oj.uz

Submission #197167

# Submission time Handle Problem Language Result Execution time Memory
197167 2020-01-19T12:17:54 Z arnold518 Political Development (BOI17_politicaldevelopment) C++14
16 / 100
 3000 ms 8140 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 5e4;

int N, K, ans=1;
vector<int> adj[MAXN+10];
bool vis[MAXN+10];

int main()
{
	int i, j, k, p;
	scanf("%d%d", &N, &K);
	for(i=1; i<=N; i++)
	{
		int s;
		scanf("%d", &s);
		while(s--) { int t; scanf("%d", &t); adj[i].push_back(t+1); }
	}
	for(i=1; i<=N; i++) sort(adj[i].begin(), adj[i].end());

	while(1)
	{
		pii t(987654321, 0);
		for(i=1; i<=N; i++) if(!vis[i]) t=min(t, pii(adj[i].size(), i));
		if(t.second==0) break;
		int now=t.second;

		vector<int> chd;
		for(auto it : adj[now]) chd.push_back(it);

		for(i=0; i<(1<<chd.size()); i++)
		{
			vector<int> V;
			for(j=0; j<chd.size(); j++) if(i&(1<<j)) V.push_back(chd[j]);
			sort(V.begin(), V.end());
			bool flag=true;
			for(j=0; j<V.size(); j++)
			{
				for(k=j+1, p=0; k<V.size(); k++)
				{
					for(; p<adj[V[j]].size() && adj[V[j]][p]<V[k]; p++);
					if(adj[V[j]][p]!=V[k]) flag=false;
				}
			}
			if(flag) ans=max(ans, (int)V.size()+1); 
		}
		vis[now]=true;
		for(auto it : chd) adj[it].erase(lower_bound(adj[it].begin(), adj[it].end(), now));
		adj[now].clear();
	}
	printf("%d", ans);
}

