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Submission #198098

# Submission time Handle Problem Language Result Execution time Memory
198098 2020-01-24T17:04:46 Z johutha Dreaming (IOI13_dreaming) C++14
59 / 100
 1000 ms 16948 KB 
#include "dreaming.h"
#include <vector>
#include <iostream>
#include <algorithm>
#include "assert.h"

#define int int64_t

using namespace std;

struct graph
{
    int n;
    vector<vector<pair<int,int>>> adjlist;
    vector<int> comp;
    vector<int> dist;
    int nrcomp = 0;

    void compdfs(int curr, int par, int c)
    {
        comp[curr] = c;

        for (auto p : adjlist[curr])
        {
            int next = p.first;
            if (next == par) continue;
            compdfs(next, curr, c);
        }
    }

    void distdfs(int curr, int par, int d)
    {
        dist[curr] = max(dist[curr], d);

        for (auto p : adjlist[curr])
        {
            int next = p.first;
            int w = p.second;
            if (next == par) continue;
            distdfs(next, curr, d + w);
        }
    }

    void print()
    {
        for (int i = 0; i < n; i++)
        {
            if (i < 10) cout << " ";
            cout << i << " ";
        }
        cout << "\n";
        for (auto i : dist)
        {
            if (i < 10) cout << " ";
            cout << i << " ";
        }
        cout << "\n";
    }

    int calcdiameter(int st)
    {
        dist.assign(n, -1);
        distdfs(st, -1, 0);
        int mmax = -1;
        int mver = -1;

        for (int i = 0; i < n; i++)
        {
			if (dist[i] == -1) continue;
            if (mmax < dist[i])
            {
                mmax = dist[i];
                mver = i;
            }
        }
        dist.assign(n, -1);

        distdfs(mver, -1, 0);
        return *max_element(dist.begin(), dist.end());
    }

    int calc(int l)
    {
        dist.resize(n, -1);
        comp.resize(n, -1);

        for (int i = 0; i < n; i++)
        {
            if (comp[i] == -1)
            {
                compdfs(i, -1, nrcomp);
                nrcomp++;
            }
        }

        if (nrcomp == 1)
        {
			return calcdiameter(0);
        }

        for (int i = 0; i < n; i++)
        {
            if (dist[i] < 0)
            {
                distdfs(i, -1, 0);
            }
        }

        vector<int> md(nrcomp, -1);
        vector<int> mv(nrcomp, -1);

        for (int i = 0; i < n; i++)
        {
            if (dist[i] > md[comp[i]])
            {
                md[comp[i]] = dist[i];
                mv[comp[i]] = i;
            }
        }
        
        for (auto i : mv) distdfs(i, -1, 0);

        md.assign(nrcomp, -1);
        mv.assign(nrcomp, -1);

        for (int i = 0; i < n; i++)
        {
            if (dist[i] > md[comp[i]])
            {
                md[comp[i]] = dist[i];
                mv[comp[i]] = i;
            }
        }

        for (auto i : mv) distdfs(i, -1, 0);

        md.assign(nrcomp, 1e12);

        for (int i = 0; i < n; i++)
        {
            if (dist[i] < md[comp[i]])
            {
                md[comp[i]] = dist[i];
            }
        }

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

        int mmax = md[nrcomp - 1] + md[nrcomp - 2] + l;
        if (nrcomp != 2) mmax = max(md[nrcomp - 2] + md[nrcomp - 3] + 2*l, mmax);

		for (auto i : mv)
		{
			mmax = max(mmax, calcdiameter(i));
		}

        return mmax;
    }
};

signed travelTime(signed N, signed M, signed L, signed A[], signed B[], signed T[])
{
    graph g;
    g.n = N;

    g.adjlist.resize(N);

