Problem:
Score : 600 points

Problem Statement

We have a tree with N vertices, whose i-th edge connects Vertex u_i and Vertex v_i.
Vertex i has an integer a_i written on it.
For every integer k from 1 through N, solve the following problem:

We will make a sequence by lining up the integers written on the vertices along the shortest path from Vertex 1 to Vertex k, in the order they appear. Find the length of the longest increasing subsequence of this sequence.

Here, the longest increasing subsequence of a sequence A of length L is the subsequence A_{i_1} , A_{i_2} , ... , A_{i_M} with the greatest possible value of M such that 1 \leq i_1 < i_2 < ... < i_M \leq L and A_{i_1} < A_{i_2} < ... < A_{i_M}.

Constraints

2 \leq N \leq 2 \times 10^5

1 \leq a_i \leq 10^9

1 \leq u_i , v_i \leq N

u_i \neq v_i

The given graph is a tree.

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N
a_1 a_2 ... a_N
u_1 v_1
u_2 v_2
:
u_{N-1} v_{N-1}

Output

Print N lines. The k-th line, print the length of the longest increasing subsequence of the sequence obtained from the shortest path from Vertex 1 to Vertex k.

Sample Input 1

10
1 2 5 3 4 6 7 3 2 4
1 2
2 3
3 4
4 5
3 6
6 7
1 8
8 9
9 10

Sample Output 1

1
2
3
3
4
4
5
2
2
3

For example, the sequence A obtained from the shortest path from Vertex 1 to Vertex 5 is 1,2,5,3,4. Its longest increasing subsequence is A_1, A_2, A_4, A_5, with the length of 4.

Solution in Kotlin (1.3.71) (judge verdict: Runtime Error)

const val INF = 100_000_000

@kotlin.ExperimentalStdlibApi
fun main(args: Array<String>) {
  val n = readLine()!!.toInt()
  val a = readLine()!!.split(" ").map { it.toInt() }.toIntArray()
  val c = compressed(a)
  val t = Array<MutableList<Int>>(n) { mutableListOf<Int>() }
  repeat(n-1) {
    val (u, v) = readLine()!!.split(" ").map { it.toInt()-1 }
    t[u].add(v)
    t[v].add(u)
  }
  val dp = IntArray(n+1) { INF }
  dp[0] = -1
  fun lowerBound(v: Int): Int {
    var l = 0
    var r = n
    while (r-l > 1) {
      val m = (l+r)/2
      if (dp[m] < v) l = m else r = m
    }
    return l
  }
  val ans = IntArray(n)
  fun dfs(v: Int, p: Int) {
    val index = lowerBound(c[v])+1
    val prev = dp[index]
    dp[index] = c[v]
    ans[v] = lowerBound(INF)
    for (u in t[v]) {
      if (u == p) continue
      dfs(u, v)
    }
    dp[index] = prev
  }
  dfs(0, -1)
  ans.forEach { println(it) }
}
fun compressed(a: IntArray): IntArray {
  val b = a.withIndex().sortedBy { it.value }
  var tmp = b[0].value-1
  var cnt = -1
  val c = IntArray(a.size)
  for (i in b.indices) {
    if (b[i].value > tmp) {
      cnt++
      tmp = b[i].value
    }
    c[b[i].index] = cnt
  }
  return c
}