oj.uz

Submission #962070

# Submission time Handle Problem Language Result Execution time Memory
962070 2024-04-13T06:38:07 Z danikoynov Dreaming (IOI13_dreaming) C++14
47 / 100
 63 ms 17044 KB 
#include "dreaming.h"
#include<bits/stdc++.h>


using namespace std;
typedef long long ll;

const int maxn = 1e5 + 10;

vector < pair < int, int > > adj[maxn];

int used[maxn], depth[maxn];
int max_depth[maxn], sec[maxn];
void calc(int v, int p)
{
    max_depth[v] = 0;
    for (pair < int, int > nb : adj[v])
    {
        int u = nb.first;
        if (u == p)
            continue;
        depth[u] = depth[v] + nb.second;
        calc(u, v);
        int vl = max_depth[u] + nb.second;
        if (vl > max_depth[v])
        {
             sec[v] = max_depth[v];
             max_depth[v] = vl;
        }
        else
     if (vl > sec[v])
     {
          sec[v] = vl;
     }
        ///max_depth[v] = max(max_depth[v], max_depth[u] + nb.second);
    }
}
vector < int > ord;
void trav(int v, int p)
{
    ord.push_back(v);
    used[v] = 1;
    for (pair < int, int > nb : adj[v])
    {
        if (nb.first == p)
            continue;
        trav(nb.first, v);
    }
}

int dist;

void dfs(int v, int p, int lon)
{

    //cout << "dfs " << v << " " << p << " " << lon << endl;

    //cout << val << " " << sec << endl;
    dist = min(dist, max(lon, max_depth[v]));

    if (lon >= max_depth[v])
     return;

    for (pair < int, int > nb : adj[v])
    {
        int u = nb.first;
        if (u == p)
            continue;
        if (max_depth[u] + nb.second == max_depth[v])
        {
             dfs(u, v, max(lon, sec[v]) + nb.second);
             return;
        }
    }
}
int cap;

int path[maxn];
void bfs(int v)
{
    for (int w : ord)
        path[w] = -1;
    path[v] = 0;
    queue < int > q;
    q.push(v);
    while(!q.empty())
    {
        v = q.front();
        q.pop();
        for (pair <int, int > nb : adj[v])
        {
            if (path[nb.first] == -1)
            {
                path[nb.first] = path[v] + nb.second;
                q.push(nb.first);
            }
        }
    }
}
int find_distance(int v)
{
    ord.clear();
    trav(v, -1);
    dist = 2e9;
     calc(v, -1);
     dfs(v, -1, 0);

    /**for (int w : ord)
    {
        calc(w, -1);
        dist = min(dist, max_depth[w]);
    }*/
    bfs(v);
    int ds = v;
    for (int u : ord)
        if (path[u] > path[ds])
            ds = u;
    bfs(ds);
    for (int u : ord)
        if (path[u] > cap)
            cap = path[u];
    return dist;
}


int travelTime(int N, int M, int L, int A[], int B[], int T[])
{

    for (int i = 0; i < M; i ++)
    {
        adj[A[i]].push_back({B[i], T[i]});
        adj[B[i]].push_back({A[i], T[i]});
    }

    //cout << find_distance(1) << endl;
    //exit(0);
    vector < int > values;
    for (int i = 0; i < N; i ++)
    {
        if (!used[i])
            values.push_back(find_distance(i));
    }


    //for (int cur : values)
    //cout << cur << " ";
    //cout << endl;
    sort(values.begin(), values.end());

