func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 1500 + 5, INF = 2000 * 1000 * 1000;   vector<pair<int, int> > li[N];   vector<int> adj[N];   pair<pair<int, int>, int> po[N];   pair<int, int> J;   int d[N], out[N];   void dfs(const int &v, const int &pa) {     d[v] = 1;     for (int i = 0; i < (int)(adj[v]).size(); ++i) {       if (adj[v][i] != pa) {         dfs(adj[v][i], v);         d[v] += d[adj[v][i]];         li[v].push_back(make_pair(d[adj[v][i]], adj[v][i]));       }     }   }   bool cmp(const pair<pair<int, int>, int> &R,            const pair<pair<int, int>, int> &T) {     long long a1 = J.first - R.first.first, a2 = J.first - T.first.first;     long long b1 = J.second - R.first.second, b2 = J.second - T.first.second;     return a1 * b2 > a2 * b1;   }   void ass(int f, int s, int x) {     pair<int, int> ans = make_pair(-INF, -INF);     int no;     for (int i = f; i <= s; ++i) {       if (po[i].first.second > ans.second)         ans = make_pair(po[i].first.first, po[i].first.second), no = i;       else if (po[i].first.second == ans.second && po[i].first.first < ans.first)         ans = make_pair(po[i].first.first, po[i].first.second), no = i;     }     J = ans;     out[po[no].second] = x;     swap(po[no], po[s]);     sort(po + f, po + s, cmp);     for (int i = 0; i < (int)(li[x]).size(); ++i) {       ass(f, f + li[x][i].first - 1, li[x][i].second);       f += li[x][i].first;     }   }   int main() {     ios::sync_with_stdio(false);     srand(time(0));     int n, a, b, root;     int zero = 0;     scanf( %d , &n);     if (n >= 1300)       root = 750;     else       root = rand() % n + 1;     for (int i = 0; i < n - 1; ++i) {       adj[i].reserve(N);       li[i].reserve(N);       scanf( %d%d , &a, &b);       adj[a].push_back(b);       adj[b].push_back(a);     }     dfs(root, zero);     for (int i = 1; i <= n; ++i)       scanf( %d%d , &po[i].first.first, &po[i].first.second), po[i].second = i;     ass(1, n, root);     for (int i = 1; i <= n; ++i) printf( %d  , out[i]);     printf(  n );     return 0;   }   