oj.uz

Submission #1037896

# Submission time Handle Problem Language Result Execution time Memory
1037896 2024-07-29T09:54:29 Z Zicrus Longest Trip (IOI23_longesttrip) C++17
40 / 100
 911 ms 1584 KB 
#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;

typedef long long ll;

vector<vector<ll>> adj;
vector<bool> vst;
mt19937 mt;

vector<int> mxRand() {
    ll n = adj.size();
    ll start = mt() % n;
    ll cur = start;
    vector<int> res = {(int)start};
loop:
    vst[cur] = true;
    shuffle(adj[cur].begin(), adj[cur].end(), mt);
    for (auto &e : adj[cur]) {
        if (!vst[e]) {
            cur = e;
            res.push_back(e);
            goto loop;
        }
    }
    for (auto &e : res) vst[e] = false;
    return res;
}

vector<int> longest_trip(int n, int d) {
    mt = mt19937(time(0));
    adj = vector<vector<ll>>(n);
    vst = vector<bool>(n);
    for (int i = 0; i < n; i++) {
        for (int j = i+1; j < n; j++) {
            if (are_connected({i}, {j})) {
                adj[i].push_back(j);
                adj[j].push_back(i);
            }
        }
    }

    vector<int> res;
    ll comp = n <= 100 ? 150 : 50;
    if (n <= 50) comp = 300;
    for (int i = 0; i < 50; i++) {
        vector<int> nw = mxRand();
        if (nw.size() > res.size()) res = nw;
    }
    return res;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:44:8: warning: variable 'comp' set but not used [-Wunused-but-set-variable]
   44 |     ll comp = n <= 100 ? 150 : 50;
      |        ^~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 204 ms 1288 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 344 KB Output is correct
2 Correct 35 ms 344 KB Output is correct
3 Correct 158 ms 604 KB Output is correct
4 Correct 410 ms 740 KB Output is correct
5 Correct 852 ms 996 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 344 KB Output is correct
2 Correct 25 ms 344 KB Output is correct
3 Correct 157 ms 472 KB Output is correct
4 Correct 432 ms 1032 KB Output is correct
5 Correct 892 ms 1320 KB Output is correct
6 Correct 11 ms 344 KB Output is correct
7 Correct 28 ms 344 KB Output is correct
8 Correct 167 ms 468 KB Output is correct
9 Correct 311 ms 864 KB Output is correct
10 Correct 911 ms 1440 KB Output is correct
11 Correct 898 ms 1568 KB Output is correct
12 Correct 832 ms 1156 KB Output is correct
13 Correct 796 ms 1536 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 344 KB Output is correct
2 Correct 19 ms 344 KB Output is correct
3 Correct 133 ms 476 KB Output is correct
4 Correct 335 ms 580 KB Output is correct
5 Correct 738 ms 996 KB Output is correct
6 Correct 9 ms 344 KB Output is correct
7 Correct 27 ms 344 KB Output is correct
8 Correct 129 ms 484 KB Output is correct
9 Correct 283 ms 556 KB Output is correct
10 Correct 670 ms 1264 KB Output is correct
11 Correct 755 ms 1016 KB Output is correct
12 Correct 708 ms 1212 KB Output is correct
13 Correct 738 ms 1020 KB Output is correct
14 Correct 9 ms 344 KB Output is correct
15 Correct 13 ms 344 KB Output is correct
16 Correct 33 ms 344 KB Output is correct
17 Correct 75 ms 436 KB Output is correct
18 Correct 147 ms 852 KB Output is correct
19 Correct 316 ms 752 KB Output is correct
20 Correct 257 ms 716 KB Output is correct
21 Correct 713 ms 1260 KB Output is correct
22 Correct 746 ms 1336 KB Output is correct
23 Correct 776 ms 1168 KB Output is correct
24 Correct 747 ms 1512 KB Output is correct
25 Correct 9 ms 344 KB Output is correct
26 Correct 8 ms 344 KB Output is correct
27 Correct 25 ms 344 KB Output is correct
28 Correct 25 ms 344 KB Output is correct
29 Correct 18 ms 344 KB Output is correct
30 Correct 173 ms 476 KB Output is correct
31 Correct 182 ms 464 KB Output is correct
32 Correct 159 ms 596 KB Output is correct
33 Correct 311 ms 548 KB Output is correct
34 Correct 243 ms 544 KB Output is correct
35 Correct 289 ms 696 KB Output is correct
36 Correct 750 ms 1368 KB Output is correct
37 Correct 741 ms 1060 KB Output is correct
38 Correct 755 ms 1244 KB Output is correct
39 Correct 767 ms 928 KB Output is correct
40 Correct 694 ms 1320 KB Output is correct
41 Correct 729 ms 920 KB Output is correct
42 Correct 743 ms 892 KB Output is correct
43 Correct 718 ms 1140 KB Output is correct
44 Correct 754 ms 1192 KB Output is correct
45 Correct 14 ms 344 KB Output is correct
46 Correct 9 ms 344 KB Output is correct
47 Correct 18 ms 344 KB Output is correct
48 Correct 27 ms 344 KB Output is correct
49 Correct 16 ms 344 KB Output is correct
50 Correct 179 ms 480 KB Output is correct
51 Correct 165 ms 344 KB Output is correct
52 Correct 175 ms 468 KB Output is correct
53 Correct 325 ms 544 KB Output is correct
54 Correct 289 ms 544 KB Output is correct
55 Correct 296 ms 792 KB Output is correct
56 Correct 790 ms 1336 KB Output is correct
57 Correct 768 ms 1120 KB Output is correct
58 Correct 656 ms 1044 KB Output is correct
59 Correct 761 ms 1052 KB Output is correct
60 Correct 659 ms 1084 KB Output is correct
61 Correct 665 ms 784 KB Output is correct
62 Correct 628 ms 912 KB Output is correct
63 Correct 760 ms 876 KB Output is correct
64 Correct 772 ms 1584 KB Output is correct