    int sz = values.size();
    int res = values[sz - 1] + values[sz - 2] + L;
    assert(sz <= 2);
    if (sz >= 3)
        res = max(res, values[sz - 2] + values[sz - 3] + 2 * L);
    res = max(res, cap);
    return res;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 13276 KB Output is correct
2 Correct 32 ms 12760 KB Output is correct
3 Correct 33 ms 11928 KB Output is correct
4 Correct 6 ms 6748 KB Output is correct
5 Correct 6 ms 6236 KB Output is correct
6 Correct 10 ms 7516 KB Output is correct
7 Correct 2 ms 5724 KB Output is correct
8 Correct 19 ms 8668 KB Output is correct
9 Correct 27 ms 10756 KB Output is correct
10 Correct 2 ms 5724 KB Output is correct
11 Correct 38 ms 10904 KB Output is correct
12 Correct 37 ms 11984 KB Output is correct
13 Correct 2 ms 5724 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5588 KB Output is correct
2 Correct 2 ms 5720 KB Output is correct
3 Correct 2 ms 5724 KB Output is correct
4 Correct 1 ms 5724 KB Output is correct
5 Correct 2 ms 5732 KB Output is correct
6 Correct 2 ms 5720 KB Output is correct
7 Correct 1 ms 5724 KB Output is correct
8 Correct 1 ms 5724 KB Output is correct
9 Correct 1 ms 5724 KB Output is correct
10 Correct 1 ms 5724 KB Output is correct
11 Correct 2 ms 5724 KB Output is correct
12 Correct 1 ms 5676 KB Output is correct
13 Correct 1 ms 5724 KB Output is correct
14 Correct 2 ms 5720 KB Output is correct
15 Correct 1 ms 5720 KB Output is correct
16 Correct 1 ms 5724 KB Output is correct
17 Correct 1 ms 5724 KB Output is correct
18 Correct 1 ms 5724 KB Output is correct
19 Correct 1 ms 5724 KB Output is correct
20 Correct 2 ms 5720 KB Output is correct
21 Correct 1 ms 5724 KB Output is correct
22 Correct 2 ms 5724 KB Output is correct
23 Correct 1 ms 5724 KB Output is correct
24 Correct 1 ms 5724 KB Output is correct
25 Correct 1 ms 5724 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 13276 KB Output is correct
2 Correct 32 ms 12760 KB Output is correct
3 Correct 33 ms 11928 KB Output is correct
4 Correct 6 ms 6748 KB Output is correct
5 Correct 6 ms 6236 KB Output is correct
6 Correct 10 ms 7516 KB Output is correct
7 Correct 2 ms 5724 KB Output is correct
8 Correct 19 ms 8668 KB Output is correct
9 Correct 27 ms 10756 KB Output is correct
10 Correct 2 ms 5724 KB Output is correct
11 Correct 38 ms 10904 KB Output is correct
12 Correct 37 ms 11984 KB Output is correct
13 Correct 2 ms 5724 KB Output is correct
14 Correct 2 ms 5588 KB Output is correct
15 Correct 2 ms 5720 KB Output is correct
16 Correct 2 ms 5724 KB Output is correct
17 Correct 1 ms 5724 KB Output is correct
18 Correct 2 ms 5732 KB Output is correct
19 Correct 2 ms 5720 KB Output is correct
20 Correct 1 ms 5724 KB Output is correct
21 Correct 1 ms 5724 KB Output is correct
22 Correct 1 ms 5724 KB Output is correct
23 Correct 1 ms 5724 KB Output is correct
24 Correct 2 ms 5724 KB Output is correct
25 Correct 1 ms 5676 KB Output is correct
26 Correct 1 ms 5724 KB Output is correct
27 Correct 2 ms 5720 KB Output is correct
28 Correct 1 ms 5720 KB Output is correct
29 Correct 1 ms 5724 KB Output is correct
30 Correct 1 ms 5724 KB Output is correct
31 Correct 1 ms 5724 KB Output is correct
