oj.uz

Submission #1074007

# Submission time Handle Problem Language Result Execution time Memory
1074007 2024-08-25T06:24:03 Z Ignut Dreaming (IOI13_dreaming) C++17
47 / 100
 110 ms 18900 KB 
// Ignut

#include <bits/stdc++.h>
#include "dreaming.h"

using namespace std;
using ll = long long;

const int INF = 1e9 + 123;
const int MAXN = 1e5 + 123;

vector<pair<int, int>> tree[MAXN];
int dist[MAXN];

void dfs(int v, int par, int d) {
    dist[v] = d;
    for (auto [to, w] : tree[v])
        if (to != par)
            dfs(to, v, d + w); 
}

void FindDist(int source) {
    dfs(source, -1, 0);
}

bool used[MAXN];
vector<int> comp;

void dfs0(int v, int par = -1) {
    used[v] = true;
    comp.push_back(v);
    for (auto [to, w] : tree[v])
        if (to != par)
            dfs0(to, v);
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    for (int i = 0; i < N; i ++) {
        tree[i].clear();
        used[i] = false;
    }
    for (int i = 0; i < M; i ++) {
        tree[A[i]].push_back({B[i], T[i]});
        tree[B[i]].push_back({A[i], T[i]});
    }
    
    vector<int> c;
    for (int i = 0; i < N; i ++) {
        if (used[i]) continue;
        comp.clear();
        dfs0(i);
        FindDist(i);

        int j = i;
        for (int v : comp) if (dist[v] > dist[j]) j = v;
        FindDist(j);

        map<int, int> d1;
        for (int v : comp) d1[v] = dist[v];

        j = i;
        for (int v : comp) if (dist[v] > dist[j]) j = v;
        FindDist(j);

        int ctr = i, maxDist = INF;
        for (int v : comp) {
            // FindDist(j);
            int d = max(d1[v], dist[v]);
            // int dd = 0;
            // FindDist(v);
            // for (int u : comp) dd = max(dd, dist[u]);
            // if (d != dd) {
            //     cout << "not equal!!!\n";
            //     cout << v << " : " << d << ' ' << dd << '\n';
            //     // N /= 0;
            // }
            // d = dd;
            if (d < maxDist) {
                ctr = v;
                maxDist = d;
            }
        }
        c.push_back(ctr);
        // cout << "-- " << ctr << '\n';
    }

    if (c.size() == 2) {
        tree[c[0]].push_back({c[1], L});
        tree[c[1]].push_back({c[0], L});
    }

