oj.uz

Submission #335969

# Submission time Handle Problem Language Result Execution time Memory
335969 2020-12-14T12:05:56 Z blue Dreaming (IOI13_dreaming) C++11
65 / 100
 180 ms 16236 KB 
#include "dreaming.h"
#include <iostream>
#include <vector>
#include <set>
#include <algorithm>
#include <queue>
using namespace std;

vector<int> edge[100001];
vector<int> weight[100001];
vector<int> edge_size(1e5 + 1, 0);
vector<int> maxdist(1e5 + 1, 0);
vector<int> visit(1e5 + 1, 0);
vector<int> roots;

struct distcomp
{
    int i;
};

bool operator < (distcomp A, distcomp B)
{
    if(maxdist[A.i] == maxdist[B.i]) return A.i < B.i;
    return maxdist[A.i] < maxdist[B.i];
}

int travelTime(int N, int M, int L, int A[], int B[], int T[])
{
    for(int i = 0; i < M; i++)
    {
        edge[A[i]].push_back(B[i]);
        weight[A[i]].push_back(T[i]);
        edge_size[A[i]]++;

        edge[B[i]].push_back(A[i]);
        weight[B[i]].push_back(T[i]);
        edge_size[B[i]]++;
    }


    set<distcomp> tbv;
    for(int i = 0; i < N; i++)
    {
        if(edge_size[i] == 1) tbv.insert(distcomp{i});
    }

    int u, v, w;
    int flag;
    while(!tbv.empty())
    {
        u = tbv.begin()->i;
        tbv.erase(tbv.begin());
        visit[u] = 1;

        for(int i = 0; i < edge[u].size(); i++)
        {
            v = edge[u][i];
            w = weight[u][i];

            if(visit[v]) continue;
            edge_size[v]--;
            maxdist[v] = max(maxdist[v], maxdist[u] + w);
            flag = 0;
            if(edge_size[v] == 1)
            {
                tbv.insert(distcomp{v});
            }
        }
    }

    for(int i = 0; i < N; i++) if(edge_size[i] == 0)
    {
        roots.push_back(i);
    }

    int res = 0;
    int max1, max2;
    for(int r: roots)
    {
        max1 = max2 = 0;
        for(int i = 0; i < edge[r].size(); i++)
        {
            v = edge[r][i];
            w = weight[r][i];

            if(maxdist[v] + w >= max1)
            {
                max2 = max1;
                max1 = maxdist[v] + w;
            }
            else if(maxdist[v] + w >= max2) max2 = maxdist[v] + w;
        }
        res = max(res, max1 + max2);
    }

    for(int i = 0; i < roots.size(); i++) roots[i] = -1 * maxdist[roots[i]];
    sort(roots.begin(), roots.end());

    if(roots.size() >= 2) res = max(res, L - roots[0] - roots[1]);
    if(roots.size() >= 3) res = max(res, 2*L - roots[1] - roots[2]);

    if(roots.size() >= 2) res = max(res, L - roots[0] - roots[1]);

int res0 = res;
if(roots.size() >= 3) res0 = max(res0, 2*L - roots[1] - roots[2]);

int res1 = res;
if(roots.size() >= 3) res1 = max(res1, 2*L - roots[0] - roots[2]);

res = min(res0, res1);

