oj.uz

Submission #924448

# Submission time Handle Problem Language Result Execution time Memory
924448 2024-02-09T04:06:42 Z Muhammad_Aneeq Political Development (BOI17_politicaldevelopment) C++17
39 / 100
 3000 ms 6228 KB 
/*
بسم الله الرحمن الرحيم
Author:
                          (:Muhammad Aneeq:)
*/
 
#include <iostream>
#include <vector>
#include <set>
using namespace std;
int const N=6e4+10;
vector<int>nei[N]={};
int res[N]={};
bool vis[N]={};
vector<int>f;
int n,k,ans=0;;
void dfs(int n)
{
    if (f.size()==k)
        return;
    vis[n]=1;
    f.push_back(n);
    for (auto j:nei[n])
        res[j]++;
    for (auto i:f)
    {
        if (res[i]!=f.size()-1)
        {
            for (auto j:nei[n])
                res[j]--;
            f.pop_back();
            vis[n]=0;
            return;
        }
    }
    if (f.size()==k)
    {
        ans=max(ans,k);
         for (auto j:nei[n])
            res[j]--;
        f.pop_back();
        vis[n]=0;
        return ;
    }
    for (auto j:nei[n])
    {
        if (!vis[j])
            dfs(j);
    }
    ans=max(ans,int(f.size()));
    for (auto j:nei[n])
        res[j]--;
    f.pop_back();
    vis[n]=0;
}
inline void solve()
{
    cin>>n>>k;
    for (int i=0;i<n;i++)
    {
        int d;
        cin>>d;
        while (d--)
        {
            int x;
            cin>>x;
            if (i!=x)
                nei[i].push_back(x);
        }
    }
    for (int i=1;i<=n;i++)
    {
        for (int j=1;j<=n;j++)
            vis[i]=0;
        dfs(i);
    }
    cout<<min(ans,k)<<endl;
}
int main()
{
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
        solve();
}

Compilation message

politicaldevelopment.cpp: In function 'void dfs(int)':
politicaldevelopment.cpp:19:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   19 |     if (f.size()==k)
      |         ~~~~~~~~^~~
politicaldevelopment.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         if (res[i]!=f.size()-1)
      |             ~~~~~~^~~~~~~~~~~~
politicaldevelopment.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if (f.size()==k)
      |         ~~~~~~~~^~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1624 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 2 ms 1884 KB Output is correct
4 Correct 29 ms 2072 KB Output is correct
5 Correct 29 ms 2076 KB Output is correct
6 Correct 3 ms 1884 KB Output is correct
7 Correct 2 ms 1884 KB Output is correct
8 Correct 1 ms 1628 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1624 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1624 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 2 ms 1884 KB Output is correct
4 Correct 29 ms 2072 KB Output is correct
5 Correct 29 ms 2076 KB Output is correct
6 Correct 3 ms 1884 KB Output is correct
7 Correct 2 ms 1884 KB Output is correct
8 Correct 1 ms 1628 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1624 KB Output is correct
11 Correct 29 ms 1880 KB Output is correct
12 Correct 256 ms 2052 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 272 ms 2072 KB Output is correct
15 Correct 2 ms 1628 KB Output is correct
16 Correct 7 ms 1880 KB Output is correct
17 Correct 1 ms 1624 KB Output is correct
18 Correct 6 ms 1884 KB Output is correct
19 Correct 1 ms 1628 KB Output is correct
20 Correct 3 ms 1884 KB Output is correct
21 Correct 2 ms 1884 KB Output is correct
22 Correct 1 ms 1884 KB Output is correct
23 Correct 4 ms 1884 KB Output is correct
24 Correct 1 ms 1628 KB Output is correct
25 Correct 4 ms 1884 KB Output is correct
26 Correct 3 ms 1892 KB Output is correct
27 Correct 2 ms 1880 KB Output is correct
28 Correct 3 ms 1884 KB Output is correct
29 Correct 2 ms 1884 KB Output is correct
30 Correct 87 ms 1880 KB Output is correct
31 Correct 4 ms 1880 KB Output is correct
32 Correct 86 ms 1884 KB Output is correct
33 Correct 4 ms 1884 KB Output is correct
34 Correct 3 ms 1884 KB Output is correct
35 Correct 2 ms 1884 KB Output is correct
36 Correct 2 ms 1884 KB Output is correct
37 Correct 2 ms 1884 KB Output is correct
38 Correct 2 ms 1884 KB Output is correct
39 Correct 3 ms 2136 KB Output is correct
40 Correct 6 ms 1884 KB Output is correct
41 Correct 3 ms 1884 KB Output is correct
42 Correct 6 ms 1884 KB Output is correct
43 Correct 7 ms 1884 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 1 ms 1628 KB Output is correct
4 Correct 1 ms 1628 KB Output is correct
5 Correct 1 ms 1628 KB Output is correct
6 Correct 1 ms 1628 KB Output is correct
7 Correct 1 ms 1628 KB Output is correct
8 Correct 1 ms 1624 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1628 KB Output is correct
11 Correct 212 ms 6228 KB Output is correct
12 Correct 1 ms 1624 KB Output is correct
13 Correct 255 ms 6008 KB Output is correct
14 Correct 2 ms 1624 KB Output is correct
15 Correct 219 ms 6004 KB Output is correct
16 Correct 206 ms 6008 KB Output is correct
17 Correct 256 ms 5980 KB Output is correct
18 Correct 219 ms 5968 KB Output is correct

