CF196C.Paint Tree
普及/提高-
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题目描述
You are given a tree with n vertexes and n points on a plane, no three points lie on one straight line.
Your task is to paint the given tree on a plane, using the given points as vertexes.
That is, you should correspond each vertex of the tree to exactly one point and each point should correspond to a vertex. If two vertexes of the tree are connected by an edge, then the corresponding points should have a segment painted between them. The segments that correspond to non-adjacent edges, should not have common points. The segments that correspond to adjacent edges should have exactly one common point.
输入格式
The first line contains an integer n ( 1<=n<=1500 ) — the number of vertexes on a tree (as well as the number of chosen points on the plane).
Each of the next n−1 lines contains two space-separated integers ui and vi ( 1<=ui,vi<=n , ui=vi ) — the numbers of tree vertexes connected by the i -th edge.
Each of the next n lines contain two space-separated integers xi and yi ( −109<=xi,yi<=109 ) — the coordinates of the i -th point on the plane. No three points lie on one straight line.
It is guaranteed that under given constraints problem has a solution.
输出格式
Print n distinct space-separated integers from 1 to n : the i -th number must equal the number of the vertex to place at the i -th point (the points are numbered in the order, in which they are listed in the input).
If there are several solutions, print any of them.
输入输出样例
输入#1
3 1 3 2 3 0 0 1 1 2 0
输出#1
1 3 2
输入#2
4 1 2 2 3 1 4 -1 -2 3 5 -3 3 2 0
输出#2
4 2 1 3
说明/提示
The possible solutions for the sample are given below.