oj.uz

Submission #335972

# Submission time Handle Problem Language Result Execution time Memory
335972 2020-12-14T12:33:28 Z blue Dreaming (IOI13_dreaming) C++11
65 / 100
 303 ms 19044 KB 
#include "dreaming.h"
#include <iostream>
#include <vector>
#include <set>
#include <algorithm>
#include <queue>
using namespace std;

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

struct distcomp
{
    long long 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});
    }

    long long 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);
    }

    long long res = 0;
    long long 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] = maxdist[roots[i]] * -1;
    sort(roots.begin(), roots.end());

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

    return int(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<long long 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<long long 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<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |     for(int i = 0; i < roots.size(); i++) roots[i] = maxdist[roots[i]] * -1;
      |                    ~~^~~~~~~~~~~~~~
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 92 ms 14188 KB Output is correct
2 Correct 88 ms 14188 KB Output is correct
3 Correct 53 ms 11756 KB Output is correct
4 Correct 14 ms 8448 KB Output is correct
5 Correct 12 ms 8172 KB Output is correct
6 Correct 21 ms 8812 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 40 ms 10348 KB Output is correct
9 Correct 54 ms 11280 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 99 ms 12524 KB Output is correct
12 Correct 107 ms 13420 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 14188 KB Output is correct
2 Correct 88 ms 14188 KB Output is correct
3 Correct 53 ms 11756 KB Output is correct
4 Correct 14 ms 8448 KB Output is correct
5 Correct 12 ms 8172 KB Output is correct
6 Correct 21 ms 8812 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 40 ms 10348 KB Output is correct
9 Correct 54 ms 11280 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 99 ms 12524 KB Output is correct
12 Correct 107 ms 13420 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct
14 Correct 5 ms 7404 KB Output is correct
15 Correct 5 ms 7404 KB Output is correct
16 Correct 5 ms 7404 KB Output is correct
17 Correct 5 ms 7404 KB Output is correct
18 Correct 6 ms 7404 KB Output is correct
19 Correct 6 ms 7404 KB Output is correct
20 Correct 5 ms 7404 KB Output is correct
21 Correct 5 ms 7404 KB Output is correct
22 Correct 5 ms 7404 KB Output is correct
23 Correct 5 ms 7404 KB Output is correct
24 Correct 5 ms 7404 KB Output is correct
25 Correct 5 ms 7404 KB Output is correct
26 Correct 5 ms 7424 KB Output is correct
27 Correct 5 ms 7404 KB Output is correct
28 Correct 5 ms 7404 KB Output is correct
29 Correct 5 ms 7404 KB Output is correct
30 Correct 5 ms 7404 KB Output is correct
31 Correct 5 ms 7404 KB Output is correct
32 Correct 5 ms 7404 KB Output is correct
33 Correct 5 ms 7404 KB Output is correct
34 Correct 5 ms 7424 KB Output is correct
35 Correct 5 ms 7404 KB Output is correct
36 Correct 5 ms 7404 KB Output is correct
37 Correct 5 ms 7404 KB Output is correct
38 Correct 5 ms 7404 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 14188 KB Output is correct
2 Correct 88 ms 14188 KB Output is correct
3 Correct 53 ms 11756 KB Output is correct