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1624 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 2 ms 1884 KB Output is correct
4 Correct 29 ms 2072 KB Output is correct
5 Correct 29 ms 2076 KB Output is correct
6 Correct 3 ms 1884 KB Output is correct
7 Correct 2 ms 1884 KB Output is correct
8 Correct 1 ms 1628 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1624 KB Output is correct
11 Correct 29 ms 1880 KB Output is correct
12 Correct 256 ms 2052 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 272 ms 2072 KB Output is correct
15 Correct 2 ms 1628 KB Output is correct
16 Correct 7 ms 1880 KB Output is correct
17 Correct 1 ms 1624 KB Output is correct
18 Correct 6 ms 1884 KB Output is correct
19 Correct 1 ms 1628 KB Output is correct
20 Correct 3 ms 1884 KB Output is correct
21 Correct 2 ms 1884 KB Output is correct
22 Correct 1 ms 1884 KB Output is correct
23 Correct 4 ms 1884 KB Output is correct
24 Correct 1 ms 1628 KB Output is correct
25 Correct 4 ms 1884 KB Output is correct
26 Correct 3 ms 1892 KB Output is correct
27 Correct 2 ms 1880 KB Output is correct
28 Correct 3 ms 1884 KB Output is correct
29 Correct 2 ms 1884 KB Output is correct
30 Correct 87 ms 1880 KB Output is correct
31 Correct 4 ms 1880 KB Output is correct
32 Correct 86 ms 1884 KB Output is correct
33 Correct 4 ms 1884 KB Output is correct
34 Correct 3 ms 1884 KB Output is correct
35 Correct 2 ms 1884 KB Output is correct
36 Correct 2 ms 1884 KB Output is correct
37 Correct 2 ms 1884 KB Output is correct
38 Correct 2 ms 1884 KB Output is correct
39 Correct 3 ms 2136 KB Output is correct
40 Correct 6 ms 1884 KB Output is correct
41 Correct 3 ms 1884 KB Output is correct
42 Correct 6 ms 1884 KB Output is correct
43 Correct 7 ms 1884 KB Output is correct
44 Execution timed out 3032 ms 1884 KB Time limit exceeded
45 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1624 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 2 ms 1884 KB Output is correct
4 Correct 29 ms 2072 KB Output is correct
5 Correct 29 ms 2076 KB Output is correct
6 Correct 3 ms 1884 KB Output is correct
7 Correct 2 ms 1884 KB Output is correct
8 Correct 1 ms 1628 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1624 KB Output is correct
11 Correct 29 ms 1880 KB Output is correct
12 Correct 256 ms 2052 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 272 ms 2072 KB Output is correct
15 Correct 2 ms 1628 KB Output is correct
16 Correct 7 ms 1880 KB Output is correct
17 Correct 1 ms 1624 KB Output is correct
18 Correct 6 ms 1884 KB Output is correct
19 Correct 1 ms 1628 KB Output is correct
20 Correct 3 ms 1884 KB Output is correct
21 Correct 2 ms 1884 KB Output is correct
22 Correct 1 ms 1884 KB Output is correct
23 Correct 4 ms 1884 KB Output is correct
24 Correct 1 ms 1628 KB Output is correct
25 Correct 4 ms 1884 KB Output is correct
26 Correct 3 ms 1892 KB Output is correct
27 Correct 2 ms 1880 KB Output is correct
28 Correct 3 ms 1884 KB Output is correct
29 Correct 2 ms 1884 KB Output is correct
30 Correct 87 ms 1880 KB Output is correct
31 Correct 4 ms 1880 KB Output is correct
32 Correct 86 ms 1884 KB Output is correct
33 Correct 4 ms 1884 KB Output is correct
34 Correct 3 ms 1884 KB Output is correct
35 Correct 2 ms 1884 KB Output is correct
36 Correct 2 ms 1884 KB Output is correct
37 Correct 2 ms 1884 KB Output is correct
38 Correct 2 ms 1884 KB Output is correct
39 Correct 3 ms 2136 KB Output is correct
40 Correct 6 ms 1884 KB Output is correct
41 Correct 3 ms 1884 KB Output is correct
42 Correct 6 ms 1884 KB Output is correct
43 Correct 7 ms 1884 KB Output is correct
44 Correct 1 ms 1628 KB Output is correct
45 Correct 138 ms 4444 KB Output is correct
46 Execution timed out 3023 ms 3672 KB Time limit exceeded
47 Halted 0 ms 0 KB -