oj.uz

Submission #225837

# Submission time Handle Problem Language Result Execution time Memory
225837 2020-04-21T19:56:42 Z DS007 Dreaming (IOI13_dreaming) C++14
47 / 100
 169 ms 27768 KB 
#include <bits/stdc++.h>
#include "dreaming.h"
using namespace std;

const int MN = 1e5 + 5;
vector<pair<int, int>> adj[MN];
bool explored[MN];
vector<int> dia, dist;
multimap<int, int> m[MN];
int dp[MN];

int dfs(int v, int p = -1, int last = 0) {
    int val = max(last, dp[v]);
    for (auto i : adj[v]) {
        if (i.first == p)
            continue;

        auto itr = m[v].rbegin();
        if (itr->second == i.first && m[v].size() == 1)
            val = min(val, dfs(i.first, v, last + i.second));
        else if (itr->second == i.first)
            val = min(val, dfs(i.first, v, max(last, (++itr)->first) + i.second));
        else
            val = min(val, dfs(i.first, v, max(last, itr->first) + i.second));
    }

    dp[v] = max(dp[v], last);
    return val;
}

void pre(int v) {
    explored[v] = true;
    for (auto i : adj[v]) {
        if (!explored[i.first])
            pre(i.first), m[v].insert({dp[i.first] + i.second, i.first});
    }
    dp[v] = m[v].empty() ? 0 : m[v].rbegin()->first;
}

pair<int, int> longest(int v, int p = -1) {
    pair<int, int> ans = {0, v};
    for (auto i : adj[v]) {
        if (i.first == p)
            continue;

        auto temp = longest(i.first, v);
        ans = max(ans, {temp.first + i.second, temp.second});
    }
    return ans;
}

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

    for (int i = 0; i < N; i++) {
        if (!explored[i]) {
            pre(i), dist.push_back(dfs(i));
            auto temp = longest(i);
            dia.push_back(longest(temp.second).first);
        }
    }

    sort(dist.begin(), dist.end());

    pair<int, int> pen[dist.size()];
    int lp = 0, rp = dist.size() - 1;
    bool check = true;

    for (int i = 0; i < dist.size(); i++) {
        if (check)
            pen[i] = {lp++, dist[i]};
        else
            pen[i] = {rp--, dist[i]};
        check = !check;
    }

    sort(pen, pen + dist.size());

    int ans = *max_element(dia.begin(), dia.end()), temp = 0;
    for (int i = 0; i < dist.size(); i++) {
        ans = max(ans, temp + pen[i].second);
        temp = max(temp, pen[i].second) + L;
    }

