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Submission #997477

# Submission time Handle Problem Language Result Execution time Memory
997477 2024-06-12T11:16:38 Z amirhoseinfar1385 Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 51 ms 5384 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-1){
				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 0 ms 2396 KB Output is correct
3 Correct 1 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 1 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 0 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 0 ms 2396 KB Output is correct
3 Correct 1 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 1 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 0 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 1 ms 2396 KB Output is correct
14 Correct 2 ms 2652 KB Output is correct
15 Correct 2 ms 2392 KB Output is correct
16 Correct 2 ms 2648 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 2 ms 2652 KB Output is correct
19 Correct 1 ms 2636 KB Output is correct
20 Correct 1 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 2652 KB Output is correct
24 Correct 1 ms 2652 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct
26 Correct 2 ms 2652 KB Output is correct
27 Correct 1 ms 2716 KB Output is correct
28 Correct 2 ms 2740 KB Output is correct
29 Correct 2 ms 2652 KB Output is correct
30 Correct 2 ms 2768 KB Output is correct
31 Correct 2 ms 2648 KB Output is correct
32 Correct 2 ms 2648 KB Output is correct
33 Correct 2 ms 2652 KB Output is correct
34 Correct 2 ms 2652 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 2 ms 2652 KB Output is correct
37 Correct 1 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 2648 KB Output is correct
41 Correct 1 ms 2652 KB Output is correct
42 Correct 2 ms 2652 KB Output is correct
43 Correct 2 ms 2652 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2652 KB Output is correct
4 Correct 0 ms 2652 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 48 ms 5244 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 51 ms 5340 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 48 ms 5292 KB Output is correct
16 Correct 47 ms 5200 KB Output is correct
17 Correct 50 ms 5212 KB Output is correct
18 Correct 48 ms 5204 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 0 ms 2396 KB Output is correct
3 Correct 1 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 1 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 0 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 1 ms 2396 KB Output is correct
14 Correct 2 ms 2652 KB Output is correct
15 Correct 2 ms 2392 KB Output is correct
16 Correct 2 ms 2648 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 2 ms 2652 KB Output is correct
19 Correct 1 ms 2636 KB Output is correct
20 Correct 1 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 2652 KB Output is correct
24 Correct 1 ms 2652 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct
26 Correct 2 ms 2652 KB Output is correct
27 Correct 1 ms 2716 KB Output is correct
28 Correct 2 ms 2740 KB Output is correct
29 Correct 2 ms 2652 KB Output is correct
30 Correct 2 ms 2768 KB Output is correct
31 Correct 2 ms 2648 KB Output is correct
32 Correct 2 ms 2648 KB Output is correct
33 Correct 2 ms 2652 KB Output is correct
34 Correct 2 ms 2652 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 2 ms 2652 KB Output is correct
37 Correct 1 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 2648 KB Output is correct
41 Correct 1 ms 2652 KB Output is correct
42 Correct 2 ms 2652 KB Output is correct
43 Correct 2 ms 2652 KB Output is correct
44 Correct 5 ms 2908 KB Output is correct
45 Correct 0 ms 2396 KB Output is correct
46 Correct 2 ms 2652 KB Output is correct
47 Correct 4 ms 2908 KB Output is correct
48 Correct 2 ms 2652 KB Output is correct
49 Correct 4 ms 2908 KB Output is correct
50 Correct 5 ms 2908 KB Output is correct
51 Correct 9 ms 3092 KB Output is correct
52 Correct 2 ms 2652 KB Output is correct
53 Correct 13 ms 2908 KB Output is correct
54 Correct 12 ms 2908 KB Output is correct
55 Correct 2 ms 2652 KB Output is correct
56 Correct 2 ms 2652 KB Output is correct
57 Correct 1 ms 2652 KB Output is correct
