#include "traffic.h"
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
const int N = 1000001;
vector<int> adj[N];
int sz[N];
int subSz[N];
void dfs1(int node, int par)
{
subSz[node] = sz[node];
for (int next : adj[node])
{
if (next == par) continue;
dfs1(next, node);
subSz[node] += subSz[next];
}
}
array<int, 2> dfs2(int node, int par)
{
if (par != -1)
{
subSz[par] -= subSz[node];
subSz[node] += subSz[par];
}
array<int, 2> cur = {0, node};
for (int next : adj[node])
{
cur[0] = max(subSz[next], cur[0]);
}
for (int next : adj[node])
{
if (next == par) continue;
auto ncur = dfs2(next, node);
if (ncur < cur) cur = ncur;
}
return cur;
}
int LocateCentre(int n, int p[], int S[], int D[]) {
for (int i = 0; i < n; i++) sz[i] = p[i];
for (int i = 0; i < n - 1; i++)
{
adj[S[i]].push_back(D[i]);
adj[D[i]].push_back(S[i]);
}
dfs1(0, -1);
auto res = dfs2(0, -1);
return res[1];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
23788 KB |
Output is correct |
2 |
Correct |
17 ms |
23788 KB |
Output is correct |
3 |
Correct |
16 ms |
23788 KB |
Output is correct |
4 |
Correct |
16 ms |
23788 KB |
Output is correct |
5 |
Correct |
16 ms |
23788 KB |
Output is correct |
6 |
Correct |
16 ms |
23788 KB |
Output is correct |
7 |
Correct |
17 ms |
23788 KB |
Output is correct |
8 |
Correct |
17 ms |
23788 KB |
Output is correct |
9 |
Correct |
16 ms |
23788 KB |
Output is correct |
10 |
Correct |
16 ms |
23788 KB |
Output is correct |
11 |
Correct |
16 ms |
23788 KB |
Output is correct |
12 |
Correct |
16 ms |
23788 KB |
Output is correct |
13 |
Correct |
16 ms |
23788 KB |
Output is correct |
14 |
Correct |
16 ms |
23788 KB |
Output is correct |
15 |
Correct |
16 ms |
23788 KB |
Output is correct |
16 |
Correct |
16 ms |
23788 KB |
Output is correct |
17 |
Correct |
17 ms |
23872 KB |
Output is correct |
18 |
Correct |
16 ms |
23788 KB |
Output is correct |
19 |
Correct |
16 ms |
23788 KB |
Output is correct |
20 |
Correct |
16 ms |
23788 KB |
Output is correct |
21 |
Correct |
16 ms |
23788 KB |
Output is correct |
22 |
Correct |
16 ms |
23916 KB |
Output is correct |
23 |
Correct |
16 ms |
23788 KB |
Output is correct |
24 |
Correct |
16 ms |
23916 KB |
Output is correct |
25 |
Correct |
16 ms |
23916 KB |
Output is correct |
26 |
Correct |
16 ms |
23916 KB |
Output is correct |
27 |
Correct |
16 ms |
23916 KB |
Output is correct |
28 |
Correct |
17 ms |
23936 KB |
Output is correct |
29 |
Correct |
17 ms |
23916 KB |
Output is correct |
30 |
Correct |
17 ms |
23916 KB |
Output is correct |
31 |
Correct |
16 ms |
23916 KB |
Output is correct |
32 |
Correct |
17 ms |
23916 KB |
Output is correct |
33 |
Correct |
17 ms |
23916 KB |
Output is correct |
34 |
Correct |
17 ms |
23788 KB |
Output is correct |
35 |
Correct |
17 ms |
23916 KB |
Output is correct |
36 |
Correct |
17 ms |
23916 KB |
Output is correct |
37 |
Correct |
17 ms |
23916 KB |
Output is correct |
38 |
Correct |
17 ms |
23916 KB |
Output is correct |
39 |
Correct |
17 ms |
24044 KB |
Output is correct |
40 |
Correct |
17 ms |
23916 KB |
Output is correct |
41 |
Correct |
17 ms |
23916 KB |
Output is correct |
42 |
Correct |
17 ms |
23916 KB |
Output is correct |
43 |
Correct |
17 ms |
23808 KB |
Output is correct |
44 |
Correct |
17 ms |
23808 KB |
Output is correct |