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:39:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(j=0; j<chd.size(); j++) if(i&(1<<j)) V.push_back(chd[j]);
             ~^~~~~~~~~~~
politicaldevelopment.cpp:42:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(j=0; j<V.size(); j++)
             ~^~~~~~~~~
politicaldevelopment.cpp:44:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(k=j+1, p=0; k<V.size(); k++)
                     ~^~~~~~~~~
politicaldevelopment.cpp:46:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for(; p<adj[V[j]].size() && adj[V[j]][p]<V[k]; p++);
            ~^~~~~~~~~~~~~~~~~
politicaldevelopment.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &K);
  ~~~~~^~~~~~~~~~~~~~~~
politicaldevelopment.cpp:21:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &s);
   ~~~~~^~~~~~~~~~
politicaldevelopment.cpp:22:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   while(s--) { int t; scanf("%d", &t); adj[i].push_back(t+1); }
                       ~~~~~^~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1528 KB Output is correct
2 Correct 3 ms 1528 KB Output is correct
3 Correct 120 ms 1732 KB Output is correct
4 Correct 51 ms 1788 KB Output is correct
5 Correct 51 ms 1656 KB Output is correct
6 Correct 57 ms 1652 KB Output is correct
7 Correct 57 ms 1784 KB Output is correct
8 Correct 46 ms 1528 KB Output is correct
9 Correct 9 ms 1528 KB Output is correct
10 Correct 49 ms 1528 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1528 KB Output is correct
2 Correct 3 ms 1528 KB Output is correct
3 Correct 120 ms 1732 KB Output is correct
4 Correct 51 ms 1788 KB Output is correct
5 Correct 51 ms 1656 KB Output is correct
6 Correct 57 ms 1652 KB Output is correct
7 Correct 57 ms 1784 KB Output is correct
8 Correct 46 ms 1528 KB Output is correct
9 Correct 9 ms 1528 KB Output is correct
10 Correct 49 ms 1528 KB Output is correct
11 Correct 51 ms 1656 KB Output is correct
12 Correct 50 ms 1720 KB Output is correct
13 Correct 3 ms 1528 KB Output is correct
14 Correct 50 ms 1656 KB Output is correct
15 Correct 3 ms 1528 KB Output is correct
16 Correct 58 ms 1784 KB Output is correct
17 Correct 3 ms 1528 KB Output is correct
18 Correct 57 ms 1920 KB Output is correct
19 Correct 44 ms 1528 KB Output is correct
20 Correct 75 ms 1656 KB Output is correct
21 Correct 73 ms 1656 KB Output is correct
22 Correct 47 ms 1532 KB Output is correct
23 Correct 129 ms 1784 KB Output is correct
24 Correct 47 ms 1528 KB Output is correct
25 Correct 128 ms 1784 KB Output is correct
26 Correct 129 ms 1656 KB Output is correct
27 Correct 107 ms 1756 KB Output is correct
28 Correct 131 ms 1656 KB Output is correct
29 Correct 107 ms 1788 KB Output is correct
30 Correct 111 ms 1792 KB Output is correct
31 Correct 122 ms 1768 KB Output is correct
32 Correct 105 ms 1784 KB Output is correct
33 Correct 119 ms 1768 KB Output is correct
34 Correct 116 ms 1788 KB Output is correct
35 Correct 28 ms 1656 KB Output is correct
36 Correct 28 ms 1528 KB Output is correct
37 Correct 28 ms 1656 KB Output is correct
38 Correct 9 ms 1528 KB Output is correct
39 Correct 9 ms 1528 KB Output is correct
40 Correct 138 ms 1888 KB Output is correct
41 Correct 10 ms 1524 KB Output is correct
42 Correct 149 ms 1912 KB Output is correct
43 Correct 143 ms 1912 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 1656 KB Output is correct
2 Correct 3 ms 1528 KB Output is correct
3 Correct 4 ms 1528 KB Output is correct
4 Correct 3 ms 1528 KB Output is correct
5 Correct 3 ms 1528 KB Output is correct
6 Correct 3 ms 1528 KB Output is correct
7 Correct 3 ms 1528 KB Output is correct
8 Correct 3 ms 1528 KB Output is correct
9 Correct 3 ms 1528 KB Output is correct
10 Correct 3 ms 1528 KB Output is correct
11 Execution timed out 3039 ms 8140 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1528 KB Output is correct
2 Correct 3 ms 1528 KB Output is correct
3 Correct 120 ms 1732 KB Output is correct
4 Correct 51 ms 1788 KB Output is correct
5 Correct 51 ms 1656 KB Output is correct
6 Correct 57 ms 1652 KB Output is correct