    return res;
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:55:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for(int i = 0; i < edge[u].size(); i++)
      |                        ~~^~~~~~~~~~~~~~~~
dreaming.cpp:81:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |         for(int i = 0; i < edge[r].size(); i++)
      |                        ~~^~~~~~~~~~~~~~~~
dreaming.cpp:96:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |     for(int i = 0; i < roots.size(); i++) roots[i] = -1 * maxdist[roots[i]];
      |                    ~~^~~~~~~~~~~~~~
dreaming.cpp:48:9: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
   48 |     int flag;
      |         ^~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 13036 KB Output is correct
2 Correct 87 ms 13020 KB Output is correct
3 Correct 51 ms 10604 KB Output is correct
4 Correct 13 ms 7148 KB Output is correct
5 Correct 11 ms 6892 KB Output is correct
6 Correct 19 ms 7660 KB Output is correct
7 Correct 5 ms 6252 KB Output is correct
8 Correct 39 ms 9196 KB Output is correct
9 Correct 51 ms 9964 KB Output is correct
10 Correct 5 ms 6252 KB Output is correct
11 Correct 84 ms 11372 KB Output is correct
12 Correct 101 ms 12140 KB Output is correct
13 Correct 6 ms 6252 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 13036 KB Output is correct
2 Correct 87 ms 13020 KB Output is correct
3 Correct 51 ms 10604 KB Output is correct
4 Correct 13 ms 7148 KB Output is correct
5 Correct 11 ms 6892 KB Output is correct
6 Correct 19 ms 7660 KB Output is correct
7 Correct 5 ms 6252 KB Output is correct
8 Correct 39 ms 9196 KB Output is correct
9 Correct 51 ms 9964 KB Output is correct
10 Correct 5 ms 6252 KB Output is correct
11 Correct 84 ms 11372 KB Output is correct
12 Correct 101 ms 12140 KB Output is correct
13 Correct 6 ms 6252 KB Output is correct
14 Correct 4 ms 6252 KB Output is correct
15 Correct 5 ms 6252 KB Output is correct
16 Correct 5 ms 6252 KB Output is correct
17 Correct 4 ms 6252 KB Output is correct
18 Correct 4 ms 6252 KB Output is correct
19 Correct 5 ms 6252 KB Output is correct
20 Correct 5 ms 6252 KB Output is correct
21 Correct 5 ms 6252 KB Output is correct
22 Correct 5 ms 6252 KB Output is correct
23 Correct 4 ms 6252 KB Output is correct
24 Correct 5 ms 6252 KB Output is correct
25 Correct 5 ms 6252 KB Output is correct
26 Correct 5 ms 6252 KB Output is correct
27 Correct 5 ms 6252 KB Output is correct
28 Correct 4 ms 6124 KB Output is correct
29 Correct 5 ms 6252 KB Output is correct
30 Correct 5 ms 6252 KB Output is correct
31 Correct 4 ms 6252 KB Output is correct
32 Correct 5 ms 6252 KB Output is correct
33 Correct 6 ms 6252 KB Output is correct
34 Correct 4 ms 6252 KB Output is correct
35 Correct 4 ms 6252 KB Output is correct
36 Correct 4 ms 6252 KB Output is correct
37 Correct 5 ms 6252 KB Output is correct
38 Correct 5 ms 6252 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 13036 KB Output is correct
2 Correct 87 ms 13020 KB Output is correct
3 Correct 51 ms 10604 KB Output is correct
4 Correct 13 ms 7148 KB Output is correct
5 Correct 11 ms 6892 KB Output is correct
6 Correct 19 ms 7660 KB Output is correct
7 Correct 5 ms 6252 KB Output is correct
8 Correct 39 ms 9196 KB Output is correct
9 Correct 51 ms 9964 KB Output is correct
