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답안 #924444

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
924444 2024-02-09T04:02:28 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;
        }
    }
    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)
      |             ~~~~~~^~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 3 ms 1928 KB Output is correct
4 Correct 105 ms 2052 KB Output is correct
5 Correct 101 ms 1880 KB Output is correct
6 Correct 5 ms 1880 KB Output is correct
7 Correct 5 ms 2040 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 1628 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 3 ms 1928 KB Output is correct
4 Correct 105 ms 2052 KB Output is correct
5 Correct 101 ms 1880 KB Output is correct
6 Correct 5 ms 1880 KB Output is correct
7 Correct 5 ms 2040 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 1628 KB Output is correct
11 Correct 101 ms 2080 KB Output is correct
12 Correct 293 ms 2060 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 282 ms 2056 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 7 ms 1884 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 7 ms 1884 KB Output is correct
19 Correct 1 ms 1880 KB Output is correct
20 Correct 2 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 1884 KB Output is correct
25 Correct 5 ms 1884 KB Output is correct
26 Correct 4 ms 1880 KB Output is correct
27 Correct 2 ms 1884 KB Output is correct
28 Correct 3 ms 1884 KB Output is correct
29 Correct 2 ms 1844 KB Output is correct
30 Correct 97 ms 2052 KB Output is correct
31 Correct 4 ms 1880 KB Output is correct
32 Correct 91 ms 2044 KB Output is correct
33 Correct 3 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 3 ms 2140 KB Output is correct
37 Correct 2 ms 1884 KB Output is correct
38 Correct 3 ms 1884 KB Output is correct
39 Correct 3 ms 1884 KB Output is correct
40 Correct 7 ms 1884 KB Output is correct
41 Correct 3 ms 1884 KB Output is correct
42 Correct 8 ms 2088 KB Output is correct
43 Correct 7 ms 1884 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 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 1624 KB Output is correct
6 Correct 1 ms 1844 KB Output is correct
7 Correct 1 ms 1628 KB Output is correct
8 Correct 1 ms 1712 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 2 ms 1628 KB Output is correct
11 Correct 228 ms 6012 KB Output is correct
12 Correct 1 ms 1624 KB Output is correct
13 Correct 260 ms 5932 KB Output is correct
14 Correct 1 ms 1624 KB Output is correct
15 Correct 209 ms 6008 KB Output is correct
16 Correct 220 ms 5968 KB Output is correct
17 Correct 284 ms 6228 KB Output is correct
18 Correct 216 ms 5968 KB Output is correct

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 3 ms 1928 KB Output is correct
4 Correct 105 ms 2052 KB Output is correct
5 Correct 101 ms 1880 KB Output is correct
6 Correct 5 ms 1880 KB Output is correct
7 Correct 5 ms 2040 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 1628 KB Output is correct
11 Correct 101 ms 2080 KB Output is correct
12 Correct 293 ms 2060 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 282 ms 2056 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 7 ms 1884 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 7 ms 1884 KB Output is correct
19 Correct 1 ms 1880 KB Output is correct
20 Correct 2 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 1884 KB Output is correct
25 Correct 5 ms 1884 KB Output is correct
26 Correct 4 ms 1880 KB Output is correct
27 Correct 2 ms 1884 KB Output is correct
28 Correct 3 ms 1884 KB Output is correct
29 Correct 2 ms 1844 KB Output is correct
30 Correct 97 ms 2052 KB Output is correct
31 Correct 4 ms 1880 KB Output is correct
32 Correct 91 ms 2044 KB Output is correct
33 Correct 3 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 3 ms 2140 KB Output is correct
37 Correct 2 ms 1884 KB Output is correct
38 Correct 3 ms 1884 KB Output is correct
39 Correct 3 ms 1884 KB Output is correct
40 Correct 7 ms 1884 KB Output is correct
41 Correct 3 ms 1884 KB Output is correct
42 Correct 8 ms 2088 KB Output is correct
43 Correct 7 ms 1884 KB Output is correct
44 Execution timed out 3049 ms 1884 KB Time limit exceeded
45 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1880 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 3 ms 1928 KB Output is correct
4 Correct 105 ms 2052 KB Output is correct
5 Correct 101 ms 1880 KB Output is correct
6 Correct 5 ms 1880 KB Output is correct
7 Correct 5 ms 2040 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 1628 KB Output is correct
11 Correct 101 ms 2080 KB Output is correct
12 Correct 293 ms 2060 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 282 ms 2056 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 7 ms 1884 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 7 ms 1884 KB Output is correct
19 Correct 1 ms 1880 KB Output is correct
20 Correct 2 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 1884 KB Output is correct
25 Correct 5 ms 1884 KB Output is correct
26 Correct 4 ms 1880 KB Output is correct
27 Correct 2 ms 1884 KB Output is correct
28 Correct 3 ms 1884 KB Output is correct
29 Correct 2 ms 1844 KB Output is correct
30 Correct 97 ms 2052 KB Output is correct
31 Correct 4 ms 1880 KB Output is correct
32 Correct 91 ms 2044 KB Output is correct
33 Correct 3 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 3 ms 2140 KB Output is correct
37 Correct 2 ms 1884 KB Output is correct
38 Correct 3 ms 1884 KB Output is correct
39 Correct 3 ms 1884 KB Output is correct
40 Correct 7 ms 1884 KB Output is correct
41 Correct 3 ms 1884 KB Output is correct
42 Correct 8 ms 2088 KB Output is correct
43 Correct 7 ms 1884 KB Output is correct
44 Correct 1 ms 1628 KB Output is correct
45 Correct 162 ms 4436 KB Output is correct
46 Execution timed out 3053 ms 3676 KB Time limit exceeded
47 Halted 0 ms 0 KB -