// CEOI 2022 Day2 Drawing
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
struct Point {
int x, y, id;
bool operator<(const Point& p) const {
if (x != p.x) return x < p.x;
return y < p.y;
}
};
LL cross(const Point& a, const Point& b, const Point& c) {
LL x1 = b.x - a.x, y1 = b.y - a.y, x2 = c.x - a.x, y2 = c.y - a.y;
return x1 * y2 - x2 * y1;
}
int main() {
ios::sync_with_stdio(false), cin.tie(0);
int N;
cin >> N;
vector<vector<int>> G(N + 1);
for (int i = 1, a, b; i < N; i++)
cin >> a >> b, G[a].push_back(b), G[b].push_back(a);
vector<Point> ps(N);
for (int i = 0; i < N; i++) cin >> ps[i].x >> ps[i].y, ps[i].id = i + 1;
sort(begin(ps), end(ps));
sort(begin(ps) + 1, end(ps),
[&](const Point& a, const Point& b) { return cross(ps[0], a, b) >= 0; });
vector<int> Ans(N + 1);
auto pi = begin(ps);
function<void(int, int)> dfs = [&](int u, int fa) {
Ans[u] = pi->id, pi++;
for (int v : G[u])
if (v != fa) dfs(v, u);
};
dfs(1, 0);
for (int i = 1; i <= N; i++) printf("%d ", Ans[i]);
puts("");
return 0;
}
// AC 100
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
114 ms |
11212 KB |
Output is correct |
2 |
Correct |
99 ms |
16640 KB |
Output is correct |
3 |
Correct |
112 ms |
14228 KB |
Output is correct |
4 |
Correct |
115 ms |
18568 KB |
Output is correct |
5 |
Correct |
102 ms |
18764 KB |
Output is correct |
6 |
Correct |
99 ms |
11164 KB |
Output is correct |
7 |
Correct |
98 ms |
12112 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
724 KB |
Output is correct |
2 |
Correct |
3 ms |
852 KB |
Output is correct |
3 |
Correct |
4 ms |
708 KB |
Output is correct |
4 |
Correct |
4 ms |
980 KB |
Output is correct |
5 |
Correct |
4 ms |
948 KB |
Output is correct |
6 |
Correct |
4 ms |
692 KB |
Output is correct |
7 |
Correct |
4 ms |
704 KB |
Output is correct |
8 |
Correct |
3 ms |
724 KB |
Output is correct |
9 |
Correct |
4 ms |
824 KB |
Output is correct |
10 |
Correct |
3 ms |
832 KB |
Output is correct |
11 |
Correct |
3 ms |
980 KB |
Output is correct |
12 |
Correct |
3 ms |
852 KB |
Output is correct |
13 |
Correct |
3 ms |
704 KB |
Output is correct |
14 |
Correct |
3 ms |
724 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
724 KB |
Output is correct |
2 |
Correct |
3 ms |
852 KB |
Output is correct |
3 |
Correct |
4 ms |
708 KB |
Output is correct |
4 |
Correct |
4 ms |
980 KB |
Output is correct |
5 |
Correct |
4 ms |
948 KB |
Output is correct |
6 |
Correct |
4 ms |
692 KB |
Output is correct |
7 |
Correct |
4 ms |
704 KB |
Output is correct |
8 |
Correct |
3 ms |
724 KB |
Output is correct |
9 |
Correct |
4 ms |
824 KB |
Output is correct |
10 |
Correct |
3 ms |
832 KB |
Output is correct |
11 |
Correct |
3 ms |
980 KB |
Output is correct |
12 |
Correct |
3 ms |
852 KB |
Output is correct |
13 |
Correct |
3 ms |
704 KB |
Output is correct |
14 |
Correct |
3 ms |
724 KB |
Output is correct |
15 |
Correct |
8 ms |
1368 KB |
Output is correct |
16 |
Correct |
10 ms |
1748 KB |
Output is correct |
17 |
Correct |
7 ms |
1480 KB |
Output is correct |
18 |
Correct |
7 ms |
