#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
struct point {
int a, b;
point() {}
point(int a, int b) : a(a), b(b) {}
};
ll operator*(point a, point b) {
return a.a*b.b-a.b*b.a;
}
point operator-(point a, point b) {
return point(a.a-b.a, a.b-b.b);
}
point base;
bool operator<(point a, point b) {
return (a-base)*(b-base) > 0;
}
typedef pair<int, int> pii;
typedef pair<point, int> ppi;
const int MAXN = 2e5+5;
int n;
ppi points[MAXN];
vector<int> edges[MAXN];
int nxt = 0;
int ans[MAXN];
void dfs(int cur, int p = -1) {
ans[points[nxt++].second] = cur+1;
for (int e: edges[cur]) {
if (e == p) continue;
dfs(e, cur);
}
}
int main() {
ios_base::sync_with_stdio(false); cin.tie(NULL);
cin >> n;
int lft = 0;
for (int i = 0; i < n-1; i++) {
int x, y; cin >> x >> y;
x--; y--;
edges[x].push_back(y);
edges[y].push_back(x);
}
for (int i = 0; i < n; i++) {
int x, y; cin >> x >> y;
points[i] = ppi(point(x, y), i);
if (pii(x, y) < pii(points[lft].first.a, points[lft].first.b)) lft = i;
}
swap(points[0], points[lft]);
base = points[0].first;
sort(points+1, points+n);
dfs(0);
for (int i = 0; i < n; i++) {
if (i) cout << ' ';
cout << ans[i];
}
cout << '\n';
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
67 ms |
15508 KB |
Output is correct |
| 2 |
Correct |
73 ms |
18704 KB |
Output is correct |
| 3 |
Correct |
68 ms |
17296 KB |
Output is correct |
| 4 |
Correct |
74 ms |
20196 KB |
Output is correct |
| 5 |
Correct |
66 ms |
20008 KB |
Output is correct |
| 6 |
Correct |
63 ms |
15524 KB |
Output is correct |
| 7 |
Correct |
66 ms |
15980 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 2 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 3 |
Correct |
5 ms |
7640 KB |
Output is correct |
| 4 |
Correct |
5 ms |
7696 KB |
Output is correct |
| 5 |
Correct |
5 ms |
7772 KB |
Output is correct |
| 6 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 7 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 8 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 9 |
Correct |
5 ms |
7764 KB |
Output is correct |
| 10 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 11 |
Correct |
5 ms |
7764 KB |
Output is correct |
| 12 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 13 |
Correct |
5 ms |
7612 KB |
Output is correct |
| 14 |
Correct |
5 ms |
7604 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 2 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 3 |
Correct |
5 ms |
7640 KB |
Output is correct |
| 4 |
Correct |
5 ms |
7696 KB |
Output is correct |
| 5 |
Correct |
5 ms |
7772 KB |
Output is correct |
| 6 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 7 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 8 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 9 |
Correct |
5 ms |
7764 KB |
Output is correct |
| 10 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 11 |
Correct |
5 ms |
7764 KB |
Output is correct |
| 12 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 13 |
Correct |
5 ms |
7612 KB |
Output is correct |
| 14 |
Correct |
5 ms |
7604 KB |
Output is correct |
| 15 |
Correct |
8 ms |
8024 KB |
Output is correct |
| 16 |
Correct |
7 ms |
8284 KB |
Output is correct |
| 17 |
Correct |
8 ms |
8148 KB |
Output is correct |
| 18 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 19 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 20 |
Correct |
8 ms |
8020 KB |
Output is correct |
| 21 |
Correct |
8 ms |
8152 KB |
Output is correct |
| 22 |
Correct |
8 ms |
8020 KB |
Output is correct |
| 23 |
Correct |
8 ms |
8156 KB |
Output is correct |
| 24 |
Correct |
8 ms |
8148 KB |
Output is correct |
| 25 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 26 |
Correct |
8 ms |
8280 KB |
Output is correct |
| 27 |
Correct |
8 ms |
7980 KB |
Output is correct |
| 28 |
Correct |
8 ms |
8176 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 2 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 3 |
Correct |
5 ms |
7640 KB |
Output is correct |
| 4 |
Correct |
5 ms |
7696 KB |
Output is correct |
| 5 |
Correct |
5 ms |
7772 KB |
Output is correct |
| 6 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 7 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 8 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 9 |
Correct |
5 ms |
7764 KB |
Output is correct |
| 10 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 11 |
Correct |
5 ms |
7764 KB |
Output is correct |
| 12 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 13 |
Correct |
5 ms |
7612 KB |
Output is correct |
| 14 |
Correct |
5 ms |
7604 KB |
Output is correct |
| 15 |
Correct |
8 ms |
8024 KB |
Output is correct |
| 16 |
Correct |
7 ms |
8284 KB |
Output is correct |
| 17 |
Correct |
8 ms |
8148 KB |
Output is correct |
| 18 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 19 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 20 |