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

    return g.calc(L);
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 13432 KB Output is correct
2 Correct 194 ms 14712 KB Output is correct
3 Correct 65 ms 9976 KB Output is correct
4 Correct 31 ms 2424 KB Output is correct
5 Correct 14 ms 1788 KB Output is correct
6 Correct 26 ms 3712 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 59 ms 6072 KB Output is correct
9 Correct 87 ms 8024 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 114 ms 10872 KB Output is correct
12 Correct 166 ms 12980 KB Output is correct
13 Correct 1 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 13432 KB Output is correct
2 Correct 194 ms 14712 KB Output is correct
3 Correct 65 ms 9976 KB Output is correct
4 Correct 31 ms 2424 KB Output is correct
5 Correct 14 ms 1788 KB Output is correct
6 Correct 26 ms 3712 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 59 ms 6072 KB Output is correct
9 Correct 87 ms 8024 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 114 ms 10872 KB Output is correct
12 Correct 166 ms 12980 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 1 ms 424 KB Output is correct
20 Correct 3 ms 376 KB Output is correct
21 Correct 2 ms 368 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 7 ms 376 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 1 ms 376 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 0 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 4 ms 376 KB Output is correct
34 Correct 1 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 7 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 13432 KB Output is correct
2 Correct 194 ms 14712 KB Output is correct
3 Correct 65 ms 9976 KB Output is correct
4 Correct 31 ms 2424 KB Output is correct
5 Correct 14 ms 1788 KB Output is correct
6 Correct 26 ms 3712 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 59 ms 6072 KB Output is correct
9 Correct 87 ms 8024 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 114 ms 10872 KB Output is correct
12 Correct 166 ms 12980 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 1 ms 424 KB Output is correct
20 Correct 3 ms 376 KB Output is correct
21 Correct 2 ms 368 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 7 ms 376 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 1 ms 376 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 0 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 4 ms 376 KB Output is correct
34 Correct 1 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 7 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 160 ms 14712 KB Output is correct
40 Correct 113 ms 14692 KB Output is correct
41 Correct 64 ms 10024 KB Output is correct
42 Correct 9 ms 2528 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 5 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 5 ms 376 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 5 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 2 ms 248 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 184 ms 12920 KB Output is correct
58 Correct 177 ms 12792 KB Output is correct
59 Correct 184 ms 12408 KB Output is correct
60 Correct 189 ms 12528 KB Output is correct
61 Correct 158 ms 12408 KB Output is correct
62 Correct 154 ms 12432 KB Output is correct
63 Correct 144 ms 12024 KB Output is correct
64 Correct 174 ms 11896 KB Output is correct
65 Correct 261 ms 12252 KB Output is correct
66 Correct 151 ms 12152 KB Output is correct
67 Correct 187 ms 12440 KB Output is correct
68 Correct 178 ms 12540 KB Output is correct
69 Correct 173 ms 12792 KB Output is correct
70 Correct 178 ms 12700 KB Output is correct
71 Correct 2 ms 256 KB Output is correct
72 Correct 5 ms 732 KB Output is correct
73 Correct 4 ms 760 KB Output is correct
74 Correct 7 ms 760 KB Output is correct
75 Correct 3 ms 760 KB Output is correct
76 Correct 5 ms 760 KB Output is correct
77 Correct 4 ms 760 KB Output is correct
78 Correct 5 ms 672 KB Output is correct
79 Correct 5 ms 640 KB Output is correct
80 Correct 243 ms 12424 KB Output is correct
81 Correct 176 ms 12408 KB Output is correct
82 Correct 148 ms 12424 KB Output is correct
83 Correct 234 ms 12460 KB Output is correct
84 Correct 5 ms 504 KB Output is correct
85 Correct 4 ms 576 KB Output is correct
86 Correct 4 ms 504 KB Output is correct
87 Correct 6 ms 632 KB Output is correct
88 Correct 4 ms 632 KB Output is correct
89 Correct 4 ms 632 KB Output is correct
90 Correct 4 ms 632 KB Output is correct
91 Correct 5 ms 632 KB Output is correct
92 Correct 4 ms 632 KB Output is correct
93 Correct 11 ms 676 KB Output is correct
94 Correct 4 ms 380 KB Output is correct
95 Correct 2 ms 376 KB Output is correct
