oj.uz

Submission #840634

# Submission time Handle Problem Language Result Execution time Memory
840634 2023-08-31T14:45:43 Z danikoynov Longest Trip (IOI23_longesttrip) C++17
30 / 100
 987 ms 860 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;

const int maxn = 260;
vector < int > adj[maxn];
int used[maxn], edge[maxn][maxn];

int n;
void dfs(int v, int c)
{
    used[v] = c;
    for (int u : adj[v])
    {
        if (!used[u])
            dfs(u, c);

    }
}

int deg[maxn];
vector < int > construct(int v)
{
    used[v] = 1;
    vector < int > viable;
    for (int u : adj[v])
        if (!used[u])
        viable.push_back(u);

    if (viable.size() == 0)
    {
        vector < int > cur;
        cur.push_back(v);
        return cur;
    }

    if (viable.size() == 1)
    {
        vector < int > res = construct(viable[0]);
        res.push_back(v);
        return res;
    }

    vector < int > r1 = construct(viable[0]), r2;
    for (int u : viable)
    {
        if (used[u] == 0)
            r2 = construct(u);
    }
    vector < int > res = r1;
    if (r2.size() > res.size())
        res = r2;
    res.push_back(v);
    return res;
}
vector<int> longest_trip(int N, int D)
{
    n = N;
    if (n == 0)
        return {};
    if (D == 3)
    {
        vector < int > r;
        for (int i = 0; i < N; i ++)
            r.push_back(i);
        return r;
    }

    for (int i = 0; i < N; i ++)
        adj[i].clear();

    for (int i = 0; i < N; i ++)
        used[i] = 0, deg[i] = 0;
    for (int i = 0; i < N; i ++)
        for (int j = i + 1; j < N; j ++)
        {
            vector < int > a, b;
            a.push_back(i);
            b.push_back(j);
            if (are_connected(a, b))
            {
                adj[i].push_back(j);
                adj[j].push_back(i);

                deg[i] ++;
                deg[j] ++;
            }
        }


    int cp = 0;
    for (int i = 0; i < N; i ++)
    {
        if (!used[i])
            dfs(i, ++ cp);
    }

    if (cp == 2)
    {

        vector < int > a, b;
        for (int i = 0; i < N; i ++)
            if (used[i] == 1)
                a.push_back(i);
            else
                b.push_back(i);
        if (a.size() > b.size())
            return a;
        return b;
    }


    for (int i = 0; i < N; i ++)
        used[i] = 0;
    vector < int > res = construct(0);


    return res;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 199 ms 836 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct

Subtask #2
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 208 KB Output is correct
2 Correct 31 ms 208 KB Output is correct
3 Correct 178 ms 344 KB Output is correct
4 Correct 461 ms 448 KB Output is correct
5 Correct 913 ms 836 KB Output is correct
6 Incorrect 0 ms 208 KB Incorrect
7 Halted 0 ms 0 KB -

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 208 KB Output is correct
2 Correct 29 ms 208 KB Output is correct
3 Correct 169 ms 340 KB Output is correct
4 Correct 409 ms 472 KB Output is correct
5 Correct 880 ms 840 KB Output is correct
6 Correct 11 ms 208 KB Output is correct
7 Correct 31 ms 208 KB Output is correct
8 Correct 156 ms 340 KB Output is correct
9 Correct 316 ms 436 KB Output is correct
10 Correct 692 ms 844 KB Output is correct
11 Correct 888 ms 860 KB Output is correct
12 Correct 901 ms 860 KB Output is correct
13 Correct 919 ms 860 KB Output is correct
14 Correct 10 ms 208 KB Output is correct
15 Correct 15 ms 208 KB Output is correct
16 Correct 50 ms 208 KB Output is correct
17 Correct 68 ms 208 KB Output is correct
18 Correct 147 ms 324 KB Output is correct
19 Correct 312 ms 428 KB Output is correct
20 Correct 287 ms 440 KB Output is correct
21 Correct 773 ms 852 KB Output is correct
22 Correct 763 ms 852 KB Output is correct
23 Correct 901 ms 840 KB Output is correct
24 Correct 818 ms 844 KB Output is correct
25 Correct 15 ms 208 KB Output is correct
26 Correct 14 ms 208 KB Output is correct
27 Correct 29 ms 208 KB Output is correct
28 Correct 39 ms 208 KB Output is correct
29 Correct 36 ms 208 KB Output is correct
30 Correct 226 ms 320 KB Output is correct
31 Correct 183 ms 336 KB Output is correct
32 Correct 193 ms 332 KB Output is correct
33 Correct 221 ms 348 KB Output is correct
34 Correct 342 ms 344 KB Output is correct
35 Correct 330 ms 356 KB Output is correct
36 Correct 895 ms 512 KB Output is correct
37 Correct 831 ms 568 KB Output is correct
38 Correct 987 ms 580 KB Output is correct
39 Correct 871 ms 584 KB Output is correct
40 Correct 821 ms 692 KB Output is correct
41 Correct 881 ms 404 KB Output is correct
42 Correct 931 ms 400 KB Output is correct
43 Correct 758 ms 584 KB Output is correct
44 Correct 941 ms 584 KB Output is correct
45 Correct 7 ms 208 KB Output is correct
46 Correct 10 ms 208 KB Output is correct
47 Correct 31 ms 312 KB Output is correct
48 Correct 28 ms 324 KB Output is correct
49 Correct 27 ms 208 KB Output is correct
50 Correct 280 ms 332 KB Output is correct
51 Correct 184 ms 344 KB Output is correct
52 Correct 242 ms 340 KB Output is correct
53 Correct 317 ms 436 KB Output is correct
54 Correct 275 ms 416 KB Output is correct
55 Correct 285 ms 428 KB Output is correct
56 Correct 802 ms 832 KB Output is correct
57 Correct 860 ms 820 KB Output is correct
58 Correct 820 ms 808 KB Output is correct
59 Correct 805 ms 784 KB Output is correct
60 Correct 845 ms 836 KB Output is correct
61 Correct 834 ms 524 KB Output is correct
62 Correct 919 ms 644 KB Output is correct
63 Correct 847 ms 732 KB Output is correct
64 Correct 727 ms 688 KB Output is correct

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 208 KB Output is correct
2 Correct 29 ms 208 KB Output is correct
3 Partially correct 169 ms 340 KB Output is partially correct
4 Partially correct 415 ms 504 KB Output is partially correct
5 Partially correct 815 ms 840 KB Output is partially correct
6 Incorrect 0 ms 208 KB Incorrect
7 Halted 0 ms 0 KB -