10 Correct 5 ms 6252 KB Output is correct
11 Correct 84 ms 11372 KB Output is correct
12 Correct 101 ms 12140 KB Output is correct
13 Correct 6 ms 6252 KB Output is correct
14 Correct 4 ms 6252 KB Output is correct
15 Correct 5 ms 6252 KB Output is correct
16 Correct 5 ms 6252 KB Output is correct
17 Correct 4 ms 6252 KB Output is correct
18 Correct 4 ms 6252 KB Output is correct
19 Correct 5 ms 6252 KB Output is correct
20 Correct 5 ms 6252 KB Output is correct
21 Correct 5 ms 6252 KB Output is correct
22 Correct 5 ms 6252 KB Output is correct
23 Correct 4 ms 6252 KB Output is correct
24 Correct 5 ms 6252 KB Output is correct
25 Correct 5 ms 6252 KB Output is correct
26 Correct 5 ms 6252 KB Output is correct
27 Correct 5 ms 6252 KB Output is correct
28 Correct 4 ms 6124 KB Output is correct
29 Correct 5 ms 6252 KB Output is correct
30 Correct 5 ms 6252 KB Output is correct
31 Correct 4 ms 6252 KB Output is correct
32 Correct 5 ms 6252 KB Output is correct
33 Correct 6 ms 6252 KB Output is correct
34 Correct 4 ms 6252 KB Output is correct
35 Correct 4 ms 6252 KB Output is correct
36 Correct 4 ms 6252 KB Output is correct
37 Correct 5 ms 6252 KB Output is correct
38 Correct 5 ms 6252 KB Output is correct
39 Correct 94 ms 13036 KB Output is correct
40 Correct 87 ms 12908 KB Output is correct
41 Correct 52 ms 10676 KB Output is correct
42 Correct 13 ms 7148 KB Output is correct
43 Correct 5 ms 6252 KB Output is correct
44 Correct 5 ms 6252 KB Output is correct
45 Correct 5 ms 6252 KB Output is correct
46 Correct 4 ms 6252 KB Output is correct
47 Correct 4 ms 6252 KB Output is correct
48 Correct 5 ms 6252 KB Output is correct
49 Correct 5 ms 6252 KB Output is correct
50 Correct 5 ms 6252 KB Output is correct
51 Correct 4 ms 6252 KB Output is correct
52 Correct 5 ms 6252 KB Output is correct
53 Correct 4 ms 6252 KB Output is correct
54 Correct 5 ms 6252 KB Output is correct
55 Correct 5 ms 6252 KB Output is correct
56 Correct 6 ms 6252 KB Output is correct
57 Correct 178 ms 14956 KB Output is correct
58 Correct 176 ms 14956 KB Output is correct
59 Correct 172 ms 15212 KB Output is correct
60 Correct 180 ms 15212 KB Output is correct
61 Correct 175 ms 15980 KB Output is correct
62 Correct 173 ms 15928 KB Output is correct
63 Correct 174 ms 15980 KB Output is correct
64 Correct 170 ms 15980 KB Output is correct
65 Correct 173 ms 15980 KB Output is correct
66 Correct 175 ms 15852 KB Output is correct
67 Correct 168 ms 15340 KB Output is correct
68 Correct 167 ms 15212 KB Output is correct
69 Correct 171 ms 15212 KB Output is correct
70 Correct 174 ms 15340 KB Output is correct
71 Correct 5 ms 6124 KB Output is correct
72 Correct 7 ms 6508 KB Output is correct
73 Correct 7 ms 6508 KB Output is correct
74 Correct 7 ms 6508 KB Output is correct
75 Correct 7 ms 6508 KB Output is correct
76 Correct 7 ms 6508 KB Output is correct
77 Correct 7 ms 6508 KB Output is correct
78 Correct 7 ms 6508 KB Output is correct
79 Correct 7 ms 6508 KB Output is correct
80 Correct 174 ms 15304 KB Output is correct
81 Correct 168 ms 15212 KB Output is correct
82 Correct 173 ms 15980 KB Output is correct
83 Correct 177 ms 16236 KB Output is correct
84 Correct 6 ms 6508 KB Output is correct
85 Correct 6 ms 6380 KB Output is correct
86 Correct 6 ms 6508 KB Output is correct
87 Correct 6 ms 6380 KB Output is correct