4 Correct 14 ms 8448 KB Output is correct
5 Correct 12 ms 8172 KB Output is correct
6 Correct 21 ms 8812 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 40 ms 10348 KB Output is correct
9 Correct 54 ms 11280 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 99 ms 12524 KB Output is correct
12 Correct 107 ms 13420 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct
14 Correct 5 ms 7404 KB Output is correct
15 Correct 5 ms 7404 KB Output is correct
16 Correct 5 ms 7404 KB Output is correct
17 Correct 5 ms 7404 KB Output is correct
18 Correct 6 ms 7404 KB Output is correct
19 Correct 6 ms 7404 KB Output is correct
20 Correct 5 ms 7404 KB Output is correct
21 Correct 5 ms 7404 KB Output is correct
22 Correct 5 ms 7404 KB Output is correct
23 Correct 5 ms 7404 KB Output is correct
24 Correct 5 ms 7404 KB Output is correct
25 Correct 5 ms 7404 KB Output is correct
26 Correct 5 ms 7424 KB Output is correct
27 Correct 5 ms 7404 KB Output is correct
28 Correct 5 ms 7404 KB Output is correct
29 Correct 5 ms 7404 KB Output is correct
30 Correct 5 ms 7404 KB Output is correct
31 Correct 5 ms 7404 KB Output is correct
32 Correct 5 ms 7404 KB Output is correct
33 Correct 5 ms 7404 KB Output is correct
34 Correct 5 ms 7424 KB Output is correct
35 Correct 5 ms 7404 KB Output is correct
36 Correct 5 ms 7404 KB Output is correct
37 Correct 5 ms 7404 KB Output is correct
38 Correct 5 ms 7404 KB Output is correct
39 Correct 102 ms 14188 KB Output is correct
40 Correct 94 ms 14200 KB Output is correct
41 Correct 57 ms 11884 KB Output is correct
42 Correct 15 ms 8428 KB Output is correct
43 Correct 5 ms 7404 KB Output is correct
44 Correct 6 ms 7404 KB Output is correct
45 Correct 5 ms 7404 KB Output is correct
46 Correct 5 ms 7404 KB Output is correct
47 Correct 5 ms 7404 KB Output is correct
48 Correct 5 ms 7404 KB Output is correct
49 Correct 5 ms 7404 KB Output is correct
50 Correct 5 ms 7404 KB Output is correct
51 Correct 5 ms 7404 KB Output is correct
52 Correct 6 ms 7404 KB Output is correct
53 Correct 7 ms 7420 KB Output is correct
54 Correct 5 ms 7404 KB Output is correct
55 Correct 5 ms 7404 KB Output is correct
56 Correct 7 ms 7404 KB Output is correct
57 Correct 202 ms 17644 KB Output is correct
58 Correct 186 ms 17644 KB Output is correct
59 Correct 194 ms 17696 KB Output is correct
60 Correct 182 ms 17772 KB Output is correct
61 Correct 193 ms 18592 KB Output is correct
62 Correct 193 ms 18668 KB Output is correct
63 Correct 194 ms 18284 KB Output is correct
64 Correct 187 ms 18284 KB Output is correct
65 Correct 201 ms 18424 KB Output is correct
66 Correct 197 ms 18268 KB Output is correct
67 Correct 198 ms 18028 KB Output is correct
68 Correct 193 ms 17968 KB Output is correct
69 Correct 194 ms 17956 KB Output is correct
70 Correct 195 ms 18156 KB Output is correct
71 Correct 5 ms 7404 KB Output is correct
72 Correct 8 ms 7660 KB Output is correct
73 Correct 7 ms 7660 KB Output is correct
74 Correct 8 ms 7660 KB Output is correct
75 Correct 8 ms 7660 KB Output is correct
76 Correct 8 ms 7660 KB Output is correct
77 Correct 8 ms 7788 KB Output is correct
78 Correct 8 ms 7788 KB Output is correct
79 Correct 8 ms 7660 KB Output is correct
80 Correct 262 ms 18376 KB Output is correct
81 Correct 303 ms 18424 KB Output is correct
82 Correct 191 ms 18924 KB Output is correct