    int res = 0;
    FindDist(0);
    int j = 0;
    for (int i = 0; i < N; i ++) if (dist[i] > dist[j]) j = i;
    FindDist(j);
    for (int i = 0; i < N; i ++) res = max(res, dist[i]);
    return res;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 15568 KB Output is correct
2 Correct 79 ms 15300 KB Output is correct
3 Correct 51 ms 11864 KB Output is correct
4 Correct 10 ms 4700 KB Output is correct
5 Correct 9 ms 3816 KB Output is correct
6 Correct 18 ms 5504 KB Output is correct
7 Correct 2 ms 2648 KB Output is correct
8 Correct 37 ms 7236 KB Output is correct
9 Correct 50 ms 9700 KB Output is correct
10 Correct 2 ms 2652 KB Output is correct
11 Correct 69 ms 11148 KB Output is correct
12 Correct 89 ms 13012 KB Output is correct
13 Correct 2 ms 2908 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2652 KB Output is correct
2 Correct 1 ms 2648 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 2 ms 2648 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 2 ms 2652 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2788 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 2 ms 2652 KB Output is correct
20 Correct 1 ms 2800 KB Output is correct
21 Correct 2 ms 2652 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2780 KB Output is correct
24 Correct 2 ms 2652 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 15568 KB Output is correct
2 Correct 79 ms 15300 KB Output is correct
3 Correct 51 ms 11864 KB Output is correct
4 Correct 10 ms 4700 KB Output is correct
5 Correct 9 ms 3816 KB Output is correct
6 Correct 18 ms 5504 KB Output is correct
7 Correct 2 ms 2648 KB Output is correct
8 Correct 37 ms 7236 KB Output is correct
9 Correct 50 ms 9700 KB Output is correct
10 Correct 2 ms 2652 KB Output is correct
11 Correct 69 ms 11148 KB Output is correct
12 Correct 89 ms 13012 KB Output is correct
13 Correct 2 ms 2908 KB Output is correct
14 Correct 2 ms 2652 KB Output is correct
15 Correct 1 ms 2648 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 2 ms 2648 KB Output is correct
19 Correct 2 ms 2652 KB Output is correct
20 Correct 1 ms 2652 KB Output is correct
21 Correct 1 ms 2652 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2652 KB Output is correct
24 Correct 1 ms 2652 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 2 ms 2652 KB Output is correct
27 Correct 1 ms 2652 KB Output is correct
28 Correct 1 ms 2788 KB Output is correct
29 Correct 1 ms 2652 KB Output is correct
30 Correct 1 ms 2652 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 2 ms 2652 KB Output is correct
33 Correct 1 ms 2800 KB Output is correct
34 Correct 2 ms 2652 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 1 ms 2780 KB Output is correct
37 Correct 2 ms 2652 KB Output is correct
38 Correct 2 ms 2652 KB Output is correct
39 Correct 82 ms 15568 KB Output is correct
40 Correct 78 ms 15304 KB Output is correct
41 Correct 58 ms 11972 KB Output is correct
42 Correct 10 ms 4444 KB Output is correct
43 Correct 1 ms 2804 KB Output is correct
44 Correct 2 ms 2648 KB Output is correct
45 Correct 2 ms 2652 KB Output is correct
46 Correct 1 ms 2652 KB Output is correct
47 Correct 1 ms 2652 KB Output is correct
48 Correct 1 ms 2648 KB Output is correct
49 Correct 2 ms 2652 KB Output is correct
50 Correct 1 ms 2652 KB Output is correct
51 Correct 1 ms 2652 KB Output is correct
52 Correct 1 ms 2652 KB Output is correct
53 Correct 2 ms 2652 KB Output is correct
54 Correct 1 ms 2652 KB Output is correct
55 Correct 1 ms 2652 KB Output is correct
56 Correct 1 ms 2652 KB Output is correct
57 Correct 103 ms 14372 KB Output is correct
58 Correct 98 ms 12496 KB Output is correct
59 Correct 110 ms 13996 KB Output is correct
60 Correct 98 ms 12072 KB Output is correct
61 Correct 96 ms 14024 KB Output is correct
62 Correct 98 ms 13012 KB Output is correct
63 Correct 94 ms 14432 KB Output is correct