7 Correct 57 ms 1784 KB Output is correct
8 Correct 46 ms 1528 KB Output is correct
9 Correct 9 ms 1528 KB Output is correct
10 Correct 49 ms 1528 KB Output is correct
11 Correct 51 ms 1656 KB Output is correct
12 Correct 50 ms 1720 KB Output is correct
13 Correct 3 ms 1528 KB Output is correct
14 Correct 50 ms 1656 KB Output is correct
15 Correct 3 ms 1528 KB Output is correct
16 Correct 58 ms 1784 KB Output is correct
17 Correct 3 ms 1528 KB Output is correct
18 Correct 57 ms 1920 KB Output is correct
19 Correct 44 ms 1528 KB Output is correct
20 Correct 75 ms 1656 KB Output is correct
21 Correct 73 ms 1656 KB Output is correct
22 Correct 47 ms 1532 KB Output is correct
23 Correct 129 ms 1784 KB Output is correct
24 Correct 47 ms 1528 KB Output is correct
25 Correct 128 ms 1784 KB Output is correct
26 Correct 129 ms 1656 KB Output is correct
27 Correct 107 ms 1756 KB Output is correct
28 Correct 131 ms 1656 KB Output is correct
29 Correct 107 ms 1788 KB Output is correct
30 Correct 111 ms 1792 KB Output is correct
31 Correct 122 ms 1768 KB Output is correct
32 Correct 105 ms 1784 KB Output is correct
33 Correct 119 ms 1768 KB Output is correct
34 Correct 116 ms 1788 KB Output is correct
35 Correct 28 ms 1656 KB Output is correct
36 Correct 28 ms 1528 KB Output is correct
37 Correct 28 ms 1656 KB Output is correct
38 Correct 9 ms 1528 KB Output is correct
39 Correct 9 ms 1528 KB Output is correct
40 Correct 138 ms 1888 KB Output is correct
41 Correct 10 ms 1524 KB Output is correct
42 Correct 149 ms 1912 KB Output is correct
43 Correct 143 ms 1912 KB Output is correct
44 Correct 195 ms 1912 KB Output is correct
45 Correct 5 ms 1528 KB Output is correct
46 Correct 134 ms 1848 KB Output is correct
47 Correct 144 ms 2040 KB Output is correct
48 Correct 134 ms 1936 KB Output is correct
49 Correct 145 ms 2040 KB Output is correct
50 Correct 141 ms 2024 KB Output is correct
51 Correct 625 ms 2424 KB Output is correct
52 Correct 51 ms 1784 KB Output is correct
53 Execution timed out 3080 ms 2552 KB Time limit exceeded
54 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1528 KB Output is correct
2 Correct 3 ms 1528 KB Output is correct
3 Correct 120 ms 1732 KB Output is correct
4 Correct 51 ms 1788 KB Output is correct
5 Correct 51 ms 1656 KB Output is correct
6 Correct 57 ms 1652 KB Output is correct
7 Correct 57 ms 1784 KB Output is correct
8 Correct 46 ms 1528 KB Output is correct
9 Correct 9 ms 1528 KB Output is correct
10 Correct 49 ms 1528 KB Output is correct
11 Correct 51 ms 1656 KB Output is correct
12 Correct 50 ms 1720 KB Output is correct
13 Correct 3 ms 1528 KB Output is correct
14 Correct 50 ms 1656 KB Output is correct
15 Correct 3 ms 1528 KB Output is correct
16 Correct 58 ms 1784 KB Output is correct
17 Correct 3 ms 1528 KB Output is correct
18 Correct 57 ms 1920 KB Output is correct
19 Correct 44 ms 1528 KB Output is correct
20 Correct 75 ms 1656 KB Output is correct
21 Correct 73 ms 1656 KB Output is correct
22 Correct 47 ms 1532 KB Output is correct
23 Correct 129 ms 1784 KB Output is correct
24 Correct 47 ms 1528 KB Output is correct
25 Correct 128 ms 1784 KB Output is correct
26 Correct 129 ms 1656 KB Output is correct
27 Correct 107 ms 1756 KB Output is correct
28 Correct 131 ms 1656 KB Output is correct
29 Correct 107 ms 1788 KB Output is correct
30 Correct 111 ms 1792 KB Output is correct
31 Correct 122 ms 1768 KB Output is correct
32 Correct 105 ms 1784 KB Output is correct
33 Correct 119 ms 1768 KB Output is correct
34 Correct 116 ms 1788 KB Output is correct
35 Correct 28 ms 1656 KB Output is correct
36 Correct 28 ms 1528 KB Output is correct
37 Correct 28 ms 1656 KB Output is correct
38 Correct 9 ms 1528 KB Output is correct
39 Correct 9 ms 1528 KB Output is correct
40 Correct 138 ms 1888 KB Output is correct
41 Correct 10 ms 1524 KB Output is correct
42 Correct 149 ms 1912 KB Output is correct
43 Correct 143 ms 1912 KB Output is correct
44 Correct 3 ms 1528 KB Output is correct
45 Execution timed out 3083 ms 5904 KB Time limit exceeded
46 Halted 0 ms 0 KB -