45 |
Correct |
17 ms |
23788 KB |
Output is correct |
46 |
Correct |
17 ms |
23788 KB |
Output is correct |
47 |
Correct |
16 ms |
23788 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
23788 KB |
Output is correct |
2 |
Correct |
17 ms |
23788 KB |
Output is correct |
3 |
Correct |
16 ms |
23788 KB |
Output is correct |
4 |
Correct |
16 ms |
23788 KB |
Output is correct |
5 |
Correct |
16 ms |
23788 KB |
Output is correct |
6 |
Correct |
16 ms |
23788 KB |
Output is correct |
7 |
Correct |
17 ms |
23788 KB |
Output is correct |
8 |
Correct |
17 ms |
23788 KB |
Output is correct |
9 |
Correct |
16 ms |
23788 KB |
Output is correct |
10 |
Correct |
16 ms |
23788 KB |
Output is correct |
11 |
Correct |
16 ms |
23788 KB |
Output is correct |
12 |
Correct |
16 ms |
23788 KB |
Output is correct |
13 |
Correct |
16 ms |
23788 KB |
Output is correct |
14 |
Correct |
16 ms |
23788 KB |
Output is correct |
15 |
Correct |
16 ms |
23788 KB |
Output is correct |
16 |
Correct |
16 ms |
23788 KB |
Output is correct |
17 |
Correct |
17 ms |
23872 KB |
Output is correct |
18 |
Correct |
16 ms |
23788 KB |
Output is correct |
19 |
Correct |
16 ms |
23788 KB |
Output is correct |
20 |
Correct |
16 ms |
23788 KB |
Output is correct |
21 |
Correct |
16 ms |
23788 KB |
Output is correct |
22 |
Correct |
16 ms |
23916 KB |
Output is correct |
23 |
Correct |
16 ms |
23788 KB |
Output is correct |
24 |
Correct |
16 ms |
23916 KB |
Output is correct |
25 |
Correct |
16 ms |
23916 KB |
Output is correct |
26 |
Correct |
16 ms |
23916 KB |
Output is correct |
27 |
Correct |
16 ms |
23916 KB |
Output is correct |
28 |
Correct |
17 ms |
23936 KB |
Output is correct |
29 |
Correct |
17 ms |
23916 KB |
Output is correct |
30 |
Correct |
17 ms |
23916 KB |
Output is correct |
31 |
Correct |
16 ms |
23916 KB |
Output is correct |
32 |
Correct |
17 ms |
23916 KB |
Output is correct |
33 |
Correct |
17 ms |
23916 KB |
Output is correct |
34 |
Correct |
17 ms |
23788 KB |
Output is correct |
35 |
Correct |
17 ms |
23916 KB |
Output is correct |
36 |
Correct |
17 ms |
23916 KB |
Output is correct |
37 |
Correct |
17 ms |
23916 KB |
Output is correct |
38 |
Correct |
17 ms |
23916 KB |
Output is correct |
39 |
Correct |
17 ms |
24044 KB |
Output is correct |
40 |
Correct |
17 ms |
23916 KB |
Output is correct |
41 |
Correct |
17 ms |
23916 KB |
Output is correct |
42 |
Correct |
17 ms |
23916 KB |
Output is correct |
43 |
Correct |
17 ms |
23808 KB |
Output is correct |
44 |
Correct |
17 ms |
23808 KB |
Output is correct |
45 |
Correct |
17 ms |
23788 KB |
Output is correct |
46 |
Correct |
17 ms |
23788 KB |
Output is correct |
47 |
Correct |
16 ms |
23788 KB |
Output is correct |
48 |
Correct |
17 ms |
23788 KB |
Output is correct |
49 |
Correct |
17 ms |
23820 KB |
Output is correct |
50 |
Correct |
17 ms |
23808 KB |
Output is correct |
51 |
Correct |
17 ms |
23800 KB |
Output is correct |
52 |
Correct |
16 ms |
23788 KB |
Output is correct |
53 |
Correct |
17 ms |
23788 KB |
Output is correct |
54 |
Correct |
16 ms |
23788 KB |
Output is correct |
55 |
Correct |
16 ms |
23788 KB |
Output is correct |
56 |
Correct |
16 ms |
23788 KB |
Output is correct |
57 |
Correct |
16 ms |
23788 KB |
Output is correct |
58 |
Correct |
17 ms |