96 Correct 2 ms 376 KB Output is correct
97 Correct 2 ms 376 KB Output is correct
98 Correct 0 ms 376 KB Output is correct
99 Correct 4 ms 376 KB Output is correct
100 Correct 3 ms 376 KB Output is correct
101 Correct 2 ms 376 KB Output is correct
102 Correct 3 ms 376 KB Output is correct
103 Correct 2 ms 380 KB Output is correct
104 Correct 12 ms 1784 KB Output is correct
105 Correct 24 ms 3704 KB Output is correct
106 Correct 2 ms 376 KB Output is correct
107 Correct 63 ms 6136 KB Output is correct
108 Correct 65 ms 8028 KB Output is correct
109 Correct 3 ms 504 KB Output is correct
110 Correct 144 ms 10900 KB Output is correct
111 Correct 153 ms 12792 KB Output is correct
112 Correct 3 ms 504 KB Output is correct
113 Correct 286 ms 16948 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1062 ms 7220 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 13432 KB Output is correct
2 Correct 194 ms 14712 KB Output is correct
3 Correct 65 ms 9976 KB Output is correct
4 Correct 31 ms 2424 KB Output is correct
5 Correct 14 ms 1788 KB Output is correct
6 Correct 26 ms 3712 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 59 ms 6072 KB Output is correct
9 Correct 87 ms 8024 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 114 ms 10872 KB Output is correct
12 Correct 166 ms 12980 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 4 ms 504 KB Output is correct
15 Correct 5 ms 504 KB Output is correct
16 Correct 8 ms 632 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 8 ms 504 KB Output is correct
19 Correct 9 ms 632 KB Output is correct
20 Correct 3 ms 376 KB Output is correct
21 Correct 5 ms 504 KB Output is correct
22 Correct 13 ms 632 KB Output is correct
23 Correct 7 ms 376 KB Output is correct
24 Correct 6 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 248 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 3 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 9 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 3 ms 376 KB Output is correct
39 Correct 6 ms 404 KB Output is correct
40 Correct 2 ms 380 KB Output is correct
41 Correct 2 ms 256 KB Output is correct
42 Correct 5 ms 888 KB Output is correct
43 Correct 4 ms 744 KB Output is correct
44 Correct 15 ms 632 KB Output is correct
45 Correct 23 ms 552 KB Output is correct
46 Correct 4 ms 632 KB Output is correct
47 Correct 5 ms 632 KB Output is correct
48 Correct 20 ms 760 KB Output is correct
49 Correct 21 ms 560 KB Output is correct
50 Correct 5 ms 632 KB Output is correct
51 Correct 3 ms 760 KB Output is correct
52 Correct 25 ms 504 KB Output is correct
53 Correct 13 ms 760 KB Output is correct
54 Correct 6 ms 632 KB Output is correct
55 Correct 4 ms 632 KB Output is correct
56 Correct 13 ms 632 KB Output is correct
57 Correct 13 ms 632 KB Output is correct
58 Correct 20 ms 632 KB Output is correct
59 Correct 20 ms 508 KB Output is correct
60 Correct 4 ms 680 KB Output is correct
61 Correct 4 ms 632 KB Output is correct
62 Correct 6 ms 632 KB Output is correct
63 Correct 7 ms 632 KB Output is correct
64 Correct 5 ms 632 KB Output is correct
65 Correct 5 ms 760 KB Output is correct
66 Correct 19 ms 504 KB Output is correct
67 Correct 20 ms 504 KB Output is correct
68 Correct 26 ms 504 KB Output is correct
69 Correct 33 ms 504 KB Output is correct
70 Correct 8 ms 632 KB Output is correct
71 Correct 7 ms 632 KB Output is correct
72 Correct 19 ms 632 KB Output is correct
73 Correct 27 ms 504 KB Output is correct
74 Correct 13 ms 632 KB Output is correct
75 Correct 4 ms 636 KB Output is correct
76 Correct 14 ms 760 KB Output is correct
77 Correct 15 ms 760 KB Output is correct
78 Correct 18 ms 420 KB Output is correct
79 Correct 19 ms 504 KB Output is correct
80 Correct 3 ms 632 KB Output is correct
81 Correct 4 ms 504 KB Output is correct
82 Correct 4 ms 632 KB Output is correct
83 Correct 4 ms 632 KB Output is correct
84 Correct 4 ms 632 KB Output is correct
85 Correct 4 ms 632 KB Output is correct
86 Correct 1 ms 648 KB Output is correct
87 Correct 4 ms 504 KB Output is correct
88 Correct 4 ms 632 KB Output is correct
89 Correct 4 ms 552 KB Output is correct
90 Correct 2 ms 376 KB Output is correct
91 Correct 2 ms 376 KB Output is correct
92 Correct 2 ms 376 KB Output is correct
93 Correct 2 ms 376 KB Output is correct
94 Correct 2 ms 376 KB Output is correct
95 Correct 2 ms 376 KB Output is correct
96 Correct 3 ms 376 KB Output is correct
97 Correct 2 ms 376 KB Output is correct
98 Correct 2 ms 376 KB Output is correct
99 Correct 2 ms 376 KB Output is correct
100 Correct 5 ms 376 KB Output is correct
101 Correct 2 ms 376 KB Output is correct
102 Correct 1 ms 504 KB Output is correct