32 Correct 1 ms 5724 KB Output is correct
33 Correct 2 ms 5720 KB Output is correct
34 Correct 1 ms 5724 KB Output is correct
35 Correct 2 ms 5724 KB Output is correct
36 Correct 1 ms 5724 KB Output is correct
37 Correct 1 ms 5724 KB Output is correct
38 Correct 1 ms 5724 KB Output is correct
39 Correct 37 ms 13016 KB Output is correct
40 Correct 34 ms 12736 KB Output is correct
41 Correct 24 ms 11992 KB Output is correct
42 Correct 9 ms 6748 KB Output is correct
43 Correct 1 ms 5724 KB Output is correct
44 Correct 2 ms 5724 KB Output is correct
45 Correct 1 ms 5724 KB Output is correct
46 Correct 1 ms 5724 KB Output is correct
47 Correct 2 ms 5724 KB Output is correct
48 Correct 2 ms 5724 KB Output is correct
49 Correct 1 ms 5724 KB Output is correct
50 Correct 1 ms 5732 KB Output is correct
51 Correct 2 ms 5724 KB Output is correct
52 Correct 1 ms 5720 KB Output is correct
53 Correct 1 ms 5724 KB Output is correct
54 Correct 1 ms 5976 KB Output is correct
55 Correct 1 ms 5724 KB Output is correct
56 Correct 1 ms 5724 KB Output is correct
57 Correct 43 ms 10464 KB Output is correct
58 Correct 41 ms 10200 KB Output is correct
59 Correct 46 ms 10292 KB Output is correct
60 Correct 44 ms 10116 KB Output is correct
61 Correct 48 ms 10292 KB Output is correct
62 Correct 42 ms 10020 KB Output is correct
63 Correct 46 ms 10196 KB Output is correct
64 Correct 45 ms 10144 KB Output is correct
65 Correct 47 ms 10200 KB Output is correct
66 Correct 39 ms 10192 KB Output is correct
67 Correct 43 ms 10192 KB Output is correct
68 Correct 51 ms 10192 KB Output is correct
69 Correct 48 ms 10084 KB Output is correct
70 Correct 47 ms 10060 KB Output is correct
71 Correct 1 ms 5724 KB Output is correct
72 Correct 3 ms 5724 KB Output is correct
73 Correct 2 ms 5724 KB Output is correct
74 Correct 2 ms 5724 KB Output is correct
75 Correct 2 ms 5724 KB Output is correct
76 Correct 2 ms 5724 KB Output is correct
77 Correct 2 ms 5724 KB Output is correct
78 Correct 3 ms 5724 KB Output is correct
79 Correct 2 ms 5724 KB Output is correct
80 Correct 55 ms 10604 KB Output is correct
81 Correct 43 ms 10380 KB Output is correct
82 Correct 41 ms 10196 KB Output is correct
83 Correct 42 ms 10192 KB Output is correct
84 Correct 2 ms 5724 KB Output is correct
85 Correct 2 ms 5740 KB Output is correct
86 Correct 2 ms 5724 KB Output is correct
87 Correct 3 ms 5724 KB Output is correct
88 Correct 2 ms 5724 KB Output is correct
89 Correct 2 ms 5724 KB Output is correct
90 Correct 2 ms 5724 KB Output is correct
91 Correct 4 ms 5724 KB Output is correct
92 Correct 2 ms 5724 KB Output is correct
93 Correct 2 ms 5724 KB Output is correct
94 Correct 1 ms 5724 KB Output is correct
95 Correct 1 ms 5724 KB Output is correct
96 Correct 1 ms 5724 KB Output is correct
97 Correct 1 ms 5556 KB Output is correct
98 Correct 1 ms 5724 KB Output is correct
99 Correct 2 ms 5724 KB Output is correct
100 Correct 1 ms 5724 KB Output is correct
101 Correct 2 ms 5724 KB Output is correct
102 Correct 1 ms 5724 KB Output is correct
103 Correct 2 ms 5724 KB Output is correct
104 Correct 7 ms 6288 KB Output is correct
105 Correct 12 ms 7512 KB Output is correct
106 Correct 2 ms 5724 KB Output is correct
107 Correct 19 ms 8792 KB Output is correct
