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Submission #367097

# Submission time Handle Problem Language Result Execution time Memory
367097 2021-02-16T09:26:01 Z quynx Traffic (IOI10_traffic) C++17
50 / 100
 515 ms 160492 KB 
#include <bits/stdc++.h>
using namespace std;
const int MX = 1e6;
const int INF = 2e9+1;

int fans = 0;
int nodes[MX], people[MX], child[MX];
vector<vector<int>> adj(MX);

void dfs(int parent, int node) {
    int tmp = 0;
    for (auto& u: adj[node]) {
        if (u == parent) continue;
        tmp += nodes[u];
        dfs(node, u);
        tmp += child[u];
        child[node] += tmp;
        people[node] = max(people[node], child[u] + nodes[u]);
    }
    people[node] = max(people[node], fans - tmp - nodes[node]);
}

int LocateCentre(int N, int P[], int S[], int D[]) {
    for (int i = 0; i < N; ++i) {
        fans += (nodes[i] = P[i]);
        if (i < N-1) {
            adj[S[i]].push_back(D[i]);
            adj[D[i]].push_back(S[i]);
        }
    }
    dfs(-1,0);
    int ans = 0, minC = INF;;
    for (int i = 0; i < N; ++i) {
        if (minC > people[i]) {
            ans = i;
            minC = people[i];
        }
    }
    return ans;
}