64 Correct 90 ms 14548 KB Output is correct
65 Correct 95 ms 14620 KB Output is correct
66 Correct 94 ms 14796 KB Output is correct
67 Correct 104 ms 14008 KB Output is correct
68 Correct 98 ms 14020 KB Output is correct
69 Correct 92 ms 12752 KB Output is correct
70 Correct 98 ms 12752 KB Output is correct
71 Correct 1 ms 2652 KB Output is correct
72 Correct 3 ms 2908 KB Output is correct
73 Correct 4 ms 2908 KB Output is correct
74 Correct 3 ms 3068 KB Output is correct
75 Correct 3 ms 3068 KB Output is correct
76 Correct 3 ms 2908 KB Output is correct
77 Correct 3 ms 2968 KB Output is correct
78 Correct 3 ms 2908 KB Output is correct
79 Correct 5 ms 3116 KB Output is correct
80 Correct 96 ms 13008 KB Output is correct
81 Correct 97 ms 13000 KB Output is correct
82 Correct 97 ms 14052 KB Output is correct
83 Correct 93 ms 14688 KB Output is correct
84 Correct 2 ms 2844 KB Output is correct
85 Correct 3 ms 2908 KB Output is correct
86 Correct 2 ms 2908 KB Output is correct
87 Correct 3 ms 2908 KB Output is correct
88 Correct 2 ms 2908 KB Output is correct
89 Correct 3 ms 2908 KB Output is correct
90 Correct 2 ms 2908 KB Output is correct
91 Correct 3 ms 2908 KB Output is correct
92 Correct 3 ms 2908 KB Output is correct
93 Correct 3 ms 2908 KB Output is correct
94 Correct 1 ms 2652 KB Output is correct
95 Correct 1 ms 2652 KB Output is correct
96 Correct 1 ms 2652 KB Output is correct
97 Correct 1 ms 2800 KB Output is correct
98 Correct 1 ms 2652 KB Output is correct
99 Correct 1 ms 2652 KB Output is correct
100 Correct 1 ms 2652 KB Output is correct
101 Correct 1 ms 2652 KB Output is correct
102 Correct 1 ms 2652 KB Output is correct
103 Correct 1 ms 2652 KB Output is correct
104 Correct 8 ms 3676 KB Output is correct
105 Correct 21 ms 5464 KB Output is correct
106 Correct 2 ms 2648 KB Output is correct
107 Correct 36 ms 7276 KB Output is correct
108 Correct 47 ms 9684 KB Output is correct
109 Correct 2 ms 2648 KB Output is correct
110 Correct 65 ms 11224 KB Output is correct
111 Correct 84 ms 13104 KB Output is correct
112 Correct 2 ms 2908 KB Output is correct
113 Correct 109 ms 18900 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 6384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2652 KB Output is correct
2 Correct 1 ms 2648 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 2 ms 2648 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 2 ms 2652 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2788 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 2 ms 2652 KB Output is correct
20 Correct 1 ms 2800 KB Output is correct
21 Correct 2 ms 2652 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2780 KB Output is correct
24 Correct 2 ms 2652 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct
26 Correct 1 ms 2652 KB Output is correct
27 Correct 2 ms 2844 KB Output is correct
28 Correct 2 ms 2908 KB Output is correct
29 Incorrect 1 ms 2652 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 15568 KB Output is correct
2 Correct 79 ms 15300 KB Output is correct
3 Correct 51 ms 11864 KB Output is correct
4 Correct 10 ms 4700 KB Output is correct
5 Correct 9 ms 3816 KB Output is correct
6 Correct 18 ms 5504 KB Output is correct
7 Correct 2 ms 2648 KB Output is correct
8 Correct 37 ms 7236 KB Output is correct
9 Correct 50 ms 9700 KB Output is correct
10 Correct 2 ms 2652 KB Output is correct
11 Correct 69 ms 11148 KB Output is correct
12 Correct 89 ms 13012 KB Output is correct
13 Correct 2 ms 2908 KB Output is correct
14 Correct 2 ms 2652 KB Output is correct
15 Correct 1 ms 2648 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 2 ms 2648 KB Output is correct
19 Correct 2 ms 2652 KB Output is correct
20 Correct 1 ms 2652 KB Output is correct
21 Correct 1 ms 2652 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2652 KB Output is correct