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 24 ms 344 KB Output is correct
3 Partially correct 149 ms 732 KB Output is partially correct
4 Partially correct 382 ms 788 KB Output is partially correct
5 Partially correct 839 ms 1236 KB Output is partially correct
6 Correct 12 ms 344 KB Output is correct
7 Correct 25 ms 344 KB Output is correct
8 Partially correct 152 ms 344 KB Output is partially correct
9 Partially correct 341 ms 944 KB Output is partially correct
10 Partially correct 828 ms 1092 KB Output is partially correct
11 Partially correct 829 ms 1092 KB Output is partially correct
12 Partially correct 885 ms 1432 KB Output is partially correct
13 Partially correct 891 ms 1336 KB Output is partially correct
14 Correct 8 ms 344 KB Output is correct
15 Correct 13 ms 344 KB Output is correct
16 Correct 41 ms 344 KB Output is correct
17 Partially correct 100 ms 344 KB Output is partially correct
18 Partially correct 178 ms 472 KB Output is partially correct
19 Partially correct 342 ms 568 KB Output is partially correct
20 Partially correct 318 ms 556 KB Output is partially correct
21 Correct 11 ms 344 KB Output is correct
22 Correct 12 ms 344 KB Output is correct
23 Correct 28 ms 344 KB Output is correct
24 Correct 25 ms 344 KB Output is correct
25 Correct 29 ms 344 KB Output is correct
26 Partially correct 222 ms 476 KB Output is partially correct
27 Partially correct 203 ms 468 KB Output is partially correct
28 Partially correct 170 ms 600 KB Output is partially correct
29 Partially correct 297 ms 600 KB Output is partially correct
30 Partially correct 337 ms 548 KB Output is partially correct
31 Partially correct 328 ms 756 KB Output is partially correct
32 Correct 11 ms 344 KB Output is correct
33 Correct 15 ms 344 KB Output is correct
34 Correct 26 ms 344 KB Output is correct
35 Correct 30 ms 344 KB Output is correct
36 Correct 23 ms 344 KB Output is correct
37 Incorrect 145 ms 716 KB Incorrect
38 Halted 0 ms 0 KB -