Correct |
8 ms |
8020 KB |
Output is correct |
| 21 |
Correct |
8 ms |
8152 KB |
Output is correct |
| 22 |
Correct |
8 ms |
8020 KB |
Output is correct |
| 23 |
Correct |
8 ms |
8156 KB |
Output is correct |
| 24 |
Correct |
8 ms |
8148 KB |
Output is correct |
| 25 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 26 |
Correct |
8 ms |
8280 KB |
Output is correct |
| 27 |
Correct |
8 ms |
7980 KB |
Output is correct |
| 28 |
Correct |
8 ms |
8176 KB |
Output is correct |
| 29 |
Correct |
57 ms |
13144 KB |
Output is correct |
| 30 |
Correct |
47 ms |
15324 KB |
Output is correct |
| 31 |
Correct |
46 ms |
14576 KB |
Output is correct |
| 32 |
Correct |
44 ms |
16076 KB |
Output is correct |
| 33 |
Correct |
52 ms |
15732 KB |
Output is correct |
| 34 |
Correct |
44 ms |
13044 KB |
Output is correct |
| 35 |
Correct |
45 ms |
13604 KB |
Output is correct |
| 36 |
Correct |
40 ms |
12312 KB |
Output is correct |
| 37 |
Correct |
47 ms |
14708 KB |
Output is correct |
| 38 |
Correct |
45 ms |
14796 KB |
Output is correct |
| 39 |
Correct |
45 ms |
15720 KB |
Output is correct |
| 40 |
Correct |
44 ms |
14676 KB |
Output is correct |
| 41 |
Correct |
38 ms |
12236 KB |
Output is correct |
| 42 |
Correct |
45 ms |
13744 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
67 ms |
15508 KB |
Output is correct |
| 2 |
Correct |
73 ms |
18704 KB |
Output is correct |
| 3 |
Correct |
68 ms |
17296 KB |
Output is correct |
| 4 |
Correct |
74 ms |
20196 KB |
Output is correct |
| 5 |
Correct |
66 ms |
20008 KB |
Output is correct |
| 6 |
Correct |
63 ms |
15524 KB |
Output is correct |
| 7 |
Correct |
66 ms |
15980 KB |
Output is correct |
| 8 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 9 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 10 |
Correct |
5 ms |
7640 KB |
Output is correct |
| 11 |
Correct |
5 ms |
7696 KB |
Output is correct |
| 12 |
Correct |
5 ms |
7772 KB |
Output is correct |
| 13 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 14 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 15 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 16 |
Correct |
5 ms |
7764 KB |
Output is correct |
| 17 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 18 |
Correct |
5 ms |
7764 KB |
Output is correct |
| 19 |
Correct |
5 ms |
7636 KB |
Output is correct |
| 20 |
Correct |
5 ms |
7612 KB |
Output is correct |
| 21 |
Correct |
5 ms |
7604 KB |
Output is correct |
| 22 |
Correct |
8 ms |
8024 KB |
Output is correct |
| 23 |
Correct |
7 ms |
8284 KB |
Output is correct |
| 24 |
Correct |
8 ms |
8148 KB |
Output is correct |
| 25 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 26 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 27 |
Correct |
8 ms |
8020 KB |
Output is correct |
| 28 |
Correct |
8 ms |
8152 KB |
Output is correct |
| 29 |
Correct |
8 ms |
8020 KB |
Output is correct |
| 30 |
Correct |
8 ms |
8156 KB |
Output is correct |
| 31 |
Correct |
8 ms |
8148 KB |
Output is correct |
| 32 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 33 |
Correct |
8 ms |
8280 KB |
Output is correct |
| 34 |
Correct |
8 ms |
7980 KB |
Output is correct |
| 35 |
Correct |
8 ms |
8176 KB |
Output is correct |
| 36 |
Correct |
57 ms |
13144 KB |
Output is correct |
| 37 |
Correct |
47 ms |
15324 KB |
Output is correct |
| 38 |
Correct |
46 ms |
14576 KB |
Output is correct |
| 39 |
Correct |
44 ms |
16076 KB |
Output is correct |
| 40 |
Correct |
52 ms |
15732 KB |
Output is correct |
| 41 |
Correct |
44 ms |
13044 KB |
Output is correct |
| 42 |
Correct |
45 ms |
13604 KB |
Output is correct |
| 43 |
Correct |
40 ms |
12312 KB |
Output is correct |
| 44 |
Correct |
47 ms |
14708 KB |
Output is correct |
| 45 |
Correct |
45 ms |
14796 KB |
Output is correct |
| 46 |
Correct |
45 ms |
15720 KB |
Output is correct |
| 47 |
Correct |
44 ms |
14676 KB |
Output is correct |
| 48 |
Correct |
38 ms |
12236 KB |
Output is correct |
| 49 |
Correct |
45 ms |
13744 KB |
Output is correct |
| 50 |
Correct |
71 ms |
16432 KB |
Output is correct |
| 51 |
Correct |
162 ms |
27640 KB |
Output is correct |
| 52 |
Correct |
126 ms |
25512 KB |
Output is correct |
| 53 |
Correct |
151 ms |
27640 KB |
Output is correct |
| 54 |
Correct |
141 ms |
31332 KB |
Output is correct |
| 55 |
Correct |
120 ms |
22084 KB |
Output is correct |
| 56 |
Correct |
131 ms |
23052 KB |
Output is correct |
| 57 |
Correct |
25 ms |
10412 KB |
Output is correct |
| 58 |
Correct |
129 ms |
25364 KB |
Output is correct |
| 59 |
Correct |
131 ms |
24840 KB |
Output is correct |
| 60 |
Correct |
136 ms |
30644 KB |
Output is correct |
| 61 |
Correct |
149 ms |
26672 KB |
Output is correct |
| 62 |
Correct |
25 ms |
10404 KB |
Output is correct |
| 63 |
Correct |
139 ms |
22916 KB |
Output is correct |