108 Correct 24 ms 10716 KB Output is correct
109 Correct 1 ms 5720 KB Output is correct
110 Correct 43 ms 10896 KB Output is correct
111 Correct 44 ms 11996 KB Output is correct
112 Correct 2 ms 5720 KB Output is correct
113 Correct 63 ms 17044 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Runtime error 26 ms 16080 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5588 KB Output is correct
2 Correct 2 ms 5720 KB Output is correct
3 Correct 2 ms 5724 KB Output is correct
4 Correct 1 ms 5724 KB Output is correct
5 Correct 2 ms 5732 KB Output is correct
6 Correct 2 ms 5720 KB Output is correct
7 Correct 1 ms 5724 KB Output is correct
8 Correct 1 ms 5724 KB Output is correct
9 Correct 1 ms 5724 KB Output is correct
10 Correct 1 ms 5724 KB Output is correct
11 Correct 2 ms 5724 KB Output is correct
12 Correct 1 ms 5676 KB Output is correct
13 Correct 1 ms 5724 KB Output is correct
14 Correct 2 ms 5720 KB Output is correct
15 Correct 1 ms 5720 KB Output is correct
16 Correct 1 ms 5724 KB Output is correct
17 Correct 1 ms 5724 KB Output is correct
18 Correct 1 ms 5724 KB Output is correct
19 Correct 1 ms 5724 KB Output is correct
20 Correct 2 ms 5720 KB Output is correct
21 Correct 1 ms 5724 KB Output is correct
22 Correct 2 ms 5724 KB Output is correct
23 Correct 1 ms 5724 KB Output is correct
24 Correct 1 ms 5724 KB Output is correct
25 Correct 1 ms 5724 KB Output is correct
26 Runtime error 7 ms 11352 KB Execution killed with signal 6
27 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 13276 KB Output is correct
2 Correct 32 ms 12760 KB Output is correct
3 Correct 33 ms 11928 KB Output is correct
4 Correct 6 ms 6748 KB Output is correct
5 Correct 6 ms 6236 KB Output is correct
6 Correct 10 ms 7516 KB Output is correct
7 Correct 2 ms 5724 KB Output is correct
8 Correct 19 ms 8668 KB Output is correct
9 Correct 27 ms 10756 KB Output is correct
10 Correct 2 ms 5724 KB Output is correct
11 Correct 38 ms 10904 KB Output is correct
12 Correct 37 ms 11984 KB Output is correct
13 Correct 2 ms 5724 KB Output is correct
14 Correct 2 ms 5588 KB Output is correct
15 Correct 2 ms 5720 KB Output is correct
16 Correct 2 ms 5724 KB Output is correct
17 Correct 1 ms 5724 KB Output is correct
18 Correct 2 ms 5732 KB Output is correct
19 Correct 2 ms 5720 KB Output is correct
20 Correct 1 ms 5724 KB Output is correct
21 Correct 1 ms 5724 KB Output is correct
22 Correct 1 ms 5724 KB Output is correct
23 Correct 1 ms 5724 KB Output is correct
24 Correct 2 ms 5724 KB Output is correct
25 Correct 1 ms 5676 KB Output is correct
26 Correct 1 ms 5724 KB Output is correct
27 Correct 2 ms 5720 KB Output is correct
28 Correct 1 ms 5720 KB Output is correct
29 Correct 1 ms 5724 KB Output is correct
30 Correct 1 ms 5724 KB Output is correct
31 Correct 1 ms 5724 KB Output is correct
32 Correct 1 ms 5724 KB Output is correct
33 Correct 2 ms 5720 KB Output is correct
34 Correct 1 ms 5724 KB Output is correct
35 Correct 2 ms 5724 KB Output is correct
36 Correct 1 ms 5724 KB Output is correct
37 Correct 1 ms 5724 KB Output is correct
38 Correct 1 ms 5724 KB Output is correct
39 Correct 37 ms 13016 KB Output is correct
40 Correct 34 ms 12736 KB Output is correct