23788 KB |
Output is correct |
59 |
Correct |
17 ms |
23788 KB |
Output is correct |
60 |
Correct |
17 ms |
23788 KB |
Output is correct |
61 |
Correct |
19 ms |
23788 KB |
Output is correct |
62 |
Correct |
16 ms |
23788 KB |
Output is correct |
63 |
Correct |
16 ms |
23788 KB |
Output is correct |
64 |
Correct |
17 ms |
23808 KB |
Output is correct |
65 |
Correct |
16 ms |
23788 KB |
Output is correct |
66 |
Correct |
17 ms |
23800 KB |
Output is correct |
67 |
Correct |
16 ms |
23788 KB |
Output is correct |
68 |
Correct |
42 ms |
31084 KB |
Output is correct |
69 |
Correct |
69 ms |
38380 KB |
Output is correct |
70 |
Correct |
16 ms |
23788 KB |
Output is correct |
71 |
Correct |
96 ms |
45804 KB |
Output is correct |
72 |
Correct |
122 ms |
53228 KB |
Output is correct |
73 |
Correct |
149 ms |
60524 KB |
Output is correct |
74 |
Correct |
176 ms |
67948 KB |
Output is correct |
75 |
Correct |
201 ms |
75244 KB |
Output is correct |
76 |
Correct |
227 ms |
82668 KB |
Output is correct |
77 |
Correct |
255 ms |
90092 KB |
Output is correct |
78 |
Correct |
287 ms |
97388 KB |
Output is correct |
79 |
Correct |
312 ms |
104300 KB |
Output is correct |
80 |
Correct |
343 ms |
110444 KB |
Output is correct |
81 |
Correct |
17 ms |
23788 KB |
Output is correct |
82 |
Correct |
382 ms |
116972 KB |
Output is correct |
83 |
Correct |
392 ms |
123268 KB |
Output is correct |
84 |
Correct |
423 ms |
129132 KB |
Output is correct |
85 |
Correct |
439 ms |
135532 KB |
Output is correct |
86 |
Correct |
476 ms |
142060 KB |
Output is correct |
87 |
Correct |
502 ms |
148472 KB |
Output is correct |
88 |
Correct |
532 ms |
163564 KB |
Output is correct |
89 |
Correct |
548 ms |
161516 KB |
Output is correct |
90 |
Correct |
16 ms |
23788 KB |
Output is correct |
91 |
Correct |
16 ms |
23788 KB |
Output is correct |
92 |
Correct |
16 ms |
23788 KB |
Output is correct |
93 |
Correct |
17 ms |
23788 KB |
Output is correct |
94 |
Correct |
16 ms |
23788 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
23788 KB |
Output is correct |
2 |
Correct |
17 ms |
23788 KB |
Output is correct |
3 |
Correct |
16 ms |
23788 KB |
Output is correct |
4 |
Correct |
16 ms |
23788 KB |
Output is correct |
5 |
Correct |
16 ms |
23788 KB |
Output is correct |
6 |
Correct |
16 ms |
23788 KB |
Output is correct |
7 |
Correct |
17 ms |
23788 KB |
Output is correct |
8 |
Correct |
17 ms |
23788 KB |
Output is correct |
9 |
Correct |
16 ms |
23788 KB |
Output is correct |
10 |
Correct |
16 ms |
23788 KB |
Output is correct |
11 |
Correct |
16 ms |
23788 KB |
Output is correct |
12 |
Correct |
16 ms |
23788 KB |
Output is correct |
13 |
Correct |
16 ms |
23788 KB |
Output is correct |
14 |
Correct |
16 ms |
23788 KB |
Output is correct |
15 |
Correct |
16 ms |
23788 KB |
Output is correct |
16 |
Correct |
16 ms |
23788 KB |
Output is correct |
17 |
Correct |
17 ms |
23872 KB |
Output is correct |
18 |
Correct |
16 ms |
23788 KB |
Output is correct |
19 |
Correct |
16 ms |
23788 KB |
Output is correct |
20 |
Correct |
16 ms |
23788 KB |
Output is correct |
21 |
Correct |
16 ms |
23788 KB |
Output is correct |
22 |
Correct |
16 ms |
23916 KB |
Output is correct |
23 |
Correct |
16 ms |
23788 KB |
Output is correct |
24 |
Correct |
16 ms |
23916 KB |
