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Submission #997475

# Submission time Handle Problem Language Result Execution time Memory
997475 2024-06-12T11:16:15 Z amirhoseinfar1385 Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 53 ms 8272 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn=50000+10;
vector<int>adj[maxn];
int cnt[maxn],n,k,tartib[maxn],mask[maxn],msk[maxn],ind[maxn],lg[maxn];

void vorod(){
	cin>>n>>k;
	for(int i=0;i<n;i++){
		cin>>cnt[i];
		adj[i].resize(cnt[i]);
		for(int j=0;j<cnt[i];j++){
			cin>>adj[i][j];
		}
	}
}

bool cmp(int a,int b){
	return tartib[b]<tartib[a];
}

void pre(){
	lg[1]=0;
	for(int i=2;i<(1<<12);i++){
		lg[i]=lg[i/2]+1;
	}
	vector<int>v;
	for(int i=0;i<n;i++){
		if(cnt[i]<=k){
			v.push_back(i);
		}
	}
	for(int i=0;i<n;i++){
		//cout<<v.size()<<" "<<v[i]<<endl;
		tartib[v[i]]=i;
		for(auto x:adj[v[i]]){
			//cout<<"kam: "<<x<<" "<<i<<" "<<cnt[x]<<endl;
			cnt[x]--;
			if(cnt[x]==k){
				v.push_back(x);
			}
		}
	}
	for(int i=0;i<n;i++){
		sort(adj[i].begin(),adj[i].end(),cmp);
		while((int)adj[i].size()>0&&tartib[adj[i].back()]<tartib[i]){
			adj[i].pop_back();
		}
	}
}

int cal(int u){
	//cout<<u<<" "<<(int)adj[u].size()<<" hey"<<endl;
	for(int i=0;i<(int)adj[u].size();i++){
		ind[adj[u][i]]=i;
	}
	for(int i=0;i<(int)adj[u].size();i++){
		int v=adj[u][i];
		msk[v]|=(1<<ind[v]);
		for(auto x:adj[v]){
			if(ind[x]==-1){
				continue;
			}
			msk[v]|=(1<<ind[x]);
			msk[x]|=(1<<ind[v]);
		}
	}
	mask[0]=(1<<(int)adj[u].size())-1;
	int ret=0;
	for(int i=1;i<(1<<(int)adj[u].size());i++){
		int w=(i&(-i));
		int v=adj[u][lg[w]];
		if(i!=w){
			mask[i]=(mask[i^w]&msk[v]);
		}else{
			mask[i]=msk[v];
		}
		if((mask[i]&i)==i){
			ret=max(ret,__builtin_popcount(i));
		}
	}	
	ret++;
	for(auto x:adj[u]){
		msk[x]=0;
		ind[x]=-1;
	}
	return ret;
}