83 Correct 202 ms 19044 KB Output is correct
84 Correct 8 ms 7712 KB Output is correct
85 Correct 9 ms 7660 KB Output is correct
86 Correct 7 ms 7660 KB Output is correct
87 Correct 115 ms 7700 KB Output is correct
88 Correct 8 ms 7660 KB Output is correct
89 Correct 115 ms 7660 KB Output is correct
90 Correct 8 ms 7660 KB Output is correct
91 Correct 8 ms 7788 KB Output is correct
92 Correct 114 ms 7752 KB Output is correct
93 Correct 153 ms 7796 KB Output is correct
94 Correct 6 ms 7404 KB Output is correct
95 Correct 5 ms 7404 KB Output is correct
96 Correct 5 ms 7404 KB Output is correct
97 Correct 6 ms 7404 KB Output is correct
98 Correct 5 ms 7404 KB Output is correct
99 Correct 59 ms 7404 KB Output is correct
100 Correct 6 ms 7404 KB Output is correct
101 Correct 7 ms 7404 KB Output is correct
102 Correct 6 ms 7404 KB Output is correct
103 Correct 6 ms 7404 KB Output is correct
104 Correct 14 ms 8300 KB Output is correct
105 Correct 20 ms 9196 KB Output is correct
106 Correct 6 ms 7404 KB Output is correct
107 Correct 47 ms 10860 KB Output is correct
108 Correct 62 ms 11756 KB Output is correct
109 Correct 38 ms 7468 KB Output is correct
110 Correct 99 ms 13548 KB Output is correct
111 Correct 112 ms 14348 KB Output is correct
112 Correct 6 ms 7404 KB Output is correct
113 Correct 155 ms 16108 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 14956 KB Output is correct
2 Correct 71 ms 15084 KB Output is correct
3 Correct 72 ms 14956 KB Output is correct
4 Correct 72 ms 14956 KB Output is correct
5 Correct 69 ms 14956 KB Output is correct
6 Correct 76 ms 15468 KB Output is correct
7 Correct 91 ms 15372 KB Output is correct
8 Correct 81 ms 14956 KB Output is correct
9 Correct 85 ms 14828 KB Output is correct
10 Correct 91 ms 15212 KB Output is correct
11 Correct 5 ms 7404 KB Output is correct
12 Correct 9 ms 8548 KB Output is correct
13 Correct 10 ms 8712 KB Output is correct
14 Correct 9 ms 8548 KB Output is correct
15 Correct 9 ms 8548 KB Output is correct
16 Correct 9 ms 8548 KB Output is correct
17 Correct 11 ms 8548 KB Output is correct
18 Correct 13 ms 8744 KB Output is correct
19 Correct 9 ms 8548 KB Output is correct
20 Correct 6 ms 7404 KB Output is correct
21 Correct 5 ms 7404 KB Output is correct
22 Correct 6 ms 7404 KB Output is correct
23 Correct 9 ms 8568 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 14188 KB Output is correct
2 Correct 88 ms 14188 KB Output is correct
3 Correct 53 ms 11756 KB Output is correct
4 Correct 14 ms 8448 KB Output is correct
5 Correct 12 ms 8172 KB Output is correct
6 Correct 21 ms 8812 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 40 ms 10348 KB Output is correct
9 Correct 54 ms 11280 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 99 ms 12524 KB Output is correct
12 Correct 107 ms 13420 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct
14 Correct 6 ms 7532 KB Output is correct
15 Correct 8 ms 7660 KB Output is correct
16 Correct 7 ms 7788 KB Output is correct
17 Correct 6 ms 7532 KB Output is correct
18 Correct 7 ms 7660 KB Output is correct
19 Correct 7 ms 7788 KB Output is correct
20 Correct 6 ms 7532 KB Output is correct
21 Correct 7 ms 7788 KB Output is correct
22 Correct 8 ms 7788 KB Output is correct
23 Correct 5 ms 7424 KB Output is correct
24 Correct 6 ms 7404 KB Output is correct
25 Correct 5 ms 7404 KB Output is correct