    return ans;
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:72:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < dist.size(); i++) {
                     ~~^~~~~~~~~~~~~
dreaming.cpp:83:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < dist.size(); i++) {
                     ~~^~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 23032 KB Output is correct
2 Correct 84 ms 22904 KB Output is correct
3 Correct 56 ms 18808 KB Output is correct
4 Correct 17 ms 9728 KB Output is correct
5 Correct 16 ms 8832 KB Output is correct
6 Correct 27 ms 10872 KB Output is correct
7 Correct 9 ms 7424 KB Output is correct
8 Correct 43 ms 13580 KB Output is correct
9 Correct 57 ms 16504 KB Output is correct
10 Correct 10 ms 7552 KB Output is correct
11 Correct 107 ms 18312 KB Output is correct
12 Correct 149 ms 20472 KB Output is correct
13 Correct 10 ms 7552 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 23032 KB Output is correct
2 Correct 84 ms 22904 KB Output is correct
3 Correct 56 ms 18808 KB Output is correct
4 Correct 17 ms 9728 KB Output is correct
5 Correct 16 ms 8832 KB Output is correct
6 Correct 27 ms 10872 KB Output is correct
7 Correct 9 ms 7424 KB Output is correct
8 Correct 43 ms 13580 KB Output is correct
9 Correct 57 ms 16504 KB Output is correct
10 Correct 10 ms 7552 KB Output is correct
11 Correct 107 ms 18312 KB Output is correct
12 Correct 149 ms 20472 KB Output is correct
13 Correct 10 ms 7552 KB Output is correct
14 Correct 8 ms 7424 KB Output is correct
15 Correct 8 ms 7424 KB Output is correct
16 Correct 8 ms 7424 KB Output is correct
17 Correct 8 ms 7424 KB Output is correct
18 Correct 8 ms 7424 KB Output is correct
19 Correct 9 ms 7424 KB Output is correct
20 Correct 9 ms 7424 KB Output is correct
21 Correct 8 ms 7424 KB Output is correct
22 Correct 10 ms 7424 KB Output is correct
23 Correct 8 ms 7424 KB Output is correct
24 Correct 9 ms 7424 KB Output is correct
25 Correct 8 ms 7424 KB Output is correct
26 Correct 8 ms 7424 KB Output is correct
27 Correct 8 ms 7424 KB Output is correct
28 Correct 8 ms 7424 KB Output is correct
29 Correct 8 ms 7424 KB Output is correct
30 Correct 8 ms 7424 KB Output is correct
31 Correct 8 ms 7424 KB Output is correct
32 Correct 9 ms 7424 KB Output is correct
33 Correct 9 ms 7424 KB Output is correct
34 Correct 9 ms 7424 KB Output is correct
35 Correct 8 ms 7424 KB Output is correct
36 Correct 9 ms 7424 KB Output is correct
37 Correct 9 ms 7424 KB Output is correct
38 Correct 8 ms 7424 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 23032 KB Output is correct
2 Correct 84 ms 22904 KB Output is correct
3 Correct 56 ms 18808 KB Output is correct
4 Correct 17 ms 9728 KB Output is correct
5 Correct 16 ms 8832 KB Output is correct
6 Correct 27 ms 10872 KB Output is correct
7 Correct 9 ms 7424 KB Output is correct
8 Correct 43 ms 13580 KB Output is correct
9 Correct 57 ms 16504 KB Output is correct
10 Correct 10 ms 7552 KB Output is correct
11 Correct 107 ms 18312 KB Output is correct
12 Correct 149 ms 20472 KB Output is correct
13 Correct 10 ms 7552 KB Output is correct
14 Correct 8 ms 7424 KB Output is correct
15 Correct 8 ms 7424 KB Output is correct
16 Correct 8 ms 7424 KB Output is correct
17 Correct 8 ms 7424 KB Output is correct
18 Correct 8 ms 7424 KB Output is correct
19 Correct 9 ms 7424 KB Output is correct
20 Correct 9 ms 7424 KB Output is correct
21 Correct 8 ms 7424 KB Output is correct
22 Correct 10 ms 7424 KB Output is correct
23 Correct 8 ms 7424 KB Output is correct
24 Correct 9 ms 7424 KB Output is correct
25 Correct 8 ms 7424 KB Output is correct
26 Correct 8 ms 7424 KB Output is correct
27 Correct 8 ms 7424 KB Output is correct
28 Correct 8 ms 7424 KB Output is correct
29 Correct 8 ms 7424 KB Output is correct
30 Correct 8 ms 7424 KB Output is correct
31 Correct 8 ms 7424 KB Output is correct
32 Correct 9 ms 7424 KB Output is correct
33 Correct 9 ms 7424 KB Output is correct
34 Correct 9 ms 7424 KB Output is correct
35 Correct 8 ms 7424 KB Output is correct
36 Correct 9 ms 7424 KB Output is correct
37 Correct 9 ms 7424 KB Output is correct
38 Correct 8 ms 7424 KB Output is correct
39 Correct 90 ms 23032 KB Output is correct
40 Correct 107 ms 23032 KB Output is correct
41 Correct 57 ms 18808 KB Output is correct
42 Correct 17 ms 9728 KB Output is correct
43 Correct 8 ms 7424 KB Output is correct
