oj.uz

Submission #358577

# Submission time Handle Problem Language Result Execution time Memory
358577 2021-01-25T21:07:52 Z idk321 Traffic (IOI10_traffic) C++11
50 / 100
 548 ms 163564 KB 
#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];
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory 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

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory 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

Subtask #3
0 / 25.0

# Verdict Execution time Memory 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 -

Subtask #4
0 / 25.0

# Verdict Execution time Memory 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 -