26 Correct 5 ms 7404 KB Output is correct
27 Correct 6 ms 7404 KB Output is correct
28 Correct 5 ms 7404 KB Output is correct
29 Incorrect 6 ms 7404 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 14188 KB Output is correct
2 Correct 88 ms 14188 KB Output is correct
3 Correct 53 ms 11756 KB Output is correct
4 Correct 14 ms 8448 KB Output is correct
5 Correct 12 ms 8172 KB Output is correct
6 Correct 21 ms 8812 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 40 ms 10348 KB Output is correct
9 Correct 54 ms 11280 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 99 ms 12524 KB Output is correct
12 Correct 107 ms 13420 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct
14 Correct 5 ms 7404 KB Output is correct
15 Correct 5 ms 7404 KB Output is correct
16 Correct 5 ms 7404 KB Output is correct
17 Correct 5 ms 7404 KB Output is correct
18 Correct 6 ms 7404 KB Output is correct
19 Correct 6 ms 7404 KB Output is correct
20 Correct 5 ms 7404 KB Output is correct
21 Correct 5 ms 7404 KB Output is correct
22 Correct 5 ms 7404 KB Output is correct
23 Correct 5 ms 7404 KB Output is correct
24 Correct 5 ms 7404 KB Output is correct
25 Correct 5 ms 7404 KB Output is correct
26 Correct 5 ms 7424 KB Output is correct
27 Correct 5 ms 7404 KB Output is correct
28 Correct 5 ms 7404 KB Output is correct
29 Correct 5 ms 7404 KB Output is correct
30 Correct 5 ms 7404 KB Output is correct
31 Correct 5 ms 7404 KB Output is correct
32 Correct 5 ms 7404 KB Output is correct
33 Correct 5 ms 7404 KB Output is correct
34 Correct 5 ms 7424 KB Output is correct
35 Correct 5 ms 7404 KB Output is correct
36 Correct 5 ms 7404 KB Output is correct
37 Correct 5 ms 7404 KB Output is correct
38 Correct 5 ms 7404 KB Output is correct
39 Correct 102 ms 14188 KB Output is correct
40 Correct 94 ms 14200 KB Output is correct
41 Correct 57 ms 11884 KB Output is correct
42 Correct 15 ms 8428 KB Output is correct
43 Correct 5 ms 7404 KB Output is correct
44 Correct 6 ms 7404 KB Output is correct
45 Correct 5 ms 7404 KB Output is correct
46 Correct 5 ms 7404 KB Output is correct
47 Correct 5 ms 7404 KB Output is correct
48 Correct 5 ms 7404 KB Output is correct
49 Correct 5 ms 7404 KB Output is correct
50 Correct 5 ms 7404 KB Output is correct
51 Correct 5 ms 7404 KB Output is correct
52 Correct 6 ms 7404 KB Output is correct
53 Correct 7 ms 7420 KB Output is correct
54 Correct 5 ms 7404 KB Output is correct
55 Correct 5 ms 7404 KB Output is correct
56 Correct 7 ms 7404 KB Output is correct
57 Correct 202 ms 17644 KB Output is correct
58 Correct 186 ms 17644 KB Output is correct
59 Correct 194 ms 17696 KB Output is correct
60 Correct 182 ms 17772 KB Output is correct
61 Correct 193 ms 18592 KB Output is correct
62 Correct 193 ms 18668 KB Output is correct
63 Correct 194 ms 18284 KB Output is correct
64 Correct 187 ms 18284 KB Output is correct
65 Correct 201 ms 18424 KB Output is correct
66 Correct 197 ms 18268 KB Output is correct
67 Correct 198 ms 18028 KB Output is correct
68 Correct 193 ms 17968 KB Output is correct
69 Correct 194 ms 17956 KB Output is correct
70 Correct 195 ms 18156 KB Output is correct
71 Correct 5 ms 7404 KB Output is correct
72 Correct 8 ms 7660 KB Output is correct
73 Correct 7 ms 7660 KB Output is correct
74 Correct 8 ms 7660 KB Output is correct
75 Correct 8 ms 7660 KB Output is correct