1996 KB |
Output is correct |
19 |
Correct |
8 ms |
2020 KB |
Output is correct |
20 |
Correct |
7 ms |
1372 KB |
Output is correct |
21 |
Correct |
7 ms |
1496 KB |
Output is correct |
22 |
Correct |
8 ms |
1292 KB |
Output is correct |
23 |
Correct |
7 ms |
1608 KB |
Output is correct |
24 |
Correct |
7 ms |
1492 KB |
Output is correct |
25 |
Correct |
9 ms |
2004 KB |
Output is correct |
26 |
Correct |
7 ms |
1876 KB |
Output is correct |
27 |
Correct |
7 ms |
1356 KB |
Output is correct |
28 |
Correct |
8 ms |
1492 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
724 KB |
Output is correct |
2 |
Correct |
3 ms |
852 KB |
Output is correct |
3 |
Correct |
4 ms |
708 KB |
Output is correct |
4 |
Correct |
4 ms |
980 KB |
Output is correct |
5 |
Correct |
4 ms |
948 KB |
Output is correct |
6 |
Correct |
4 ms |
692 KB |
Output is correct |
7 |
Correct |
4 ms |
704 KB |
Output is correct |
8 |
Correct |
3 ms |
724 KB |
Output is correct |
9 |
Correct |
4 ms |
824 KB |
Output is correct |
10 |
Correct |
3 ms |
832 KB |
Output is correct |
11 |
Correct |
3 ms |
980 KB |
Output is correct |
12 |
Correct |
3 ms |
852 KB |
Output is correct |
13 |
Correct |
3 ms |
704 KB |
Output is correct |
14 |
Correct |
3 ms |
724 KB |
Output is correct |
15 |
Correct |
8 ms |
1368 KB |
Output is correct |
16 |
Correct |
10 ms |
1748 KB |
Output is correct |
17 |
Correct |
7 ms |
1480 KB |
Output is correct |
18 |
Correct |
7 ms |
1996 KB |
Output is correct |
19 |
Correct |
8 ms |
2020 KB |
Output is correct |
20 |
Correct |
7 ms |
1372 KB |
Output is correct |
21 |
Correct |
7 ms |
1496 KB |
Output is correct |
22 |
Correct |
8 ms |
1292 KB |
Output is correct |
23 |
Correct |
7 ms |
1608 KB |
Output is correct |
24 |
Correct |
7 ms |
1492 KB |
Output is correct |
25 |
Correct |
9 ms |
2004 KB |
Output is correct |
26 |
Correct |
7 ms |
1876 KB |
Output is correct |
27 |
Correct |
7 ms |
1356 KB |
Output is correct |
28 |
Correct |
8 ms |
1492 KB |
Output is correct |
29 |
Correct |
61 ms |
8520 KB |
Output is correct |
30 |
Correct |
91 ms |
12412 KB |
Output is correct |
31 |
Correct |
69 ms |
11068 KB |
Output is correct |
32 |
Correct |
69 ms |
14136 KB |
Output is correct |
33 |
Correct |
73 ms |
12944 KB |
Output is correct |
34 |
Correct |
70 ms |
8524 KB |
Output is correct |
35 |
Correct |
67 ms |
9492 KB |
Output is correct |
36 |
Correct |
52 ms |
7584 KB |
Output is correct |
37 |
Correct |
86 ms |
11196 KB |
Output is correct |
38 |
Correct |
66 ms |
11424 KB |
Output is correct |
39 |
Correct |
77 ms |
12868 KB |
Output is correct |
40 |
Correct |
65 ms |
11720 KB |
Output is correct |
41 |
Correct |
58 ms |
7736 KB |
Output is correct |
42 |
Correct |
73 ms |
9600 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
114 ms |
11212 KB |
Output is correct |
2 |
Correct |
99 ms |
16640 KB |
Output is correct |
3 |
Correct |
112 ms |
14228 KB |
Output is correct |
4 |
Correct |
115 ms |
18568 KB |
Output is correct |
5 |
Correct |
102 ms |
18764 KB |
Output is correct |
6 |
Correct |