void solve(){
	//cout<<"salam"<<endl;
	int res=1;
	for(int i=0;i<maxn;i++){
		ind[i]=-1;
	}
	for(int i=0;i<n;i++){
		res=max(res,cal(i));
	}
	cout<<res<<"\n";
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	vorod();
	pre();
	solve();
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 2 ms 2652 KB Output is correct
4 Correct 2 ms 2652 KB Output is correct
5 Correct 2 ms 2652 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 2 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 2 ms 2652 KB Output is correct
4 Correct 2 ms 2652 KB Output is correct
5 Correct 2 ms 2652 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 2 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 2 ms 2652 KB Output is correct
12 Correct 2 ms 2652 KB Output is correct
13 Correct 0 ms 2652 KB Output is correct
14 Correct 2 ms 2884 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 2 ms 2908 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 2 ms 2740 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 2 ms 2652 KB Output is correct
21 Correct 1 ms 2652 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 2 ms 2904 KB Output is correct
24 Correct 1 ms 2652 KB Output is correct
25 Correct 2 ms 2936 KB Output is correct
26 Correct 2 ms 2908 KB Output is correct
27 Correct 2 ms 2908 KB Output is correct
28 Correct 2 ms 2740 KB Output is correct
29 Correct 2 ms 2904 KB Output is correct
30 Correct 2 ms 2908 KB Output is correct
31 Correct 2 ms 2816 KB Output is correct
32 Correct 2 ms 2736 KB Output is correct
33 Correct 2 ms 2908 KB Output is correct
34 Correct 2 ms 2904 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 1 ms 2652 KB Output is correct
37 Correct 2 ms 2652 KB Output is correct
38 Correct 1 ms 2652 KB Output is correct
39 Correct 1 ms 2652 KB Output is correct
40 Correct 2 ms 2908 KB Output is correct
41 Correct 2 ms 2652 KB Output is correct
42 Correct 2 ms 2908 KB Output is correct
43 Correct 3 ms 2908 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2648 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2652 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 49 ms 5332 KB Output is correct
12 Correct 1 ms 2648 KB Output is correct
13 Correct 53 ms 8272 KB Output is correct
14 Correct 1 ms 2648 KB Output is correct
15 Correct 48 ms 8028 KB Output is correct
16 Correct 51 ms 7844 KB Output is correct
17 Correct 50 ms 7864 KB Output is correct
18 Correct 53 ms 8020 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 2 ms 2652 KB Output is correct
4 Correct 2 ms 2652 KB Output is correct
5 Correct 2 ms 2652 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 2 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 2 ms 2652 KB Output is correct
12 Correct 2 ms 2652 KB Output is correct
13 Correct 0 ms 2652 KB Output is correct
14 Correct 2 ms 2884 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 2 ms 2908 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 2 ms 2740 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 2 ms 2652 KB Output is correct
21 Correct 1 ms 2652 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 2 ms 2904 KB Output is correct
24 Correct 1 ms 2652 KB Output is correct
25 Correct 2 ms 2936 KB Output is correct
26 Correct 2 ms 2908 KB Output is correct
27 Correct 2 ms 2908 KB Output is correct
28 Correct 2 ms 2740 KB Output is correct
29 Correct 2 ms 2904 KB Output is correct
30 Correct 2 ms 2908 KB Output is correct
31 Correct 2 ms 2816 KB Output is correct
32 Correct 2 ms 2736 KB Output is correct
33 Correct 2 ms 2908 KB Output is correct
34 Correct 2 ms 2904 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 1 ms 2652 KB Output is correct
37 Correct 2 ms 2652 KB Output is correct
38 Correct 1 ms 2652 KB Output is correct
39 Correct 1 ms 2652 KB Output is correct
40 Correct 2 ms 2908 KB Output is correct
41 Correct 2 ms 2652 KB Output is correct
42 Correct 2 ms 2908 KB Output is correct
43 Correct 3 ms 2908 KB Output is correct
44 Correct 5 ms 2908 KB Output is correct
45 Correct 0 ms 2396 KB Output is correct
46 Correct 3 ms 2904 KB Output is correct
47 Correct 4 ms 2908 KB Output is correct
48 Correct 3 ms 2908 KB Output is correct
49 Correct 4 ms 2972 KB Output is correct
50 Correct 5 ms 2908 KB Output is correct
51 Correct 10 ms 3420 KB Output is correct
52 Correct 2 ms 2908 KB Output is correct
53 Correct 14 ms 3540 KB Output is correct
54 Correct 13 ms 3400 KB Output is correct
55 Correct 2 ms 2904 KB Output is correct
56 Correct 2 ms 2908 KB Output is correct
