp.1); } } } for &x in x.iter() { ans[x] = dist(dp.0, x).max(dist(dp.1, x)); } } use util::*; println!("{}", ans.iter().join(" ")); } // ---------- begin input macro ---------- // reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 #[macro_export] macro_rules! input { (source = $s:expr, $($r:tt)*) => { let mut iter = $s.split_whitespace(); input_inner!{iter, $($r)*} }; ($($r:tt)*) => { let s = { use std::io::Read; let mut s = String::new(); std::io::stdin().read_to_string(&mut s).unwrap(); s }; let mut iter = s.split_whitespace(); input_inner!{iter, $($r)*} }; } #[macro_export] macro_rules! input_inner { ($iter:expr) => {}; ($iter:expr, ) => {}; ($iter:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($iter, $t); input_inner!{$iter $($r)*} }; } #[macro_export] macro_rules! read_value { ($iter:expr, ( $($t:tt),* )) => { ( $(read_value!($iter, $t)),* ) }; ($iter:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($iter, $t)).collect::>() }; ($iter:expr, chars) => { read_value!($iter, String).chars().collect::>() }; ($iter:expr, bytes) => { read_value!($iter, String).bytes().collect::>() }; ($iter:expr, usize1) => { read_value!($iter, usize) - 1 }; ($iter:expr, $t:ty) => { $iter.next().unwrap().parse::<$t>().expect("Parse error") }; } // ---------- end input macro ---------- // ---------- begin Heavy-Light decomposition ---------- pub struct HLD { size: usize, edge: Vec<(usize, usize)>, child: Vec>, path_root: Vec, parent: Vec, left: Vec, right: Vec, inverse: Vec, } impl HLD { pub fn new(size: usize) -> Self { assert!(size <= 10usize.pow(8)); HLD { size: size, edge: Vec::with_capacity(size - 1), child: Vec::new(), path_root: Vec::new(), parent: Vec::new(), left: Vec::new(), right: Vec::new(), inverse: Vec::new(), } } pub fn add_edge(&mut self, a: usize, b: usize) { assert!(a != b && a < self.size && b < self.size); self.edge.push((a, b)); } pub fn build(&mut self, root: usize) { assert!(self.edge.len() + 1 == self.size); let size = self.size; let mut cnt = vec![0; size]; for &(a, b) in self.edge.iter() { cnt[a] += 1; cnt[b] += 1; } let mut child = cnt .into_iter() .map(|c| Vec::with_capacity(c)) .collect::>(); for &(a, b) in self.edge.iter() { child[a].push(b); child[b].push(a); } let mut parent = vec![size; size]; let mut q = Vec::with_capacity(size); q.push(root); parent[root] = root; for i in 0..size { let v = q[i]; for u in child[v].clone() { assert!(parent[u] == size); parent[u] = v; child[u].retain(|e| *e != v); q.push(u); } } let mut sum = vec![1; size]; for &v in q.iter().rev() { let child = &mut child[v]; if !child.is_empty() { let (pos, _) = child.iter().enumerate().max_by_key(|p| sum[*p.1]).unwrap(); child.swap(0, pos); sum[v] = 1 + child.iter().fold(0, |s, a| s + sum[*a]); } } let mut path_root = (0..size).collect::>(); let mut left = vec![0; size]; let mut right = vec![0; size]; let mut dfs = vec![(root, false)]; let mut id = 0; while let Some((v, end)) = dfs.pop() { if end { right[v] = id; continue; } left[v] = id; id += 1; dfs.push((v, true)); let child = &child[v]; if !child.is_empty() { for &u in child[1..].iter() { path_root[u] = u; dfs.push((u, false)); } let u = child[0]; path_root[u] = path_root[v]; dfs.push((u, false)); } } let mut inverse = vec![size; size]; for (i, l) in left.iter().enumerate() { inverse[*l] = i; } self.child = child; self.parent = parent; self.left = left; self.right = right; self.path_root = path_root; self.inverse = inverse; } pub fn lca(&self, mut a: usize, mut b: usize) -> usize { assert!(a < self.size && b < self.size); let path = &self.path_root; let parent = &self.parent; let index = &self.left; while path[a] != path[b] { if index[a] > index[b] { std::mem::swap(&mut a, &mut b); } b = parent[path[b]]; } std::cmp::min((index[a], a), (index[b], b)).1 } pub fn path( &self, src: usize, dst: usize, up: &mut Vec<(usize, usize)>, down: &mut Vec<(usize, usize)>, ) { assert!(src < self.size && dst < self.size); up.clear(); down.clear(); let path = &self.path_root; let parent = &self.parent; let index = &self.left; let mut x = src; let mut y = dst; while path[x] != path[y] { if index[x] > index[y] { let p = path[x]; assert!(p == path[p]); up.push((index[p], index[x] + 1)); x = parent[p]; } else { let p = path[y]; assert!(p == path[p]); down.push((index[p], index[y] + 1)); y = parent[p]; } } if index[x] <= index[y] { down.push((index[x], index[y] + 1)); } else { up.push((index[y], index[x] + 1)); } down.reverse(); } pub fn sub_tree(&self, v: usize) -> (usize, usize) { assert!(v < self.size); (self.left[v], self.right[v]) } pub fn parent(&self, v: usize) -> Option { assert!(v < self.size); let p = self.parent[v]; if p == v { None } else { Some(p) } } // s -> t へのパスの2番目の頂点を返す pub fn next(&self, s: usize, t: usize) -> usize { assert!(s < self.size && t < self.size && s != t); let (a, b) = self.sub_tree(s); let (c, d) = self.sub_tree(t); if !(a <= c && d <= b) { return self.parent[s]; } let mut pos = t; let mut pre = t; while self.path_root[s] != self.path_root[pos] { pre = self.path_root[pos]; pos = self.parent[pre]; } if s == pos { pre } else { self.child[s][0] } } pub fn vertex(&self, x: usize) -> usize { assert!(x < self.size); self.inverse[x] } pub fn jump( &self, s: usize, t: usize, mut k: usize, up: &mut Vec<(usize, usize)>, down: &mut Vec<(usize, usize)>, ) -> Option { assert!(s.max(t) < self.size); self.path(s, t, up, down); for (l, r) in up.drain(..) { if k < r - l { return Some(self.vertex(r - 1 - k)); } k -= r - l; } for (l, r) in down.drain(..) { if k < r - l { return Some(self.vertex(l + k)); } k -= r - l; } None } } // ---------- end Heavy-Light decomposition ---------- mod util { pub trait Join { fn join(self, sep: &str) -> String; } impl Join for I where I: Iterator, T: std::fmt::Display, { fn join(self, sep: &str) -> String { let mut s = String::new(); use std::fmt::*; for (i, v) in self.enumerate() { if i > 0 { write!(&mut s, "{}", sep).ok(); } write!(&mut s, "{}", v).ok(); } s } } }