//int main() {
    //ios_base::sync_with_stdio(false); cin.tie(nullptr);
    //int N = 5, P[] = {10,10,10,20,20}, S[] = {0,1,2,3}, D[] = {2,2,3,4};
    //cout << LocateCentre(N,P,S,D) << "\n";
//}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23788 KB Output is correct
2 Correct 15 ms 23788 KB Output is correct
3 Correct 15 ms 23788 KB Output is correct
4 Correct 15 ms 23788 KB Output is correct
5 Correct 17 ms 23788 KB Output is correct
6 Correct 16 ms 23808 KB Output is correct
7 Correct 15 ms 23788 KB Output is correct
8 Correct 15 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 18 ms 23788 KB Output is correct
11 Correct 18 ms 23788 KB Output is correct
12 Correct 15 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 15 ms 23788 KB Output is correct
16 Correct 15 ms 23788 KB Output is correct
17 Correct 16 ms 23788 KB Output is correct
18 Correct 15 ms 23788 KB Output is correct
19 Correct 16 ms 23788 KB Output is correct
20 Correct 16 ms 23916 KB Output is correct
21 Correct 15 ms 23788 KB Output is correct
22 Correct 15 ms 23916 KB Output is correct
23 Correct 17 ms 23788 KB Output is correct
24 Correct 15 ms 23916 KB Output is correct
25 Correct 17 ms 23916 KB Output is correct
26 Correct 15 ms 23916 KB Output is correct
27 Correct 17 ms 23916 KB Output is correct
28 Correct 15 ms 23916 KB Output is correct
29 Correct 18 ms 23916 KB Output is correct
30 Correct 16 ms 23916 KB Output is correct
31 Correct 15 ms 23916 KB Output is correct
32 Correct 15 ms 23916 KB Output is correct
33 Correct 16 ms 23916 KB Output is correct
34 Correct 15 ms 23788 KB Output is correct
35 Correct 16 ms 23916 KB Output is correct
36 Correct 18 ms 23916 KB Output is correct
37 Correct 16 ms 23916 KB Output is correct
38 Correct 17 ms 23916 KB Output is correct
39 Correct 16 ms 23916 KB Output is correct
40 Correct 15 ms 23916 KB Output is correct
41 Correct 16 ms 23916 KB Output is correct
42 Correct 16 ms 24044 KB Output is correct
43 Correct 16 ms 23788 KB Output is correct
44 Correct 15 ms 23788 KB Output is correct
45 Correct 15 ms 23788 KB Output is correct
46 Correct 15 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 15 ms 23788 KB Output is correct
2 Correct 15 ms 23788 KB Output is correct
3 Correct 15 ms 23788 KB Output is correct
4 Correct 15 ms 23788 KB Output is correct
5 Correct 17 ms 23788 KB Output is correct
6 Correct 16 ms 23808 KB Output is correct
7 Correct 15 ms 23788 KB Output is correct
8 Correct 15 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 18 ms 23788 KB Output is correct
11 Correct 18 ms 23788 KB Output is correct
12 Correct 15 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 15 ms 23788 KB Output is correct
16 Correct 15 ms 23788 KB Output is correct
17 Correct 16 ms 23788 KB Output is correct
18 Correct 15 ms 23788 KB Output is correct
19 Correct 16 ms 23788 KB Output is correct
20 Correct 16 ms 23916 KB Output is correct
21 Correct 15 ms 23788 KB Output is correct
22 Correct 15 ms 23916 KB Output is correct
23 Correct 17 ms 23788 KB Output is correct
24 Correct 15 ms 23916 KB Output is correct
25 Correct 17 ms 23916 KB Output is correct
26 Correct 15 ms 23916 KB Output is correct
27 Correct 17 ms 23916 KB Output is correct
28 Correct 15 ms 23916 KB Output is correct
29 Correct 18 ms 23916 KB Output is correct
30 Correct 16 ms 23916 KB Output is correct
31 Correct 15 ms 23916 KB Output is correct
32 Correct 15 ms 23916 KB Output is correct
33 Correct 16 ms 23916 KB Output is correct
34 Correct 15 ms 23788 KB Output is correct
35 Correct 16 ms 23916 KB Output is correct
36 Correct 18 ms 23916 KB Output is correct
37 Correct 16 ms 23916 KB Output is correct
38 Correct 17 ms 23916 KB Output is correct
39 Correct 16 ms 23916 KB Output is correct
40 Correct 15 ms 23916 KB Output is correct
41 Correct 16 ms 23916 KB Output is correct
42 Correct 16 ms 24044 KB Output is correct
43 Correct 16 ms 23788 KB Output is correct
44 Correct 15 ms 23788 KB Output is correct
45 Correct 15 ms 23788 KB Output is correct
46 Correct 15 ms 23788 KB Output is correct
47 Correct 16 ms 23788 KB Output is correct
48 Correct 15 ms 23788 KB Output is correct
49 Correct 15 ms 23788 KB Output is correct
50 Correct 18 ms 23916 KB Output is correct
51 Correct 16 ms 23788 KB Output is correct
52 Correct 16 ms 23788 KB Output is correct
53 Correct 15 ms 23788 KB Output is correct
54 Correct 15 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 23916 KB Output is correct
59 Correct 15 ms 23788 KB Output is correct
60 Correct 15 ms 23788 KB Output is correct
61 Correct 16 ms 23788 KB Output is correct
62 Correct 15 ms 23788 KB Output is correct
63 Correct 16 ms 23788 KB Output is correct
64 Correct 15 ms 23788 KB Output is correct
65 Correct 16 ms 23788 KB Output is correct
66 Correct 16 ms 23788 KB Output is correct
67 Correct 15 ms 23788 KB Output is correct
68 Correct 39 ms 31468 KB Output is correct
69 Correct 64 ms 38764 KB Output is correct
70 Correct 17 ms 23788 KB Output is correct
71 Correct 92 ms 46464 KB Output is correct
72 Correct 118 ms 53868 KB Output is correct
73 Correct 137 ms 61548 KB Output is correct
74 Correct 161 ms 69100 KB Output is correct
75 Correct 184 ms 76652 KB Output is correct
76 Correct 222 ms 84204 KB Output is correct
77 Correct 245 ms 91764 KB Output is correct
78 Correct 270 ms 99436 KB Output is correct
79 Correct 300 ms 106860 KB Output is correct
80 Correct 319 ms 114532 KB Output is correct
81 Correct 16 ms 23788 KB Output is correct
82 Correct 347 ms 121964 KB Output is correct
83 Correct 366 ms 129644 KB Output is correct
84 Correct 387 ms 137068 KB Output is correct
85 Correct 420 ms 144620 KB Output is correct
86 Correct 446 ms 152172 KB Output is correct
87 Correct 493 ms 159140 KB Output is correct
88 Correct 482 ms 154476 KB Output is correct
89 Correct 515 ms 160492 KB Output is correct
90 Correct 17 ms 23936 KB Output is correct
91 Correct 15 ms 23788 KB Output is correct