88 Correct 6 ms 6508 KB Output is correct
89 Correct 6 ms 6508 KB Output is correct
90 Correct 6 ms 6380 KB Output is correct
91 Correct 7 ms 6508 KB Output is correct
92 Correct 8 ms 6636 KB Output is correct
93 Correct 7 ms 6508 KB Output is correct
94 Correct 5 ms 6252 KB Output is correct
95 Correct 5 ms 6252 KB Output is correct
96 Correct 4 ms 6252 KB Output is correct
97 Correct 4 ms 6252 KB Output is correct
98 Correct 5 ms 6252 KB Output is correct
99 Correct 5 ms 6252 KB Output is correct
100 Correct 5 ms 6252 KB Output is correct
101 Correct 5 ms 6252 KB Output is correct
102 Correct 5 ms 6252 KB Output is correct
103 Correct 5 ms 6252 KB Output is correct
104 Correct 12 ms 6892 KB Output is correct
105 Correct 18 ms 7660 KB Output is correct
106 Correct 5 ms 6252 KB Output is correct
107 Correct 41 ms 9196 KB Output is correct
108 Correct 54 ms 9964 KB Output is correct
109 Correct 5 ms 6252 KB Output is correct
110 Correct 87 ms 11628 KB Output is correct
111 Correct 100 ms 12140 KB Output is correct
112 Correct 6 ms 6252 KB Output is correct
113 Correct 147 ms 13676 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 13548 KB Output is correct
2 Correct 65 ms 13420 KB Output is correct
3 Correct 63 ms 13420 KB Output is correct
4 Correct 64 ms 13420 KB Output is correct
5 Correct 63 ms 13420 KB Output is correct
6 Correct 69 ms 13804 KB Output is correct
7 Correct 72 ms 13932 KB Output is correct
8 Correct 64 ms 13548 KB Output is correct
9 Correct 61 ms 13164 KB Output is correct
10 Correct 68 ms 13676 KB Output is correct
11 Correct 4 ms 6252 KB Output is correct
12 Correct 7 ms 6888 KB Output is correct
13 Correct 8 ms 6924 KB Output is correct
14 Correct 7 ms 6888 KB Output is correct
15 Correct 8 ms 6888 KB Output is correct
16 Correct 7 ms 6888 KB Output is correct
17 Correct 7 ms 6888 KB Output is correct
18 Correct 8 ms 6956 KB Output is correct
19 Correct 7 ms 6888 KB Output is correct
20 Correct 5 ms 6124 KB Output is correct
21 Correct 5 ms 6124 KB Output is correct
22 Correct 5 ms 6252 KB Output is correct
23 Correct 7 ms 6888 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 13036 KB Output is correct
2 Correct 87 ms 13020 KB Output is correct
3 Correct 51 ms 10604 KB Output is correct
4 Correct 13 ms 7148 KB Output is correct
5 Correct 11 ms 6892 KB Output is correct
6 Correct 19 ms 7660 KB Output is correct
7 Correct 5 ms 6252 KB Output is correct
8 Correct 39 ms 9196 KB Output is correct
9 Correct 51 ms 9964 KB Output is correct
10 Correct 5 ms 6252 KB Output is correct
11 Correct 84 ms 11372 KB Output is correct
12 Correct 101 ms 12140 KB Output is correct
13 Correct 6 ms 6252 KB Output is correct
14 Correct 5 ms 6252 KB Output is correct
15 Correct 6 ms 6380 KB Output is correct
16 Correct 7 ms 6508 KB Output is correct
17 Correct 5 ms 6252 KB Output is correct
18 Correct 6 ms 6380 KB Output is correct
19 Correct 7 ms 6508 KB Output is correct
20 Correct 5 ms 6252 KB Output is correct
21 Correct 6 ms 6380 KB Output is correct
22 Correct 7 ms 6508 KB Output is correct
23 Correct 4 ms 6252 KB Output is correct
24 Correct 5 ms 6252 KB Output is correct
25 Correct 5 ms 6252 KB Output is correct
26 Correct 4 ms 6252 KB Output is correct
27 Correct 4 ms 6252 KB Output is correct
28 Correct 4 ms 6252 KB Output is correct