24 Correct 1 ms 2652 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 2 ms 2652 KB Output is correct
27 Correct 1 ms 2652 KB Output is correct
28 Correct 1 ms 2788 KB Output is correct
29 Correct 1 ms 2652 KB Output is correct
30 Correct 1 ms 2652 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 2 ms 2652 KB Output is correct
33 Correct 1 ms 2800 KB Output is correct
34 Correct 2 ms 2652 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 1 ms 2780 KB Output is correct
37 Correct 2 ms 2652 KB Output is correct
38 Correct 2 ms 2652 KB Output is correct
39 Correct 82 ms 15568 KB Output is correct
40 Correct 78 ms 15304 KB Output is correct
41 Correct 58 ms 11972 KB Output is correct
42 Correct 10 ms 4444 KB Output is correct
43 Correct 1 ms 2804 KB Output is correct
44 Correct 2 ms 2648 KB Output is correct
45 Correct 2 ms 2652 KB Output is correct
46 Correct 1 ms 2652 KB Output is correct
47 Correct 1 ms 2652 KB Output is correct
48 Correct 1 ms 2648 KB Output is correct
49 Correct 2 ms 2652 KB Output is correct
50 Correct 1 ms 2652 KB Output is correct
51 Correct 1 ms 2652 KB Output is correct
52 Correct 1 ms 2652 KB Output is correct
53 Correct 2 ms 2652 KB Output is correct
54 Correct 1 ms 2652 KB Output is correct
55 Correct 1 ms 2652 KB Output is correct
56 Correct 1 ms 2652 KB Output is correct
57 Correct 103 ms 14372 KB Output is correct
58 Correct 98 ms 12496 KB Output is correct
59 Correct 110 ms 13996 KB Output is correct
60 Correct 98 ms 12072 KB Output is correct
61 Correct 96 ms 14024 KB Output is correct
62 Correct 98 ms 13012 KB Output is correct
63 Correct 94 ms 14432 KB Output is correct
64 Correct 90 ms 14548 KB Output is correct
65 Correct 95 ms 14620 KB Output is correct
66 Correct 94 ms 14796 KB Output is correct
67 Correct 104 ms 14008 KB Output is correct
68 Correct 98 ms 14020 KB Output is correct
69 Correct 92 ms 12752 KB Output is correct
70 Correct 98 ms 12752 KB Output is correct
71 Correct 1 ms 2652 KB Output is correct
72 Correct 3 ms 2908 KB Output is correct
73 Correct 4 ms 2908 KB Output is correct
74 Correct 3 ms 3068 KB Output is correct
75 Correct 3 ms 3068 KB Output is correct
76 Correct 3 ms 2908 KB Output is correct
77 Correct 3 ms 2968 KB Output is correct
78 Correct 3 ms 2908 KB Output is correct
79 Correct 5 ms 3116 KB Output is correct
80 Correct 96 ms 13008 KB Output is correct
81 Correct 97 ms 13000 KB Output is correct
82 Correct 97 ms 14052 KB Output is correct
83 Correct 93 ms 14688 KB Output is correct
84 Correct 2 ms 2844 KB Output is correct
85 Correct 3 ms 2908 KB Output is correct
86 Correct 2 ms 2908 KB Output is correct
87 Correct 3 ms 2908 KB Output is correct
88 Correct 2 ms 2908 KB Output is correct
89 Correct 3 ms 2908 KB Output is correct
90 Correct 2 ms 2908 KB Output is correct
91 Correct 3 ms 2908 KB Output is correct
92 Correct 3 ms 2908 KB Output is correct
93 Correct 3 ms 2908 KB Output is correct
94 Correct 1 ms 2652 KB Output is correct
95 Correct 1 ms 2652 KB Output is correct
96 Correct 1 ms 2652 KB Output is correct
97 Correct 1 ms 2800 KB Output is correct
98 Correct 1 ms 2652 KB Output is correct
99 Correct 1 ms 2652 KB Output is correct
100 Correct 1 ms 2652 KB Output is correct
101 Correct 1 ms 2652 KB Output is correct
102 Correct 1 ms 2652 KB Output is correct
103 Correct 1 ms 2652 KB Output is correct
104 Correct 8 ms 3676 KB Output is correct
105 Correct 21 ms 5464 KB Output is correct
106 Correct 2 ms 2648 KB Output is correct
107 Correct 36 ms 7276 KB Output is correct
108 Correct 47 ms 9684 KB Output is correct
109 Correct 2 ms 2648 KB Output is correct
110 Correct 65 ms 11224 KB Output is correct
111 Correct 84 ms 13104 KB Output is correct
112 Correct 2 ms 2908 KB Output is correct
113 Correct 109 ms 18900 KB Output is correct
114 Incorrect 17 ms 6384 KB Output isn't correct
115 Halted 0 ms 0 KB -