99 ms |
11164 KB |
Output is correct |
7 |
Correct |
98 ms |
12112 KB |
Output is correct |
8 |
Correct |
3 ms |
724 KB |
Output is correct |
9 |
Correct |
3 ms |
852 KB |
Output is correct |
10 |
Correct |
4 ms |
708 KB |
Output is correct |
11 |
Correct |
4 ms |
980 KB |
Output is correct |
12 |
Correct |
4 ms |
948 KB |
Output is correct |
13 |
Correct |
4 ms |
692 KB |
Output is correct |
14 |
Correct |
4 ms |
704 KB |
Output is correct |
15 |
Correct |
3 ms |
724 KB |
Output is correct |
16 |
Correct |
4 ms |
824 KB |
Output is correct |
17 |
Correct |
3 ms |
832 KB |
Output is correct |
18 |
Correct |
3 ms |
980 KB |
Output is correct |
19 |
Correct |
3 ms |
852 KB |
Output is correct |
20 |
Correct |
3 ms |
704 KB |
Output is correct |
21 |
Correct |
3 ms |
724 KB |
Output is correct |
22 |
Correct |
8 ms |
1368 KB |
Output is correct |
23 |
Correct |
10 ms |
1748 KB |
Output is correct |
24 |
Correct |
7 ms |
1480 KB |
Output is correct |
25 |
Correct |
7 ms |
1996 KB |
Output is correct |
26 |
Correct |
8 ms |
2020 KB |
Output is correct |
27 |
Correct |
7 ms |
1372 KB |
Output is correct |
28 |
Correct |
7 ms |
1496 KB |
Output is correct |
29 |
Correct |
8 ms |
1292 KB |
Output is correct |
30 |
Correct |
7 ms |
1608 KB |
Output is correct |
31 |
Correct |
7 ms |
1492 KB |
Output is correct |
32 |
Correct |
9 ms |
2004 KB |
Output is correct |
33 |
Correct |
7 ms |
1876 KB |
Output is correct |
34 |
Correct |
7 ms |
1356 KB |
Output is correct |
35 |
Correct |
8 ms |
1492 KB |
Output is correct |
36 |
Correct |
61 ms |
8520 KB |
Output is correct |
37 |
Correct |
91 ms |
12412 KB |
Output is correct |
38 |
Correct |
69 ms |
11068 KB |
Output is correct |
39 |
Correct |
69 ms |
14136 KB |
Output is correct |
40 |
Correct |
73 ms |
12944 KB |
Output is correct |
41 |
Correct |
70 ms |
8524 KB |
Output is correct |
42 |
Correct |
67 ms |
9492 KB |
Output is correct |
43 |
Correct |
52 ms |
7584 KB |
Output is correct |
44 |
Correct |
86 ms |
11196 KB |
Output is correct |
45 |
Correct |
66 ms |
11424 KB |
Output is correct |
46 |
Correct |
77 ms |
12868 KB |
Output is correct |
47 |
Correct |
65 ms |
11720 KB |
Output is correct |
48 |
Correct |
58 ms |
7736 KB |
Output is correct |
49 |
Correct |
73 ms |
9600 KB |
Output is correct |
50 |
Correct |
110 ms |
12188 KB |
Output is correct |
51 |
Correct |
224 ms |
27364 KB |
Output is correct |
52 |
Correct |
232 ms |
23612 KB |
Output is correct |
53 |
Correct |
219 ms |
28092 KB |
Output is correct |
54 |
Correct |
234 ms |
33384 KB |
Output is correct |
55 |
Correct |
229 ms |
17988 KB |
Output is correct |
56 |
Correct |
230 ms |
19676 KB |
Output is correct |
57 |
Correct |
34 ms |
4856 KB |
Output is correct |
58 |
Correct |
217 ms |
23536 KB |
Output is correct |
59 |
Correct |
244 ms |
22704 KB |
Output is correct |
60 |
Correct |
215 ms |
32312 KB |
Output is correct |
61 |
Correct |
213 ms |
26788 KB |
Output is correct |
62 |
Correct |
41 ms |
4884 KB |
Output is correct |
63 |
Correct |
218 ms |
19580 KB |
Output is correct |