29 Incorrect 4 ms 6252 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 13036 KB Output is correct
2 Correct 87 ms 13020 KB Output is correct
3 Correct 51 ms 10604 KB Output is correct
4 Correct 13 ms 7148 KB Output is correct
5 Correct 11 ms 6892 KB Output is correct
6 Correct 19 ms 7660 KB Output is correct
7 Correct 5 ms 6252 KB Output is correct
8 Correct 39 ms 9196 KB Output is correct
9 Correct 51 ms 9964 KB Output is correct
10 Correct 5 ms 6252 KB Output is correct
11 Correct 84 ms 11372 KB Output is correct
12 Correct 101 ms 12140 KB Output is correct
13 Correct 6 ms 6252 KB Output is correct
14 Correct 4 ms 6252 KB Output is correct
15 Correct 5 ms 6252 KB Output is correct
16 Correct 5 ms 6252 KB Output is correct
17 Correct 4 ms 6252 KB Output is correct
18 Correct 4 ms 6252 KB Output is correct
19 Correct 5 ms 6252 KB Output is correct
20 Correct 5 ms 6252 KB Output is correct
21 Correct 5 ms 6252 KB Output is correct
22 Correct 5 ms 6252 KB Output is correct
23 Correct 4 ms 6252 KB Output is correct
24 Correct 5 ms 6252 KB Output is correct
25 Correct 5 ms 6252 KB Output is correct
26 Correct 5 ms 6252 KB Output is correct
27 Correct 5 ms 6252 KB Output is correct
28 Correct 4 ms 6124 KB Output is correct
29 Correct 5 ms 6252 KB Output is correct
30 Correct 5 ms 6252 KB Output is correct
31 Correct 4 ms 6252 KB Output is correct
32 Correct 5 ms 6252 KB Output is correct
33 Correct 6 ms 6252 KB Output is correct
34 Correct 4 ms 6252 KB Output is correct
35 Correct 4 ms 6252 KB Output is correct
36 Correct 4 ms 6252 KB Output is correct
37 Correct 5 ms 6252 KB Output is correct
38 Correct 5 ms 6252 KB Output is correct
39 Correct 94 ms 13036 KB Output is correct
40 Correct 87 ms 12908 KB Output is correct
41 Correct 52 ms 10676 KB Output is correct
42 Correct 13 ms 7148 KB Output is correct
43 Correct 5 ms 6252 KB Output is correct
44 Correct 5 ms 6252 KB Output is correct
45 Correct 5 ms 6252 KB Output is correct
46 Correct 4 ms 6252 KB Output is correct
47 Correct 4 ms 6252 KB Output is correct
48 Correct 5 ms 6252 KB Output is correct
49 Correct 5 ms 6252 KB Output is correct
50 Correct 5 ms 6252 KB Output is correct
51 Correct 4 ms 6252 KB Output is correct
52 Correct 5 ms 6252 KB Output is correct
53 Correct 4 ms 6252 KB Output is correct
54 Correct 5 ms 6252 KB Output is correct
55 Correct 5 ms 6252 KB Output is correct
56 Correct 6 ms 6252 KB Output is correct
57 Correct 178 ms 14956 KB Output is correct
58 Correct 176 ms 14956 KB Output is correct
59 Correct 172 ms 15212 KB Output is correct
60 Correct 180 ms 15212 KB Output is correct
61 Correct 175 ms 15980 KB Output is correct
62 Correct 173 ms 15928 KB Output is correct
63 Correct 174 ms 15980 KB Output is correct
64 Correct 170 ms 15980 KB Output is correct
65 Correct 173 ms 15980 KB Output is correct
66 Correct 175 ms 15852 KB Output is correct
67 Correct 168 ms 15340 KB Output is correct
68 Correct 167 ms 15212 KB Output is correct
69 Correct 171 ms 15212 KB Output is correct
70 Correct 174 ms 15340 KB Output is correct
71 Correct 5 ms 6124 KB Output is correct
72 Correct 7 ms 6508 KB Output is correct
73 Correct 7 ms 6508 KB Output is correct
74 Correct 7 ms 6508 KB Output is correct
75 Correct 7 ms 6508 KB Output is correct
76 Correct 7 ms 6508 KB Output is correct