Output is correct |
25 |
Correct |
16 ms |
23916 KB |
Output is correct |
26 |
Correct |
16 ms |
23916 KB |
Output is correct |
27 |
Correct |
16 ms |
23916 KB |
Output is correct |
28 |
Correct |
17 ms |
23936 KB |
Output is correct |
29 |
Correct |
17 ms |
23916 KB |
Output is correct |
30 |
Correct |
17 ms |
23916 KB |
Output is correct |
31 |
Correct |
16 ms |
23916 KB |
Output is correct |
32 |
Correct |
17 ms |
23916 KB |
Output is correct |
33 |
Correct |
17 ms |
23916 KB |
Output is correct |
34 |
Correct |
17 ms |
23788 KB |
Output is correct |
35 |
Correct |
17 ms |
23916 KB |
Output is correct |
36 |
Correct |
17 ms |
23916 KB |
Output is correct |
37 |
Correct |
17 ms |
23916 KB |
Output is correct |
38 |
Correct |
17 ms |
23916 KB |
Output is correct |
39 |
Correct |
17 ms |
24044 KB |
Output is correct |
40 |
Correct |
17 ms |
23916 KB |
Output is correct |
41 |
Correct |
17 ms |
23916 KB |
Output is correct |
42 |
Correct |
17 ms |
23916 KB |
Output is correct |
43 |
Correct |
17 ms |
23808 KB |
Output is correct |
44 |
Correct |
17 ms |
23808 KB |
Output is correct |
45 |
Correct |
17 ms |
23788 KB |
Output is correct |
46 |
Correct |
17 ms |
23788 KB |
Output is correct |
47 |
Correct |
16 ms |
23788 KB |
Output is correct |
48 |
Incorrect |
15 ms |
23788 KB |
Output isn't correct |
49 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
23788 KB |
Output is correct |
2 |
Correct |
17 ms |
23788 KB |
Output is correct |
3 |
Correct |
16 ms |
23788 KB |
Output is correct |
4 |
Correct |
16 ms |
23788 KB |
Output is correct |
5 |
Correct |
16 ms |
23788 KB |
Output is correct |
6 |
Correct |
16 ms |
23788 KB |
Output is correct |
7 |
Correct |
17 ms |
23788 KB |
Output is correct |
8 |
Correct |
17 ms |
23788 KB |
Output is correct |
9 |
Correct |
16 ms |
23788 KB |
Output is correct |
10 |
Correct |
16 ms |
23788 KB |
Output is correct |
11 |
Correct |
16 ms |
23788 KB |
Output is correct |
12 |
Correct |
16 ms |
23788 KB |
Output is correct |
13 |
Correct |
16 ms |
23788 KB |
Output is correct |
14 |
Correct |
16 ms |
23788 KB |
Output is correct |
15 |
Correct |
16 ms |
23788 KB |
Output is correct |
16 |
Correct |
16 ms |
23788 KB |
Output is correct |
17 |
Correct |
17 ms |
23872 KB |
Output is correct |
18 |
Correct |
16 ms |
23788 KB |
Output is correct |
19 |
Correct |
16 ms |
23788 KB |
Output is correct |
20 |
Correct |
16 ms |
23788 KB |
Output is correct |
21 |
Correct |
16 ms |
23788 KB |
Output is correct |
22 |
Correct |
16 ms |
23916 KB |
Output is correct |
23 |
Correct |
16 ms |
23788 KB |
Output is correct |
24 |
Correct |
16 ms |
23916 KB |
Output is correct |
25 |
Correct |
16 ms |
23916 KB |
Output is correct |
26 |
Correct |
16 ms |
23916 KB |
Output is correct |
27 |
Correct |
16 ms |
23916 KB |
Output is correct |
28 |
Correct |
17 ms |
23936 KB |
Output is correct |
29 |
Correct |
17 ms |
23916 KB |
Output is correct |
30 |
Correct |
17 ms |
23916 KB |
Output is correct |
31 |
Correct |
16 ms |
23916 KB |
Output is correct |
32 |
Correct |
17 ms |
23916 KB |
Output is correct |
33 |
Correct |
17 ms |
23916 KB |
Output is correct |
34 |
Correct |
17 ms |
23788 KB |
Output is correct |
35 |
Correct |
17 ms |
23916 KB |
Output is correct |
36 |
Correct |
17 ms |
23916 KB |
