oj.uz

Submission #1065228

# Submission time Handle Problem Language Result Execution time Memory
1065228 2024-08-19T03:55:21 Z LittleOrange Longest Trip (IOI23_longesttrip) C++17
15 / 100
 1000 ms 852 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 = 10000;
    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 2 ms 344 KB Output is correct
2 Incorrect 206 ms 688 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 189 ms 344 KB Output is correct
2 Correct 187 ms 344 KB Output is correct
3 Correct 314 ms 344 KB Output is correct
4 Correct 561 ms 592 KB Output is correct
5 Correct 992 ms 684 KB Output is correct
6 Correct 195 ms 344 KB Output is correct
7 Correct 196 ms 344 KB Output is correct
8 Correct 288 ms 344 KB Output is correct
9 Correct 393 ms 460 KB Output is correct
10 Correct 877 ms 684 KB Output is correct
11 Correct 997 ms 852 KB Output is correct
12 Correct 998 ms 684 KB Output is correct
13 Correct 1000 ms 688 KB Output is correct

Subtask #3
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 171 ms 344 KB Output is correct
2 Correct 181 ms 344 KB Output is correct
3 Correct 306 ms 344 KB Output is correct
4 Correct 545 ms 344 KB Output is correct
5 Correct 967 ms 684 KB Output is correct
6 Correct 191 ms 344 KB Output is correct
7 Correct 191 ms 344 KB Output is correct
8 Correct 313 ms 344 KB Output is correct
9 Correct 506 ms 464 KB Output is correct
10 Execution timed out 1004 ms 852 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 180 ms 344 KB Output is correct
2 Correct 181 ms 344 KB Output is correct
3 Partially correct 319 ms 344 KB Output is partially correct
4 Partially correct 585 ms 488 KB Output is partially correct
5 Execution timed out 1033 ms 688 KB Time limit exceeded
6 Halted 0 ms 0 KB -