Mr. Heart and the Enchanted Lights

Mr. Heart and the Enchanted Lights

Time Limit: 1.0 s

Memory Limit: 256.0 MB

Description

In the enchanting kingdom of Great Britain, there are N chambers (nodes), each adorned with magical lights. These chambers are structured in a tree formation, with chamber 1 serving as the radiant root. Each chamber’s light can either be on or off:

  • If the light in a chamber is on, it is represented by 1.
  • If the light in a chamber is off, it is represented by 0.

Mr. Heart resides in the capital chamber and is responsible for managing the lights throughout the kingdom. He receives Q queries about the magical lights in the chambers. For each query, he will provide one of two types:

  • 1 K -This command directs Mr. Heart to toggle the lights in the subtree of chamber K (including chamber K itself). If a light is currently on, it will be turned off; if it is off, it will be turned on.

  • 2 K - This command requests Mr. Heart to count how many lights are currently on in the subtree of chamber K (including chamber K itself).

Your task is to process these commands efficiently and provide the King with the correct responses.

Input

First Line N (2 ≤ N ≤ \(2 * 10^5\)), the number of chambers in the palace.
The second line contains N integers \(A_1\) , \(A_2\) ,,, \(A_N\) (0 ≤ \(A_i\) ≤ 1), where \(A_i\) indicates the initial state of the light in chamber i.
Next N - 1 Lines each contains two integers U and V, indicating a connection between chambers U and V.
The next line which contains Q (1 ≤ Q ≤ \(2 * 10^5\)), the number of Query.
Each query takes two types of input in the following format

  • 1 K
  • 2 K

K(1 ≤ K ≤ N), a specific node(chamber) of the kingdom

Output

For each "2 K" command, output the number of chambers in the subtree of K (including chamber K) that currently have their lights on.

Sample

Input Output
5
1 0 0 1 1
1 2
1 3
3 4
4 5
3
2 1
1 1
2 1
3
2


Before applying 1 K

After applying 1 1

Information

ID
1101
Difficulty
5
Category
Graph_Theory | Data_Structure | Segment_Tree , Binary_Indexed_Tree , Sparse_Table Click to Show
Tags
# Submissions
53
Accepted
17
Accepted Ratio
32%
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