77 Correct 7 ms 6508 KB Output is correct
78 Correct 7 ms 6508 KB Output is correct
79 Correct 7 ms 6508 KB Output is correct
80 Correct 174 ms 15304 KB Output is correct
81 Correct 168 ms 15212 KB Output is correct
82 Correct 173 ms 15980 KB Output is correct
83 Correct 177 ms 16236 KB Output is correct
84 Correct 6 ms 6508 KB Output is correct
85 Correct 6 ms 6380 KB Output is correct
86 Correct 6 ms 6508 KB Output is correct
87 Correct 6 ms 6380 KB Output is correct
88 Correct 6 ms 6508 KB Output is correct
89 Correct 6 ms 6508 KB Output is correct
90 Correct 6 ms 6380 KB Output is correct
91 Correct 7 ms 6508 KB Output is correct
92 Correct 8 ms 6636 KB Output is correct
93 Correct 7 ms 6508 KB Output is correct
94 Correct 5 ms 6252 KB Output is correct
95 Correct 5 ms 6252 KB Output is correct
96 Correct 4 ms 6252 KB Output is correct
97 Correct 4 ms 6252 KB Output is correct
98 Correct 5 ms 6252 KB Output is correct
99 Correct 5 ms 6252 KB Output is correct
100 Correct 5 ms 6252 KB Output is correct
101 Correct 5 ms 6252 KB Output is correct
102 Correct 5 ms 6252 KB Output is correct
103 Correct 5 ms 6252 KB Output is correct
104 Correct 12 ms 6892 KB Output is correct
105 Correct 18 ms 7660 KB Output is correct
106 Correct 5 ms 6252 KB Output is correct
107 Correct 41 ms 9196 KB Output is correct
108 Correct 54 ms 9964 KB Output is correct
109 Correct 5 ms 6252 KB Output is correct
110 Correct 87 ms 11628 KB Output is correct
111 Correct 100 ms 12140 KB Output is correct
112 Correct 6 ms 6252 KB Output is correct
113 Correct 147 ms 13676 KB Output is correct
114 Correct 67 ms 13548 KB Output is correct
115 Correct 65 ms 13420 KB Output is correct
116 Correct 63 ms 13420 KB Output is correct
117 Correct 64 ms 13420 KB Output is correct
118 Correct 63 ms 13420 KB Output is correct
119 Correct 69 ms 13804 KB Output is correct
120 Correct 72 ms 13932 KB Output is correct
121 Correct 64 ms 13548 KB Output is correct
122 Correct 61 ms 13164 KB Output is correct
123 Correct 68 ms 13676 KB Output is correct
124 Correct 4 ms 6252 KB Output is correct
125 Correct 7 ms 6888 KB Output is correct
126 Correct 8 ms 6924 KB Output is correct
127 Correct 7 ms 6888 KB Output is correct
128 Correct 8 ms 6888 KB Output is correct
129 Correct 7 ms 6888 KB Output is correct
130 Correct 7 ms 6888 KB Output is correct
131 Correct 8 ms 6956 KB Output is correct
132 Correct 7 ms 6888 KB Output is correct
133 Correct 5 ms 6124 KB Output is correct
134 Correct 5 ms 6124 KB Output is correct
135 Correct 5 ms 6252 KB Output is correct
136 Correct 7 ms 6888 KB Output is correct
137 Correct 5 ms 6252 KB Output is correct
138 Correct 6 ms 6380 KB Output is correct
139 Correct 7 ms 6508 KB Output is correct
140 Correct 5 ms 6252 KB Output is correct
141 Correct 6 ms 6380 KB Output is correct
142 Correct 7 ms 6508 KB Output is correct
143 Correct 5 ms 6252 KB Output is correct
144 Correct 6 ms 6380 KB Output is correct
145 Correct 7 ms 6508 KB Output is correct
146 Correct 4 ms 6252 KB Output is correct
147 Correct 5 ms 6252 KB Output is correct
148 Correct 5 ms 6252 KB Output is correct
149 Correct 4 ms 6252 KB Output is correct
150 Correct 4 ms 6252 KB Output is correct
151 Correct 4 ms 6252 KB Output is correct
152 Incorrect 4 ms 6252 KB Output isn't correct
153 Halted 0 ms 0 KB -