oj.uz

Submission #939423

# Submission time Handle Problem Language Result Execution time Memory
939423 2024-03-06T10:51:57 Z WanWan Longest Trip (IOI23_longesttrip) C++17
40 / 100
 805 ms 1112 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
#else
#define debug(...)
#endif
const int MAXN = 260;
const int inf=1000000500ll;
const long long oo =1000000000000000500ll;
const int MOD = (int)1e9+7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef pair<int,int> pi; 

vector<int>out;
int n,d;
bool mat[MAXN][MAXN];
bool vis[MAXN];
vector<int> ord;
void dfs(int x){
    vis[x]=1;
    out.push_back(x);
    
   
    for(int i=0;i<n;i++){
        if(mat[x][i] && !vis[i]){
            dfs(i);
            return;
        }
    }
}
vector<int>solve(int st){
    memset(vis,0,sizeof vis);
    out.clear();
    dfs(st);
    return out;
}
std::vector<int> longest_trip(int N, int D)
{
    ord.clear();

    for(int i=0;i<n;i++){
        ord.push_back(i);
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            mat[i][j]=0;
        }
    }
    
    n=N;
    d=D;
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            vector<int>A;A.push_back(i);
            vector<int>B;B.push_back(j);
            mat[i][j]=mat[j][i]=are_connected(A,B);
        }
    }
    if(n<=9){
        vector<int> vec;
        vector<int> ans;
        for(int i=0;i<n;i++)vec.push_back(i);
        do {
            int cur=vec[0];
            vector<int>hh;
            hh.push_back(cur);
            for(int i=1;i<vec.size();i++){
                if(mat[cur][vec[i]]){
                    hh.push_back(vec[i]);
                    cur=vec[i];
                }
            }
            if(hh.size()>ans.size())ans=hh;
        } while(next_permutation(vec.begin(),vec.end()));
        return ans;
    }
    vector<int> ans;
    for(int i=0;i<n;i++){//starting point
        vector<int>res=solve(i);
        if(res.size()>ans.size())ans=res;
    }
    return ans;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:72:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |             for(int i=1;i<vec.size();i++){
      |                         ~^~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 177 ms 484 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 22 ms 344 KB Output is correct
3 Correct 117 ms 344 KB Output is correct
4 Correct 356 ms 592 KB Output is correct
5 Correct 696 ms 488 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 19 ms 344 KB Output is correct
3 Correct 119 ms 344 KB Output is correct
4 Correct 368 ms 592 KB Output is correct
5 Correct 780 ms 488 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 22 ms 448 KB Output is correct
8 Correct 125 ms 592 KB Output is correct
9 Correct 274 ms 592 KB Output is correct
10 Correct 794 ms 480 KB Output is correct
11 Correct 794 ms 480 KB Output is correct
12 Correct 796 ms 480 KB Output is correct
13 Correct 798 ms 484 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 22 ms 344 KB Output is correct
3 Correct 120 ms 600 KB Output is correct
4 Correct 338 ms 452 KB Output is correct
5 Correct 774 ms 856 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 20 ms 344 KB Output is correct
8 Correct 128 ms 344 KB Output is correct
9 Correct 270 ms 592 KB Output is correct
10 Correct 755 ms 480 KB Output is correct
11 Correct 685 ms 600 KB Output is correct
12 Correct 753 ms 480 KB Output is correct
13 Correct 757 ms 596 KB Output is correct
14 Correct 6 ms 352 KB Output is correct
15 Correct 14 ms 596 KB Output is correct
16 Correct 42 ms 344 KB Output is correct
17 Correct 74 ms 344 KB Output is correct
18 Correct 124 ms 344 KB Output is correct
19 Correct 248 ms 448 KB Output is correct
20 Correct 258 ms 592 KB Output is correct
21 Correct 727 ms 484 KB Output is correct
22 Correct 749 ms 480 KB Output is correct
23 Correct 717 ms 492 KB Output is correct
24 Correct 746 ms 500 KB Output is correct
25 Correct 9 ms 344 KB Output is correct
26 Correct 9 ms 344 KB Output is correct
27 Correct 23 ms 344 KB Output is correct
28 Correct 23 ms 344 KB Output is correct
29 Correct 18 ms 344 KB Output is correct
30 Correct 151 ms 444 KB Output is correct
31 Correct 152 ms 452 KB Output is correct
32 Correct 151 ms 448 KB Output is correct
33 Correct 248 ms 592 KB Output is correct
34 Correct 243 ms 464 KB Output is correct
35 Correct 261 ms 460 KB Output is correct
36 Correct 691 ms 488 KB Output is correct
37 Correct 729 ms 484 KB Output is correct
38 Correct 753 ms 852 KB Output is correct
39 Correct 765 ms 600 KB Output is correct
40 Correct 735 ms 600 KB Output is correct
41 Correct 722 ms 488 KB Output is correct
42 Correct 730 ms 484 KB Output is correct
43 Correct 660 ms 484 KB Output is correct
44 Correct 707 ms 484 KB Output is correct
45 Correct 10 ms 344 KB Output is correct
46 Correct 8 ms 344 KB Output is correct
47 Correct 24 ms 344 KB Output is correct
48 Correct 19 ms 344 KB Output is correct
49 Correct 24 ms 344 KB Output is correct
50 Correct 176 ms 448 KB Output is correct
51 Correct 176 ms 440 KB Output is correct
52 Correct 159 ms 448 KB Output is correct
53 Correct 238 ms 448 KB Output is correct
54 Correct 265 ms 456 KB Output is correct
55 Correct 249 ms 704 KB Output is correct
56 Correct 805 ms 488 KB Output is correct
57 Correct 767 ms 1112 KB Output is correct
58 Correct 714 ms 504 KB Output is correct
59 Correct 744 ms 496 KB Output is correct
60 Correct 701 ms 496 KB Output is correct
61 Correct 759 ms 748 KB Output is correct
62 Correct 778 ms 600 KB Output is correct
63 Correct 714 ms 500 KB Output is correct
64 Correct 753 ms 496 KB Output is correct

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 23 ms 344 KB Output is correct
3 Partially correct 117 ms 344 KB Output is partially correct
4 Partially correct 351 ms 452 KB Output is partially correct
5 Partially correct 709 ms 856 KB Output is partially correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 24 ms 344 KB Output is correct
8 Partially correct 130 ms 344 KB Output is partially correct
9 Partially correct 272 ms 444 KB Output is partially correct
10 Partially correct 747 ms 484 KB Output is partially correct
11 Partially correct 730 ms 484 KB Output is partially correct
12 Partially correct 696 ms 484 KB Output is partially correct
13 Partially correct 704 ms 856 KB Output is partially correct
14 Correct 6 ms 344 KB Output is correct
15 Correct 11 ms 344 KB Output is correct
16 Incorrect 6 ms 344 KB Incorrect
17 Halted 0 ms 0 KB -