76 Correct 8 ms 7660 KB Output is correct
77 Correct 8 ms 7788 KB Output is correct
78 Correct 8 ms 7788 KB Output is correct
79 Correct 8 ms 7660 KB Output is correct
80 Correct 262 ms 18376 KB Output is correct
81 Correct 303 ms 18424 KB Output is correct
82 Correct 191 ms 18924 KB Output is correct
83 Correct 202 ms 19044 KB Output is correct
84 Correct 8 ms 7712 KB Output is correct
85 Correct 9 ms 7660 KB Output is correct
86 Correct 7 ms 7660 KB Output is correct
87 Correct 115 ms 7700 KB Output is correct
88 Correct 8 ms 7660 KB Output is correct
89 Correct 115 ms 7660 KB Output is correct
90 Correct 8 ms 7660 KB Output is correct
91 Correct 8 ms 7788 KB Output is correct
92 Correct 114 ms 7752 KB Output is correct
93 Correct 153 ms 7796 KB Output is correct
94 Correct 6 ms 7404 KB Output is correct
95 Correct 5 ms 7404 KB Output is correct
96 Correct 5 ms 7404 KB Output is correct
97 Correct 6 ms 7404 KB Output is correct
98 Correct 5 ms 7404 KB Output is correct
99 Correct 59 ms 7404 KB Output is correct
100 Correct 6 ms 7404 KB Output is correct
101 Correct 7 ms 7404 KB Output is correct
102 Correct 6 ms 7404 KB Output is correct
103 Correct 6 ms 7404 KB Output is correct
104 Correct 14 ms 8300 KB Output is correct
105 Correct 20 ms 9196 KB Output is correct
106 Correct 6 ms 7404 KB Output is correct
107 Correct 47 ms 10860 KB Output is correct
108 Correct 62 ms 11756 KB Output is correct
109 Correct 38 ms 7468 KB Output is correct
110 Correct 99 ms 13548 KB Output is correct
111 Correct 112 ms 14348 KB Output is correct
112 Correct 6 ms 7404 KB Output is correct
113 Correct 155 ms 16108 KB Output is correct
114 Correct 73 ms 14956 KB Output is correct
115 Correct 71 ms 15084 KB Output is correct
116 Correct 72 ms 14956 KB Output is correct
117 Correct 72 ms 14956 KB Output is correct
118 Correct 69 ms 14956 KB Output is correct
119 Correct 76 ms 15468 KB Output is correct
120 Correct 91 ms 15372 KB Output is correct
121 Correct 81 ms 14956 KB Output is correct
122 Correct 85 ms 14828 KB Output is correct
123 Correct 91 ms 15212 KB Output is correct
124 Correct 5 ms 7404 KB Output is correct
125 Correct 9 ms 8548 KB Output is correct
126 Correct 10 ms 8712 KB Output is correct
127 Correct 9 ms 8548 KB Output is correct
128 Correct 9 ms 8548 KB Output is correct
129 Correct 9 ms 8548 KB Output is correct
130 Correct 11 ms 8548 KB Output is correct
131 Correct 13 ms 8744 KB Output is correct
132 Correct 9 ms 8548 KB Output is correct
133 Correct 6 ms 7404 KB Output is correct
134 Correct 5 ms 7404 KB Output is correct
135 Correct 6 ms 7404 KB Output is correct
136 Correct 9 ms 8568 KB Output is correct
137 Correct 6 ms 7532 KB Output is correct
138 Correct 8 ms 7660 KB Output is correct
139 Correct 7 ms 7788 KB Output is correct
140 Correct 6 ms 7532 KB Output is correct
141 Correct 7 ms 7660 KB Output is correct
142 Correct 7 ms 7788 KB Output is correct
143 Correct 6 ms 7532 KB Output is correct
144 Correct 7 ms 7788 KB Output is correct
145 Correct 8 ms 7788 KB Output is correct
146 Correct 5 ms 7424 KB Output is correct
147 Correct 6 ms 7404 KB Output is correct
148 Correct 5 ms 7404 KB Output is correct
149 Correct 5 ms 7404 KB Output is correct
150 Correct 6 ms 7404 KB Output is correct
151 Correct 5 ms 7404 KB Output is correct
152 Incorrect 6 ms 7404 KB Output isn't correct
153 Halted 0 ms 0 KB -