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 13432 KB Output is correct
2 Correct 194 ms 14712 KB Output is correct
3 Correct 65 ms 9976 KB Output is correct
4 Correct 31 ms 2424 KB Output is correct
5 Correct 14 ms 1788 KB Output is correct
6 Correct 26 ms 3712 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 59 ms 6072 KB Output is correct
9 Correct 87 ms 8024 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 114 ms 10872 KB Output is correct
12 Correct 166 ms 12980 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 1 ms 424 KB Output is correct
20 Correct 3 ms 376 KB Output is correct
21 Correct 2 ms 368 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 7 ms 376 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 1 ms 376 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 0 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 4 ms 376 KB Output is correct
34 Correct 1 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 7 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 160 ms 14712 KB Output is correct
40 Correct 113 ms 14692 KB Output is correct
41 Correct 64 ms 10024 KB Output is correct
42 Correct 9 ms 2528 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 5 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 5 ms 376 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 5 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 2 ms 248 KB Output is correct
55 Correct 2 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 184 ms 12920 KB Output is correct
58 Correct 177 ms 12792 KB Output is correct
59 Correct 184 ms 12408 KB Output is correct
60 Correct 189 ms 12528 KB Output is correct
61 Correct 158 ms 12408 KB Output is correct
62 Correct 154 ms 12432 KB Output is correct
63 Correct 144 ms 12024 KB Output is correct
64 Correct 174 ms 11896 KB Output is correct
65 Correct 261 ms 12252 KB Output is correct
66 Correct 151 ms 12152 KB Output is correct
67 Correct 187 ms 12440 KB Output is correct
68 Correct 178 ms 12540 KB Output is correct
69 Correct 173 ms 12792 KB Output is correct
70 Correct 178 ms 12700 KB Output is correct
71 Correct 2 ms 256 KB Output is correct
72 Correct 5 ms 732 KB Output is correct
73 Correct 4 ms 760 KB Output is correct
74 Correct 7 ms 760 KB Output is correct
75 Correct 3 ms 760 KB Output is correct
76 Correct 5 ms 760 KB Output is correct
77 Correct 4 ms 760 KB Output is correct
78 Correct 5 ms 672 KB Output is correct
79 Correct 5 ms 640 KB Output is correct
80 Correct 243 ms 12424 KB Output is correct
81 Correct 176 ms 12408 KB Output is correct
82 Correct 148 ms 12424 KB Output is correct
83 Correct 234 ms 12460 KB Output is correct
84 Correct 5 ms 504 KB Output is correct
85 Correct 4 ms 576 KB Output is correct
86 Correct 4 ms 504 KB Output is correct
87 Correct 6 ms 632 KB Output is correct
88 Correct 4 ms 632 KB Output is correct
89 Correct 4 ms 632 KB Output is correct
90 Correct 4 ms 632 KB Output is correct
91 Correct 5 ms 632 KB Output is correct
92 Correct 4 ms 632 KB Output is correct
93 Correct 11 ms 676 KB Output is correct
94 Correct 4 ms 380 KB Output is correct
95 Correct 2 ms 376 KB Output is correct
96 Correct 2 ms 376 KB Output is correct
97 Correct 2 ms 376 KB Output is correct
98 Correct 0 ms 376 KB Output is correct
99 Correct 4 ms 376 KB Output is correct
100 Correct 3 ms 376 KB Output is correct
101 Correct 2 ms 376 KB Output is correct
102 Correct 3 ms 376 KB Output is correct
103 Correct 2 ms 380 KB Output is correct
104 Correct 12 ms 1784 KB Output is correct
105 Correct 24 ms 3704 KB Output is correct
106 Correct 2 ms 376 KB Output is correct
107 Correct 63 ms 6136 KB Output is correct
108 Correct 65 ms 8028 KB Output is correct
109 Correct 3 ms 504 KB Output is correct
110 Correct 144 ms 10900 KB Output is correct
111 Correct 153 ms 12792 KB Output is correct
112 Correct 3 ms 504 KB Output is correct
113 Correct 286 ms 16948 KB Output is correct
114 Execution timed out 1062 ms 7220 KB Time limit exceeded
115 Halted 0 ms 0 KB -