COWGATH - The Cow Gathering

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Cows have assembled from around the world for a massive gathering. There are N cows, and N−1 pairs of cows who are friends with each other. Every cow knows every other cow through some chain of friendships.
They had great fun, but the time has come for them to leave, one by one. They want to leave in some order such that as long as there are still at least two cows left, every remaining cow has a remaining friend. Furthermore, due to issues with luggage storage, there are M pairs of cows (ai,bi) such that cow ai must leave before cow bi. Note that the cows ai and bi may or may not be friends.
Help the cows figure out, for each cow, whether she could be the last cow to leave. It may be that there is no way for the cows to leave satisfying the above constraints.

Cows have assembled from around the world for a massive gathering. There are N cows, and N−1 pairs of cows who are friends with each other. Every cow knows every other cow through some chain of friendships.

They had great fun, but the time has come for them to leave, one by one. They want to leave in some order such that as long as there are still at least two cows left, every remaining cow has a remaining friend. Furthermore, due to issues with luggage storage, there are M pairs of cows (ai,bi) such that cow ai must leave before cow bi. Note that the cows ai and bi may or may not be friends.

Help the cows figure out, for each cow, whether she could be the last cow to leave. It may be that there is no way for the cows to leave satisfying the above constraints.

Input

Line 1 contains two space-separated integers N and M.

Lines 2 ≤ i ≤ N each contain two integers xi and yi with 1 ≤ xi, yi ≤ N and xi ≠ yi indicating that cows xi and yi are friends.

Lines N+1 ≤ i ≤ N+M each contain two integers ai and bi with 1 ≤ ai, bi ≤ N and ai ≠ bi indicating that cow ai must leave the gathering before cow bi.

It is guaranteed that 1 ≤ N, M ≤ 105.

Output

The output should consist of N lines, with one integer di on each line such that d= 1 if cow i could be the last to leave, and d= 0 otherwise.

Example

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


hide comments
vito1036: 2019-07-06 16:28:42

100th AC :-)

emaborevkovic: 2019-06-29 00:24:30

69th AC, best problem ever!!!


Added by:fbabic
Date:2019-05-28
Time limit:0.400s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All
Resource:USACO 2018 December Contest, Platinum