92 Correct 15 ms 23788 KB Output is correct
93 Correct 16 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 15 ms 23788 KB Output is correct
2 Correct 15 ms 23788 KB Output is correct
3 Correct 15 ms 23788 KB Output is correct
4 Correct 15 ms 23788 KB Output is correct
5 Correct 17 ms 23788 KB Output is correct
6 Correct 16 ms 23808 KB Output is correct
7 Correct 15 ms 23788 KB Output is correct
8 Correct 15 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 18 ms 23788 KB Output is correct
11 Correct 18 ms 23788 KB Output is correct
12 Correct 15 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 15 ms 23788 KB Output is correct
16 Correct 15 ms 23788 KB Output is correct
17 Correct 16 ms 23788 KB Output is correct
18 Correct 15 ms 23788 KB Output is correct
19 Correct 16 ms 23788 KB Output is correct
20 Correct 16 ms 23916 KB Output is correct
21 Correct 15 ms 23788 KB Output is correct
22 Correct 15 ms 23916 KB Output is correct
23 Correct 17 ms 23788 KB Output is correct
24 Correct 15 ms 23916 KB Output is correct
25 Correct 17 ms 23916 KB Output is correct
26 Correct 15 ms 23916 KB Output is correct
27 Correct 17 ms 23916 KB Output is correct
28 Correct 15 ms 23916 KB Output is correct
29 Correct 18 ms 23916 KB Output is correct
30 Correct 16 ms 23916 KB Output is correct
31 Correct 15 ms 23916 KB Output is correct
32 Correct 15 ms 23916 KB Output is correct
33 Correct 16 ms 23916 KB Output is correct
34 Correct 15 ms 23788 KB Output is correct
35 Correct 16 ms 23916 KB Output is correct
36 Correct 18 ms 23916 KB Output is correct
37 Correct 16 ms 23916 KB Output is correct
38 Correct 17 ms 23916 KB Output is correct
39 Correct 16 ms 23916 KB Output is correct
40 Correct 15 ms 23916 KB Output is correct
41 Correct 16 ms 23916 KB Output is correct
42 Correct 16 ms 24044 KB Output is correct
43 Correct 16 ms 23788 KB Output is correct
44 Correct 15 ms 23788 KB Output is correct
45 Correct 15 ms 23788 KB Output is correct
46 Correct 15 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 15 ms 23788 KB Output is correct
2 Correct 15 ms 23788 KB Output is correct
3 Correct 15 ms 23788 KB Output is correct
4 Correct 15 ms 23788 KB Output is correct
5 Correct 17 ms 23788 KB Output is correct
6 Correct 16 ms 23808 KB Output is correct
7 Correct 15 ms 23788 KB Output is correct
8 Correct 15 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 18 ms 23788 KB Output is correct
11 Correct 18 ms 23788 KB Output is correct
12 Correct 15 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 15 ms 23788 KB Output is correct
16 Correct 15 ms 23788 KB Output is correct
17 Correct 16 ms 23788 KB Output is correct
18 Correct 15 ms 23788 KB Output is correct
19 Correct 16 ms 23788 KB Output is correct
20 Correct 16 ms 23916 KB Output is correct
21 Correct 15 ms 23788 KB Output is correct
22 Correct 15 ms 23916 KB Output is correct
23 Correct 17 ms 23788 KB Output is correct
24 Correct 15 ms 23916 KB Output is correct
25 Correct 17 ms 23916 KB Output is correct
26 Correct 15 ms 23916 KB Output is correct
27 Correct 17 ms 23916 KB Output is correct
28 Correct 15 ms 23916 KB Output is correct
29 Correct 18 ms 23916 KB Output is correct
30 Correct 16 ms 23916 KB Output is correct
31 Correct 15 ms 23916 KB Output is correct
32 Correct 15 ms 23916 KB Output is correct
33 Correct 16 ms 23916 KB Output is correct
34 Correct 15 ms 23788 KB Output is correct
35 Correct 16 ms 23916 KB Output is correct
36 Correct 18 ms 23916 KB Output is correct
37 Correct 16 ms 23916 KB Output is correct
38 Correct 17 ms 23916 KB Output is correct
39 Correct 16 ms 23916 KB Output is correct
40 Correct 15 ms 23916 KB Output is correct
41 Correct 16 ms 23916 KB Output is correct
42 Correct 16 ms 24044 KB Output is correct
43 Correct 16 ms 23788 KB Output is correct
44 Correct 15 ms 23788 KB Output is correct
45 Correct 15 ms 23788 KB Output is correct
46 Correct 15 ms 23788 KB Output is correct
47 Correct 16 ms 23788 KB Output is correct
48 Correct 15 ms 23788 KB Output is correct
49 Correct 15 ms 23788 KB Output is correct
50 Correct 18 ms 23916 KB Output is correct
51 Correct 16 ms 23788 KB Output is correct
52 Correct 16 ms 23788 KB Output is correct
53 Correct 15 ms 23788 KB Output is correct
54 Correct 15 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 23916 KB Output is correct
59 Correct 15 ms 23788 KB Output is correct
60 Correct 15 ms 23788 KB Output is correct
61 Correct 16 ms 23788 KB Output is correct
62 Correct 15 ms 23788 KB Output is correct
63 Correct 16 ms 23788 KB Output is correct
64 Correct 15 ms 23788 KB Output is correct
65 Correct 16 ms 23788 KB Output is correct
66 Correct 16 ms 23788 KB Output is correct
67 Correct 15 ms 23788 KB Output is correct
68 Correct 39 ms 31468 KB Output is correct
69 Correct 64 ms 38764 KB Output is correct
70 Correct 17 ms 23788 KB Output is correct
71 Correct 92 ms 46464 KB Output is correct
72 Correct 118 ms 53868 KB Output is correct
73 Correct 137 ms 61548 KB Output is correct
74 Correct 161 ms 69100 KB Output is correct
75 Correct 184 ms 76652 KB Output is correct
76 Correct 222 ms 84204 KB Output is correct
77 Correct 245 ms 91764 KB Output is correct
78 Correct 270 ms 99436 KB Output is correct
79 Correct 300 ms 106860 KB Output is correct
80 Correct 319 ms 114532 KB Output is correct
81 Correct 16 ms 23788 KB Output is correct
82 Correct 347 ms 121964 KB Output is correct
83 Correct 366 ms 129644 KB Output is correct
84 Correct 387 ms 137068 KB Output is correct
85 Correct 420 ms 144620 KB Output is correct
86 Correct 446 ms 152172 KB Output is correct
87 Correct 493 ms 159140 KB Output is correct
88 Correct 482 ms 154476 KB Output is correct
89 Correct 515 ms 160492 KB Output is correct
90 Correct 17 ms 23936 KB Output is correct
91 Correct 15 ms 23788 KB Output is correct
92 Correct 15 ms 23788 KB Output is correct
93 Correct 16 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 -