57 Correct 1 ms 2652 KB Output is correct
58 Correct 13 ms 3480 KB Output is correct
59 Correct 2 ms 2904 KB Output is correct
60 Correct 2 ms 2908 KB Output is correct
61 Correct 3 ms 2908 KB Output is correct
62 Correct 3 ms 2908 KB Output is correct
63 Correct 5 ms 2908 KB Output is correct
64 Correct 4 ms 2904 KB Output is correct
65 Correct 2 ms 2908 KB Output is correct
66 Correct 3 ms 2812 KB Output is correct
67 Correct 6 ms 3012 KB Output is correct
68 Correct 4 ms 2904 KB Output is correct
69 Correct 2 ms 2908 KB Output is correct
70 Correct 4 ms 3024 KB Output is correct
71 Correct 6 ms 3160 KB Output is correct
72 Correct 5 ms 3164 KB Output is correct
73 Correct 2 ms 2908 KB Output is correct
74 Correct 4 ms 2908 KB Output is correct
75 Correct 5 ms 3164 KB Output is correct
76 Correct 4 ms 2908 KB Output is correct
77 Correct 7 ms 3276 KB Output is correct
78 Correct 2 ms 2908 KB Output is correct
79 Correct 5 ms 2908 KB Output is correct
80 Correct 3 ms 2908 KB Output is correct
81 Correct 7 ms 3164 KB Output is correct
82 Correct 1 ms 2652 KB Output is correct
83 Correct 4 ms 2908 KB Output is correct
84 Correct 6 ms 3164 KB Output is correct
85 Correct 1 ms 2652 KB Output is correct
86 Correct 5 ms 3164 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 2 ms 2652 KB Output is correct
4 Correct 2 ms 2652 KB Output is correct
5 Correct 2 ms 2652 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 2 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 2 ms 2652 KB Output is correct
12 Correct 2 ms 2652 KB Output is correct
13 Correct 0 ms 2652 KB Output is correct
14 Correct 2 ms 2884 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 2 ms 2908 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 2 ms 2740 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 2 ms 2652 KB Output is correct
21 Correct 1 ms 2652 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 2 ms 2904 KB Output is correct
24 Correct 1 ms 2652 KB Output is correct
25 Correct 2 ms 2936 KB Output is correct
26 Correct 2 ms 2908 KB Output is correct
27 Correct 2 ms 2908 KB Output is correct
28 Correct 2 ms 2740 KB Output is correct
29 Correct 2 ms 2904 KB Output is correct
30 Correct 2 ms 2908 KB Output is correct
31 Correct 2 ms 2816 KB Output is correct
32 Correct 2 ms 2736 KB Output is correct
33 Correct 2 ms 2908 KB Output is correct
34 Correct 2 ms 2904 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 1 ms 2652 KB Output is correct
37 Correct 2 ms 2652 KB Output is correct
38 Correct 1 ms 2652 KB Output is correct
39 Correct 1 ms 2652 KB Output is correct
40 Correct 2 ms 2908 KB Output is correct
41 Correct 2 ms 2652 KB Output is correct
42 Correct 2 ms 2908 KB Output is correct
43 Correct 3 ms 2908 KB Output is correct
44 Correct 1 ms 2652 KB Output is correct
45 Correct 31 ms 6672 KB Output is correct
46 Correct 18 ms 5464 KB Output is correct
47 Correct 30 ms 6736 KB Output is correct
48 Correct 30 ms 6668 KB Output is correct
49 Correct 16 ms 5468 KB Output is correct
50 Correct 50 ms 7632 KB Output is correct
51 Correct 31 ms 6744 KB Output is correct
52 Correct 14 ms 5464 KB Output is correct
53 Correct 15 ms 5468 KB Output is correct
54 Correct 3 ms 3040 KB Output is correct
55 Correct 47 ms 7636 KB Output is correct
56 Correct 9 ms 4952 KB Output is correct
57 Correct 13 ms 5344 KB Output is correct
58 Correct 18 ms 5412 KB Output is correct
59 Correct 8 ms 4956 KB Output is correct
60 Correct 8 ms 4900 KB Output is correct
61 Correct 19 ms 5468 KB Output is correct
62 Correct 12 ms 5212 KB Output is correct
63 Correct 21 ms 5720 KB Output is correct
64 Correct 8 ms 4952 KB Output is correct
65 Correct 25 ms 5980 KB Output is correct
66 Correct 12 ms 5204 KB Output is correct
67 Correct 20 ms 5724 KB Output is correct
68 Correct 25 ms 5996 KB Output is correct
69 Correct 25 ms 5976 KB Output is correct
70 Correct 12 ms 5212 KB Output is correct
71 Correct 23 ms 5960 KB Output is correct
72 Correct 21 ms 5652 KB Output is correct
73 Correct 27 ms 6236 KB Output is correct
74 Correct 11 ms 5212 KB Output is correct
75 Correct 12 ms 4188 KB Output is correct
76 Correct 21 ms 5724 KB Output is correct
77 Correct 28 ms 6264 KB Output is correct
78 Correct 14 ms 4444 KB Output is correct
79 Correct 11 ms 4184 KB Output is correct
80 Correct 6 ms 3416 KB Output is correct
81 Correct 14 ms 4440 KB Output is correct
82 Correct 20 ms 5720 KB Output is correct
83 Correct 6 ms 3420 KB Output is correct
84 Correct 20 ms 5720 KB Output is correct