oj.uz

Submission #1065202

# Submission time Handle Problem Language Result Execution time Memory
1065202 2024-08-19T03:09:21 Z LittleOrange Longest Trip (IOI23_longesttrip) C++17
40 / 100
 921 ms 948 KB 
#include "longesttrip.h"

#include <vector>
#include<bits/stdc++.h>
using namespace std;
using ll = int;

std::vector<int> longest_trip(int N, int D)
{
    mt19937_64 mt(random_device{}());
    ll t0 = time(0);
    ll n = N;
    if (D==3){
        vector<ll> r(n);
        iota(r.begin(),r.end(),0);
        return r;
    }
    vector<vector<ll>> a(n,vector<ll>(n,0));
    for(ll i = 0;i<n;i++){
        for(ll j = i+1;j<n;j++){
            a[i][j] = a[j][i] = are_connected({i},{j});
        }
    }
    vector<ll> vis(n,0);
    vector<ll> ret;
    vector<ll> ord(n);
    iota(ord.begin(),ord.end(),0);
    auto it = ord.begin();
    vector<ll> cur;
    function<void(ll)> dfs;
    dfs = [&](ll i){
        cur.push_back(i);
        vis[i] = 1;
        for(;it!=ord.end();it++){
            ll j = *it;
            if(a[i][j]&&!vis[j]){
                dfs(j);
                return;
            }
        }
    };
    ll cnt = 1000;
    while(cnt--){
        shuffle(ord.begin(),ord.end(),mt);
        it = ord.begin();
        dfs(ord[0]);
        if(cur.size()>ret.size()) ret = cur;
        cur.clear();
        fill(vis.begin(),vis.end(),0);
    }
    return ret;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:11:8: warning: unused variable 't0' [-Wunused-variable]
   11 |     ll t0 = time(0);
      |        ^~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Incorrect 224 ms 684 KB Incorrect
3 Halted 0 ms 0 KB -

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 344 KB Output is correct
2 Correct 2 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 344 KB Output is correct
2 Correct 47 ms 344 KB Output is correct
3 Correct 173 ms 344 KB Output is correct
4 Correct 416 ms 484 KB Output is correct
5 Correct 821 ms 684 KB Output is correct
6 Correct 30 ms 344 KB Output is correct
7 Correct 47 ms 344 KB Output is correct
8 Correct 142 ms 344 KB Output is correct
9 Correct 335 ms 592 KB Output is correct
10 Correct 875 ms 688 KB Output is correct
11 Correct 865 ms 696 KB Output is correct
12 Correct 841 ms 688 KB Output is correct
13 Correct 883 ms 692 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 344 KB Output is correct
2 Correct 36 ms 344 KB Output is correct
3 Correct 186 ms 344 KB Output is correct
4 Correct 461 ms 592 KB Output is correct
5 Correct 921 ms 692 KB Output is correct
6 Correct 27 ms 344 KB Output is correct
7 Correct 38 ms 344 KB Output is correct
8 Correct 157 ms 344 KB Output is correct
9 Correct 347 ms 344 KB Output is correct
10 Correct 891 ms 688 KB Output is correct
11 Correct 863 ms 688 KB Output is correct
12 Correct 838 ms 684 KB Output is correct
13 Correct 831 ms 684 KB Output is correct
14 Correct 24 ms 344 KB Output is correct
15 Correct 28 ms 344 KB Output is correct
16 Correct 62 ms 344 KB Output is correct
17 Correct 89 ms 344 KB Output is correct
18 Correct 166 ms 344 KB Output is correct
19 Correct 288 ms 460 KB Output is correct
20 Correct 314 ms 460 KB Output is correct
21 Correct 893 ms 948 KB Output is correct
22 Correct 861 ms 688 KB Output is correct
23 Correct 851 ms 704 KB Output is correct
24 Correct 833 ms 700 KB Output is correct
25 Correct 31 ms 344 KB Output is correct
26 Correct 26 ms 344 KB Output is correct
27 Correct 40 ms 344 KB Output is correct
28 Correct 38 ms 344 KB Output is correct
29 Correct 38 ms 344 KB Output is correct
30 Correct 216 ms 344 KB Output is correct
31 Correct 215 ms 344 KB Output is correct
32 Correct 217 ms 344 KB Output is correct
33 Correct 343 ms 456 KB Output is correct
34 Correct 339 ms 344 KB Output is correct
35 Correct 310 ms 340 KB Output is correct
36 Correct 865 ms 684 KB Output is correct
37 Correct 873 ms 848 KB Output is correct
38 Correct 865 ms 684 KB Output is correct
39 Correct 879 ms 600 KB Output is correct
40 Correct 885 ms 688 KB Output is correct
41 Correct 869 ms 688 KB Output is correct
42 Correct 885 ms 848 KB Output is correct
43 Correct 850 ms 600 KB Output is correct
44 Correct 909 ms 688 KB Output is correct
45 Correct 28 ms 344 KB Output is correct
46 Correct 29 ms 344 KB Output is correct
47 Correct 33 ms 344 KB Output is correct
48 Correct 37 ms 344 KB Output is correct
49 Correct 36 ms 344 KB Output is correct
50 Correct 183 ms 344 KB Output is correct
51 Correct 230 ms 344 KB Output is correct
52 Correct 237 ms 344 KB Output is correct
53 Correct 319 ms 344 KB Output is correct
54 Correct 298 ms 476 KB Output is correct
55 Correct 297 ms 344 KB Output is correct
56 Correct 790 ms 684 KB Output is correct
57 Correct 838 ms 688 KB Output is correct
58 Correct 875 ms 684 KB Output is correct
59 Correct 889 ms 680 KB Output is correct
60 Correct 830 ms 680 KB Output is correct
61 Correct 833 ms 688 KB Output is correct
62 Correct 888 ms 684 KB Output is correct
63 Correct 881 ms 684 KB Output is correct
64 Correct 832 ms 692 KB Output is correct

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 344 KB Output is correct
2 Correct 40 ms 344 KB Output is correct
3 Partially correct 169 ms 344 KB Output is partially correct
4 Partially correct 435 ms 344 KB Output is partially correct
5 Partially correct 783 ms 684 KB Output is partially correct
6 Correct 26 ms 340 KB Output is correct
7 Correct 46 ms 344 KB Output is correct
8 Partially correct 165 ms 340 KB Output is partially correct
9 Partially correct 326 ms 460 KB Output is partially correct
10 Partially correct 858 ms 680 KB Output is partially correct
11 Partially correct 886 ms 680 KB Output is partially correct
12 Partially correct 748 ms 684 KB Output is partially correct
13 Partially correct 919 ms 688 KB Output is partially correct
14 Correct 26 ms 344 KB Output is correct
15 Correct 37 ms 344 KB Output is correct
16 Incorrect 2 ms 344 KB Incorrect
17 Halted 0 ms 0 KB -