Output is correct |
37 |
Correct |
17 ms |
23916 KB |
Output is correct |
38 |
Correct |
17 ms |
23916 KB |
Output is correct |
39 |
Correct |
17 ms |
24044 KB |
Output is correct |
40 |
Correct |
17 ms |
23916 KB |
Output is correct |
41 |
Correct |
17 ms |
23916 KB |
Output is correct |
42 |
Correct |
17 ms |
23916 KB |
Output is correct |
43 |
Correct |
17 ms |
23808 KB |
Output is correct |
44 |
Correct |
17 ms |
23808 KB |
Output is correct |
45 |
Correct |
17 ms |
23788 KB |
Output is correct |
46 |
Correct |
17 ms |
23788 KB |
Output is correct |
47 |
Correct |
16 ms |
23788 KB |
Output is correct |
48 |
Correct |
17 ms |
23788 KB |
Output is correct |
49 |
Correct |
17 ms |
23820 KB |
Output is correct |
50 |
Correct |
17 ms |
23808 KB |
Output is correct |
51 |
Correct |
17 ms |
23800 KB |
Output is correct |
52 |
Correct |
16 ms |
23788 KB |
Output is correct |
53 |
Correct |
17 ms |
23788 KB |
Output is correct |
54 |
Correct |
16 ms |
23788 KB |
Output is correct |
55 |
Correct |
16 ms |
23788 KB |
Output is correct |
56 |
Correct |
16 ms |
23788 KB |
Output is correct |
57 |
Correct |
16 ms |
23788 KB |
Output is correct |
58 |
Correct |
17 ms |
23788 KB |
Output is correct |
59 |
Correct |
17 ms |
23788 KB |
Output is correct |
60 |
Correct |
17 ms |
23788 KB |
Output is correct |
61 |
Correct |
19 ms |
23788 KB |
Output is correct |
62 |
Correct |
16 ms |
23788 KB |
Output is correct |
63 |
Correct |
16 ms |
23788 KB |
Output is correct |
64 |
Correct |
17 ms |
23808 KB |
Output is correct |
65 |
Correct |
16 ms |
23788 KB |
Output is correct |
66 |
Correct |
17 ms |
23800 KB |
Output is correct |
67 |
Correct |
16 ms |
23788 KB |
Output is correct |
68 |
Correct |
42 ms |
31084 KB |
Output is correct |
69 |
Correct |
69 ms |
38380 KB |
Output is correct |
70 |
Correct |
16 ms |
23788 KB |
Output is correct |
71 |
Correct |
96 ms |
45804 KB |
Output is correct |
72 |
Correct |
122 ms |
53228 KB |
Output is correct |
73 |
Correct |
149 ms |
60524 KB |
Output is correct |
74 |
Correct |
176 ms |
67948 KB |
Output is correct |
75 |
Correct |
201 ms |
75244 KB |
Output is correct |
76 |
Correct |
227 ms |
82668 KB |
Output is correct |
77 |
Correct |
255 ms |
90092 KB |
Output is correct |
78 |
Correct |
287 ms |
97388 KB |
Output is correct |
79 |
Correct |
312 ms |
104300 KB |
Output is correct |
80 |
Correct |
343 ms |
110444 KB |
Output is correct |
81 |
Correct |
17 ms |
23788 KB |
Output is correct |
82 |
Correct |
382 ms |
116972 KB |
Output is correct |
83 |
Correct |
392 ms |
123268 KB |
Output is correct |
84 |
Correct |
423 ms |
129132 KB |
Output is correct |
85 |
Correct |
439 ms |
135532 KB |
Output is correct |
86 |
Correct |
476 ms |
142060 KB |
Output is correct |
87 |
Correct |
502 ms |
148472 KB |
Output is correct |
88 |
Correct |
532 ms |
163564 KB |
Output is correct |
89 |
Correct |
548 ms |
161516 KB |
Output is correct |
90 |
Correct |
16 ms |
23788 KB |
Output is correct |
91 |
Correct |
16 ms |
23788 KB |
Output is correct |
92 |
Correct |
16 ms |
23788 KB |
Output is correct |
93 |
Correct |
17 ms |
23788 KB |
Output is correct |
94 |
Correct |
16 ms |
23788 KB |
Output is correct |
95 |
Incorrect |
15 ms |
23788 KB |
Output isn't correct |
96 |
Halted |
0 ms |
0 KB |
- |