44 Correct 8 ms 7424 KB Output is correct
45 Correct 9 ms 7424 KB Output is correct
46 Correct 8 ms 7424 KB Output is correct
47 Correct 8 ms 7424 KB Output is correct
48 Correct 9 ms 7424 KB Output is correct
49 Correct 8 ms 7552 KB Output is correct
50 Correct 9 ms 7424 KB Output is correct
51 Correct 9 ms 7424 KB Output is correct
52 Correct 8 ms 7424 KB Output is correct
53 Correct 8 ms 7424 KB Output is correct
54 Correct 9 ms 7424 KB Output is correct
55 Correct 8 ms 7424 KB Output is correct
56 Correct 8 ms 7424 KB Output is correct
57 Correct 120 ms 19064 KB Output is correct
58 Correct 117 ms 19064 KB Output is correct
59 Correct 116 ms 19064 KB Output is correct
60 Correct 120 ms 18940 KB Output is correct
61 Correct 108 ms 19064 KB Output is correct
62 Correct 127 ms 19072 KB Output is correct
63 Correct 102 ms 18820 KB Output is correct
64 Correct 112 ms 18808 KB Output is correct
65 Correct 117 ms 19068 KB Output is correct
66 Correct 148 ms 19064 KB Output is correct
67 Correct 109 ms 19064 KB Output is correct
68 Correct 116 ms 19064 KB Output is correct
69 Correct 119 ms 19320 KB Output is correct
70 Correct 124 ms 19320 KB Output is correct
71 Correct 8 ms 7424 KB Output is correct
72 Correct 10 ms 7680 KB Output is correct
73 Correct 10 ms 7808 KB Output is correct
74 Correct 10 ms 7808 KB Output is correct
75 Correct 10 ms 7808 KB Output is correct
76 Correct 10 ms 7808 KB Output is correct
77 Correct 10 ms 7680 KB Output is correct
78 Correct 10 ms 7808 KB Output is correct
79 Correct 10 ms 7680 KB Output is correct
80 Correct 169 ms 19092 KB Output is correct
81 Correct 119 ms 18936 KB Output is correct
82 Correct 111 ms 19064 KB Output is correct
83 Correct 118 ms 19064 KB Output is correct
84 Correct 10 ms 7808 KB Output is correct
85 Correct 9 ms 7680 KB Output is correct
86 Correct 9 ms 7680 KB Output is correct
87 Correct 10 ms 7680 KB Output is correct
88 Correct 10 ms 7680 KB Output is correct
89 Correct 9 ms 7680 KB Output is correct
90 Correct 10 ms 7680 KB Output is correct
91 Correct 10 ms 7808 KB Output is correct
92 Correct 10 ms 7680 KB Output is correct
93 Correct 10 ms 7680 KB Output is correct
94 Correct 8 ms 7424 KB Output is correct
95 Correct 9 ms 7424 KB Output is correct
96 Correct 8 ms 7424 KB Output is correct
97 Correct 8 ms 7424 KB Output is correct
98 Correct 9 ms 7424 KB Output is correct
99 Correct 8 ms 7424 KB Output is correct
100 Correct 8 ms 7424 KB Output is correct
101 Correct 8 ms 7424 KB Output is correct
102 Correct 8 ms 7424 KB Output is correct
103 Correct 8 ms 7424 KB Output is correct
104 Correct 15 ms 8704 KB Output is correct
105 Correct 25 ms 10880 KB Output is correct
106 Correct 8 ms 7424 KB Output is correct
107 Correct 42 ms 13596 KB Output is correct
108 Correct 57 ms 16508 KB Output is correct
109 Correct 8 ms 7552 KB Output is correct
110 Correct 84 ms 18296 KB Output is correct
111 Correct 99 ms 20344 KB Output is correct
112 Correct 9 ms 7552 KB Output is correct
113 Correct 134 ms 27768 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 39 ms 13040 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 23032 KB Output is correct
2 Correct 84 ms 22904 KB Output is correct
3 Correct 56 ms 18808 KB Output is correct
4 Correct 17 ms 9728 KB Output is correct
5 Correct 16 ms 8832 KB Output is correct
6 Correct 27 ms 10872 KB Output is correct
7 Correct 9 ms 7424 KB Output is correct
8 Correct 43 ms 13580 KB Output is correct
9 Correct 57 ms 16504 KB Output is correct
10 Correct 10 ms 7552 KB Output is correct
11 Correct 107 ms 18312 KB Output is correct
12 Correct 149 ms 20472 KB Output is correct
13 Correct 10 ms 7552 KB Output is correct
14 Correct 8 ms 7424 KB Output is correct
15 Incorrect 9 ms 7552 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 23032 KB Output is correct
2 Correct 84 ms 22904 KB Output is correct
3 Correct 56 ms 18808 KB Output is correct
4 Correct 17 ms 9728 KB Output is correct
5 Correct 16 ms 8832 KB Output is correct
6 Correct 27 ms 10872 KB Output is correct
7 Correct 9 ms 7424 KB Output is correct
8 Correct 43 ms 13580 KB Output is correct
9 Correct 57 ms 16504 KB Output is correct
10 Correct 10 ms 7552 KB Output is correct
11 Correct 107 ms 18312 KB Output is correct
12 Correct 149 ms 20472 KB Output is correct
13 Correct 10 ms 7552 KB Output is correct
