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Submission #1030212

# Submission time Handle Problem Language Result Execution time Memory
1030212 2024-07-21T23:22:27 Z Agreb Longest Trip (IOI23_longesttrip) C++17
60 / 100
 867 ms 692 KB 
#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;

vector <int> longest_trip(int N, int D){
    vector <vector<int>> gr(N, vector<int>(N, 0));
    vector <int> path;
    for (int i = 0; i < N; i++){
        for (int j = 0; j < i; j++){
            vector <int> a{i}, b{j};
            gr[i][j] = gr[j][i] = are_connected(a, b);
            if (gr[i][j]){
                path = {i, j};
            }
        }
    }
    assert(!path.empty());
    
    vector <int> on_path(N);
    for (int u : path) on_path[u] = 1;

    while (path.size() < N){
        int P = path.size();
        int st = path[0], fin = path[P-1];

        int done = 0;
        for (int v = 0; v < N; v++){
            if (!on_path[v]){
                if (gr[st][v]){
                    reverse(path.begin(), path.end());
                    path.push_back(v);
                    on_path[v] = 1;
                    done = 1;
                    break;
                }
                if (gr[fin][v]){
                    path.push_back(v);
                    on_path[v] = 1;
                    done = 1;
                    break;
                }
            }
        }
        if (done) continue;

        assert(gr[st][fin] == 1);
        for (int v = 0; v < N; v++){
            if (!on_path[v]){
                for (int i = 0; i < P; i++){
                    if (gr[path[i]][v]){
                        vector <int> npath;
                        for (int j = 0; j < P; j++) 
                            npath.push_back(path[(j+i+1)%P]);
                        npath.push_back(v);
                        path = npath;
                        on_path[v] = 1;
                        done = 1;
                        break;
                    }
                }
                if (done) break;
            }
        }
        if (done) continue;

        if (P >= N - P) return path;
        else{
            vector <int> npath;
            for (int v = 0; v < N; v++){
                if (!on_path[v]) npath.push_back(v);
            }
            return npath;
        }
    }
    return path;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:22:24: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   22 |     while (path.size() < N){
      |            ~~~~~~~~~~~~^~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 206 ms 600 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 27 ms 344 KB Output is correct
3 Correct 149 ms 344 KB Output is correct
4 Correct 417 ms 480 KB Output is correct
5 Correct 730 ms 600 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 344 KB Output is correct
2 Correct 26 ms 344 KB Output is correct
3 Correct 170 ms 344 KB Output is correct
4 Correct 388 ms 500 KB Output is correct
5 Correct 854 ms 600 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 20 ms 340 KB Output is correct
8 Correct 144 ms 344 KB Output is correct
9 Correct 299 ms 344 KB Output is correct
10 Correct 833 ms 600 KB Output is correct
11 Correct 823 ms 600 KB Output is correct
12 Correct 867 ms 600 KB Output is correct
13 Correct 787 ms 600 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 21 ms 344 KB Output is correct
3 Correct 142 ms 344 KB Output is correct
4 Correct 373 ms 344 KB Output is correct
5 Correct 718 ms 600 KB Output is correct
6 Correct 7 ms 344 KB Output is correct
7 Correct 21 ms 344 KB Output is correct
8 Correct 135 ms 344 KB Output is correct
9 Correct 301 ms 344 KB Output is correct
10 Correct 834 ms 600 KB Output is correct
11 Correct 783 ms 600 KB Output is correct
12 Correct 754 ms 600 KB Output is correct
13 Correct 765 ms 600 KB Output is correct
14 Correct 7 ms 344 KB Output is correct
15 Correct 11 ms 344 KB Output is correct
16 Correct 40 ms 344 KB Output is correct
17 Correct 83 ms 344 KB Output is correct
18 Correct 133 ms 344 KB Output is correct
19 Correct 295 ms 344 KB Output is correct
20 Correct 286 ms 344 KB Output is correct
21 Correct 762 ms 600 KB Output is correct
22 Correct 783 ms 600 KB Output is correct
23 Correct 777 ms 676 KB Output is correct
24 Correct 826 ms 600 KB Output is correct
25 Correct 8 ms 344 KB Output is correct
26 Correct 5 ms 344 KB Output is correct
27 Correct 27 ms 420 KB Output is correct
28 Correct 24 ms 340 KB Output is correct
29 Correct 15 ms 344 KB Output is correct
30 Correct 177 ms 344 KB Output is correct
31 Correct 189 ms 344 KB Output is correct
32 Correct 188 ms 344 KB Output is correct
33 Correct 270 ms 344 KB Output is correct
34 Correct 276 ms 344 KB Output is correct
35 Correct 301 ms 340 KB Output is correct
36 Correct 799 ms 600 KB Output is correct
37 Correct 727 ms 600 KB Output is correct
38 Correct 773 ms 600 KB Output is correct
39 Correct 765 ms 600 KB Output is correct
40 Correct 769 ms 600 KB Output is correct
41 Correct 736 ms 600 KB Output is correct
42 Correct 730 ms 600 KB Output is correct
43 Correct 705 ms 600 KB Output is correct
44 Correct 714 ms 600 KB Output is correct
45 Correct 7 ms 344 KB Output is correct
46 Correct 8 ms 344 KB Output is correct
47 Correct 23 ms 344 KB Output is correct
48 Correct 18 ms 344 KB Output is correct
49 Correct 17 ms 344 KB Output is correct
50 Correct 163 ms 344 KB Output is correct
51 Correct 172 ms 344 KB Output is correct
52 Correct 157 ms 344 KB Output is correct
53 Correct 259 ms 344 KB Output is correct
54 Correct 239 ms 344 KB Output is correct
55 Correct 264 ms 344 KB Output is correct
56 Correct 668 ms 600 KB Output is correct
57 Correct 755 ms 684 KB Output is correct
58 Correct 713 ms 684 KB Output is correct
59 Correct 717 ms 676 KB Output is correct
60 Correct 747 ms 676 KB Output is correct
61 Correct 704 ms 600 KB Output is correct
62 Correct 778 ms 600 KB Output is correct
63 Correct 762 ms 684 KB Output is correct
64 Correct 780 ms 600 KB Output is correct