41 Correct 24 ms 11992 KB Output is correct
42 Correct 9 ms 6748 KB Output is correct
43 Correct 1 ms 5724 KB Output is correct
44 Correct 2 ms 5724 KB Output is correct
45 Correct 1 ms 5724 KB Output is correct
46 Correct 1 ms 5724 KB Output is correct
47 Correct 2 ms 5724 KB Output is correct
48 Correct 2 ms 5724 KB Output is correct
49 Correct 1 ms 5724 KB Output is correct
50 Correct 1 ms 5732 KB Output is correct
51 Correct 2 ms 5724 KB Output is correct
52 Correct 1 ms 5720 KB Output is correct
53 Correct 1 ms 5724 KB Output is correct
54 Correct 1 ms 5976 KB Output is correct
55 Correct 1 ms 5724 KB Output is correct
56 Correct 1 ms 5724 KB Output is correct
57 Correct 43 ms 10464 KB Output is correct
58 Correct 41 ms 10200 KB Output is correct
59 Correct 46 ms 10292 KB Output is correct
60 Correct 44 ms 10116 KB Output is correct
61 Correct 48 ms 10292 KB Output is correct
62 Correct 42 ms 10020 KB Output is correct
63 Correct 46 ms 10196 KB Output is correct
64 Correct 45 ms 10144 KB Output is correct
65 Correct 47 ms 10200 KB Output is correct
66 Correct 39 ms 10192 KB Output is correct
67 Correct 43 ms 10192 KB Output is correct
68 Correct 51 ms 10192 KB Output is correct
69 Correct 48 ms 10084 KB Output is correct
70 Correct 47 ms 10060 KB Output is correct
71 Correct 1 ms 5724 KB Output is correct
72 Correct 3 ms 5724 KB Output is correct
73 Correct 2 ms 5724 KB Output is correct
74 Correct 2 ms 5724 KB Output is correct
75 Correct 2 ms 5724 KB Output is correct
76 Correct 2 ms 5724 KB Output is correct
77 Correct 2 ms 5724 KB Output is correct
78 Correct 3 ms 5724 KB Output is correct
79 Correct 2 ms 5724 KB Output is correct
80 Correct 55 ms 10604 KB Output is correct
81 Correct 43 ms 10380 KB Output is correct
82 Correct 41 ms 10196 KB Output is correct
83 Correct 42 ms 10192 KB Output is correct
84 Correct 2 ms 5724 KB Output is correct
85 Correct 2 ms 5740 KB Output is correct
86 Correct 2 ms 5724 KB Output is correct
87 Correct 3 ms 5724 KB Output is correct
88 Correct 2 ms 5724 KB Output is correct
89 Correct 2 ms 5724 KB Output is correct
90 Correct 2 ms 5724 KB Output is correct
91 Correct 4 ms 5724 KB Output is correct
92 Correct 2 ms 5724 KB Output is correct
93 Correct 2 ms 5724 KB Output is correct
94 Correct 1 ms 5724 KB Output is correct
95 Correct 1 ms 5724 KB Output is correct
96 Correct 1 ms 5724 KB Output is correct
97 Correct 1 ms 5556 KB Output is correct
98 Correct 1 ms 5724 KB Output is correct
99 Correct 2 ms 5724 KB Output is correct
100 Correct 1 ms 5724 KB Output is correct
101 Correct 2 ms 5724 KB Output is correct
102 Correct 1 ms 5724 KB Output is correct
103 Correct 2 ms 5724 KB Output is correct
104 Correct 7 ms 6288 KB Output is correct
105 Correct 12 ms 7512 KB Output is correct
106 Correct 2 ms 5724 KB Output is correct
107 Correct 19 ms 8792 KB Output is correct
108 Correct 24 ms 10716 KB Output is correct
109 Correct 1 ms 5720 KB Output is correct
110 Correct 43 ms 10896 KB Output is correct
111 Correct 44 ms 11996 KB Output is correct
112 Correct 2 ms 5720 KB Output is correct
113 Correct 63 ms 17044 KB Output is correct
114 Runtime error 26 ms 16080 KB Execution killed with signal 6
115 Halted 0 ms 0 KB -