14 Correct 8 ms 7424 KB Output is correct
15 Correct 8 ms 7424 KB Output is correct
16 Correct 8 ms 7424 KB Output is correct
17 Correct 8 ms 7424 KB Output is correct
18 Correct 8 ms 7424 KB Output is correct
19 Correct 9 ms 7424 KB Output is correct
20 Correct 9 ms 7424 KB Output is correct
21 Correct 8 ms 7424 KB Output is correct
22 Correct 10 ms 7424 KB Output is correct
23 Correct 8 ms 7424 KB Output is correct
24 Correct 9 ms 7424 KB Output is correct
25 Correct 8 ms 7424 KB Output is correct
26 Correct 8 ms 7424 KB Output is correct
27 Correct 8 ms 7424 KB Output is correct
28 Correct 8 ms 7424 KB Output is correct
29 Correct 8 ms 7424 KB Output is correct
30 Correct 8 ms 7424 KB Output is correct
31 Correct 8 ms 7424 KB Output is correct
32 Correct 9 ms 7424 KB Output is correct
33 Correct 9 ms 7424 KB Output is correct
34 Correct 9 ms 7424 KB Output is correct
35 Correct 8 ms 7424 KB Output is correct
36 Correct 9 ms 7424 KB Output is correct
37 Correct 9 ms 7424 KB Output is correct
38 Correct 8 ms 7424 KB Output is correct
39 Correct 90 ms 23032 KB Output is correct
40 Correct 107 ms 23032 KB Output is correct
41 Correct 57 ms 18808 KB Output is correct
42 Correct 17 ms 9728 KB Output is correct
43 Correct 8 ms 7424 KB Output is correct
44 Correct 8 ms 7424 KB Output is correct
45 Correct 9 ms 7424 KB Output is correct
46 Correct 8 ms 7424 KB Output is correct
47 Correct 8 ms 7424 KB Output is correct
48 Correct 9 ms 7424 KB Output is correct
49 Correct 8 ms 7552 KB Output is correct
50 Correct 9 ms 7424 KB Output is correct
51 Correct 9 ms 7424 KB Output is correct
52 Correct 8 ms 7424 KB Output is correct
53 Correct 8 ms 7424 KB Output is correct
54 Correct 9 ms 7424 KB Output is correct
55 Correct 8 ms 7424 KB Output is correct
56 Correct 8 ms 7424 KB Output is correct
57 Correct 120 ms 19064 KB Output is correct
58 Correct 117 ms 19064 KB Output is correct
59 Correct 116 ms 19064 KB Output is correct
60 Correct 120 ms 18940 KB Output is correct
61 Correct 108 ms 19064 KB Output is correct
62 Correct 127 ms 19072 KB Output is correct
63 Correct 102 ms 18820 KB Output is correct
64 Correct 112 ms 18808 KB Output is correct
65 Correct 117 ms 19068 KB Output is correct
66 Correct 148 ms 19064 KB Output is correct
67 Correct 109 ms 19064 KB Output is correct
68 Correct 116 ms 19064 KB Output is correct
69 Correct 119 ms 19320 KB Output is correct
70 Correct 124 ms 19320 KB Output is correct
71 Correct 8 ms 7424 KB Output is correct
72 Correct 10 ms 7680 KB Output is correct
73 Correct 10 ms 7808 KB Output is correct
74 Correct 10 ms 7808 KB Output is correct
75 Correct 10 ms 7808 KB Output is correct
76 Correct 10 ms 7808 KB Output is correct
77 Correct 10 ms 7680 KB Output is correct
78 Correct 10 ms 7808 KB Output is correct
79 Correct 10 ms 7680 KB Output is correct
80 Correct 169 ms 19092 KB Output is correct
81 Correct 119 ms 18936 KB Output is correct
82 Correct 111 ms 19064 KB Output is correct
83 Correct 118 ms 19064 KB Output is correct
84 Correct 10 ms 7808 KB Output is correct
85 Correct 9 ms 7680 KB Output is correct
86 Correct 9 ms 7680 KB Output is correct
87 Correct 10 ms 7680 KB Output is correct
88 Correct 10 ms 7680 KB Output is correct
89 Correct 9 ms 7680 KB Output is correct
90 Correct 10 ms 7680 KB Output is correct
91 Correct 10 ms 7808 KB Output is correct
92 Correct 10 ms 7680 KB Output is correct
93 Correct 10 ms 7680 KB Output is correct
94 Correct 8 ms 7424 KB Output is correct
95 Correct 9 ms 7424 KB Output is correct
96 Correct 8 ms 7424 KB Output is correct
97 Correct 8 ms 7424 KB Output is correct
98 Correct 9 ms 7424 KB Output is correct
99 Correct 8 ms 7424 KB Output is correct
100 Correct 8 ms 7424 KB Output is correct
101 Correct 8 ms 7424 KB Output is correct
102 Correct 8 ms 7424 KB Output is correct
103 Correct 8 ms 7424 KB Output is correct
104 Correct 15 ms 8704 KB Output is correct
105 Correct 25 ms 10880 KB Output is correct
106 Correct 8 ms 7424 KB Output is correct
107 Correct 42 ms 13596 KB Output is correct
108 Correct 57 ms 16508 KB Output is correct
109 Correct 8 ms 7552 KB Output is correct
110 Correct 84 ms 18296 KB Output is correct
111 Correct 99 ms 20344 KB Output is correct
112 Correct 9 ms 7552 KB Output is correct
113 Correct 134 ms 27768 KB Output is correct
114 Incorrect 39 ms 13040 KB Output isn't correct
115 Halted 0 ms 0 KB -