Subtask #4
19.999999998 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 344 KB Output is correct
2 Correct 17 ms 344 KB Output is correct
3 Partially correct 146 ms 344 KB Output is partially correct
4 Partially correct 370 ms 592 KB Output is partially correct
5 Partially correct 787 ms 600 KB Output is partially correct
6 Correct 7 ms 596 KB Output is correct
7 Correct 23 ms 344 KB Output is correct
8 Partially correct 141 ms 344 KB Output is partially correct
9 Partially correct 293 ms 344 KB Output is partially correct
10 Partially correct 847 ms 600 KB Output is partially correct
11 Partially correct 841 ms 600 KB Output is partially correct
12 Partially correct 841 ms 600 KB Output is partially correct
13 Partially correct 802 ms 600 KB Output is partially correct
14 Correct 7 ms 344 KB Output is correct
15 Correct 11 ms 344 KB Output is correct
16 Correct 39 ms 344 KB Output is correct
17 Partially correct 112 ms 344 KB Output is partially correct
18 Partially correct 180 ms 344 KB Output is partially correct
19 Partially correct 296 ms 344 KB Output is partially correct
20 Partially correct 294 ms 344 KB Output is partially correct
21 Correct 10 ms 344 KB Output is correct
22 Correct 9 ms 344 KB Output is correct
23 Correct 29 ms 344 KB Output is correct
24 Correct 16 ms 344 KB Output is correct
25 Correct 29 ms 344 KB Output is correct
26 Partially correct 190 ms 344 KB Output is partially correct
27 Partially correct 165 ms 344 KB Output is partially correct
28 Partially correct 159 ms 344 KB Output is partially correct
29 Partially correct 292 ms 344 KB Output is partially correct
30 Partially correct 301 ms 344 KB Output is partially correct
31 Partially correct 249 ms 344 KB Output is partially correct
32 Correct 7 ms 344 KB Output is correct
33 Correct 7 ms 344 KB Output is correct
34 Correct 18 ms 344 KB Output is correct
35 Correct 13 ms 344 KB Output is correct
36 Correct 26 ms 344 KB Output is correct
37 Partially correct 146 ms 344 KB Output is partially correct
38 Partially correct 162 ms 344 KB Output is partially correct
39 Partially correct 178 ms 596 KB Output is partially correct
40 Partially correct 261 ms 596 KB Output is partially correct
41 Partially correct 237 ms 344 KB Output is partially correct
42 Partially correct 253 ms 344 KB Output is partially correct
43 Partially correct 752 ms 600 KB Output is partially correct
44 Partially correct 699 ms 600 KB Output is partially correct
45 Partially correct 736 ms 676 KB Output is partially correct
46 Partially correct 711 ms 600 KB Output is partially correct
47 Partially correct 737 ms 600 KB Output is partially correct
48 Partially correct 778 ms 600 KB Output is partially correct
49 Partially correct 701 ms 600 KB Output is partially correct
50 Partially correct 703 ms 600 KB Output is partially correct
51 Partially correct 757 ms 600 KB Output is partially correct
52 Partially correct 701 ms 600 KB Output is partially correct
53 Partially correct 706 ms 600 KB Output is partially correct
54 Partially correct 724 ms 600 KB Output is partially correct
55 Partially correct 708 ms 600 KB Output is partially correct
56 Partially correct 742 ms 600 KB Output is partially correct
57 Partially correct 803 ms 596 KB Output is partially correct
58 Partially correct 820 ms 600 KB Output is partially correct
59 Partially correct 797 ms 600 KB Output is partially correct
60 Partially correct 813 ms 600 KB Output is partially correct
61 Partially correct 805 ms 596 KB Output is partially correct
62 Partially correct 796 ms 680 KB Output is partially correct
63 Partially correct 788 ms 676 KB Output is partially correct
64 Partially correct 842 ms 684 KB Output is partially correct
65 Partially correct 759 ms 692 KB Output is partially correct
66 Partially correct 817 ms 684 KB Output is partially correct
67 Partially correct 754 ms 600 KB Output is partially correct
68 Partially correct 790 ms 600 KB Output is partially correct
69 Partially correct 693 ms 680 KB Output is partially correct
70 Partially correct 714 ms 600 KB Output is partially correct
71 Partially correct 726 ms 680 KB Output is partially correct
72 Partially correct 786 ms 676 KB Output is partially correct
73 Partially correct 714 ms 600 KB Output is partially correct
74 Partially correct 716 ms 600 KB Output is partially correct
75 Partially correct 713 ms 600 KB Output is partially correct
76 Partially correct 682 ms 600 KB Output is partially correct
77 Partially correct 696 ms 684 KB Output is partially correct
78 Partially correct 703 ms 688 KB Output is partially correct
79 Partially correct 710 ms 680 KB Output is partially correct
80 Partially correct 673 ms 684 KB Output is partially correct
81 Partially correct 676 ms 600 KB Output is partially correct
82 Partially correct 737 ms 600 KB Output is partially correct