58 Correct 13 ms 3108 KB Output is correct
59 Correct 2 ms 2652 KB Output is correct
60 Correct 2 ms 2652 KB Output is correct
61 Correct 2 ms 2652 KB Output is correct
62 Correct 2 ms 2652 KB Output is correct
63 Correct 4 ms 2944 KB Output is correct
64 Correct 4 ms 2908 KB Output is correct
65 Correct 2 ms 2652 KB Output is correct
66 Correct 2 ms 2648 KB Output is correct
67 Correct 7 ms 2908 KB Output is correct
68 Correct 4 ms 2904 KB Output is correct
69 Correct 2 ms 2652 KB Output is correct
70 Correct 4 ms 2908 KB Output is correct
71 Correct 5 ms 2908 KB Output is correct
72 Correct 5 ms 2908 KB Output is correct
73 Correct 2 ms 2652 KB Output is correct
74 Correct 4 ms 2908 KB Output is correct
75 Correct 5 ms 2908 KB Output is correct
76 Correct 3 ms 2652 KB Output is correct
77 Correct 7 ms 2908 KB Output is correct
78 Correct 1 ms 2652 KB Output is correct
79 Correct 3 ms 2652 KB Output is correct
80 Correct 3 ms 2648 KB Output is correct
81 Correct 7 ms 2908 KB Output is correct
82 Correct 1 ms 2652 KB Output is correct
83 Correct 3 ms 2652 KB Output is correct
84 Correct 5 ms 2908 KB Output is correct
85 Correct 1 ms 2652 KB Output is correct
86 Correct 5 ms 2940 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 0 ms 2396 KB Output is correct
3 Correct 1 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 1 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 0 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 1 ms 2396 KB Output is correct
14 Correct 2 ms 2652 KB Output is correct
15 Correct 2 ms 2392 KB Output is correct
16 Correct 2 ms 2648 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 2 ms 2652 KB Output is correct
19 Correct 1 ms 2636 KB Output is correct
20 Correct 1 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 2652 KB Output is correct
24 Correct 1 ms 2652 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct
26 Correct 2 ms 2652 KB Output is correct
27 Correct 1 ms 2716 KB Output is correct
28 Correct 2 ms 2740 KB Output is correct
29 Correct 2 ms 2652 KB Output is correct
30 Correct 2 ms 2768 KB Output is correct
31 Correct 2 ms 2648 KB Output is correct
32 Correct 2 ms 2648 KB Output is correct
33 Correct 2 ms 2652 KB Output is correct
34 Correct 2 ms 2652 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 2 ms 2652 KB Output is correct
37 Correct 1 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 2648 KB Output is correct
41 Correct 1 ms 2652 KB Output is correct
42 Correct 2 ms 2652 KB Output is correct
43 Correct 2 ms 2652 KB Output is correct
44 Correct 1 ms 2652 KB Output is correct
45 Correct 29 ms 4864 KB Output is correct
46 Correct 17 ms 4700 KB Output is correct
47 Correct 30 ms 4956 KB Output is correct
48 Correct 29 ms 4948 KB Output is correct
49 Correct 16 ms 4700 KB Output is correct
50 Correct 46 ms 5384 KB Output is correct
51 Correct 32 ms 4800 KB Output is correct
52 Correct 17 ms 4696 KB Output is correct
53 Correct 15 ms 4700 KB Output is correct
54 Correct 3 ms 2908 KB Output is correct
55 Correct 45 ms 5332 KB Output is correct
56 Correct 9 ms 4440 KB Output is correct
57 Correct 13 ms 4712 KB Output is correct
58 Correct 16 ms 4444 KB Output is correct
59 Correct 8 ms 4440 KB Output is correct
60 Correct 8 ms 4440 KB Output is correct
61 Correct 16 ms 4440 KB Output is correct
62 Correct 11 ms 4444 KB Output is correct
63 Correct 20 ms 4636 KB Output is correct
64 Correct 8 ms 4444 KB Output is correct
65 Correct 26 ms 4732 KB Output is correct
66 Correct 12 ms 4444 KB Output is correct
67 Correct 23 ms 4572 KB Output is correct
68 Correct 23 ms 4700 KB Output is correct
69 Correct 24 ms 4700 KB Output is correct
70 Correct 12 ms 4440 KB Output is correct
71 Correct 23 ms 4700 KB Output is correct
72 Correct 21 ms 4700 KB Output is correct
73 Correct 28 ms 4700 KB Output is correct
74 Correct 11 ms 4444 KB Output is correct
75 Correct 10 ms 3576 KB Output is correct
76 Correct 20 ms 4700 KB Output is correct
77 Correct 27 ms 4700 KB Output is correct
78 Correct 13 ms 3676 KB Output is correct
79 Correct 11 ms 3416 KB Output is correct
80 Correct 5 ms 3160 KB Output is correct
81 Correct 13 ms 3676 KB Output is correct
82 Correct 19 ms 4532 KB Output is correct
83 Correct 5 ms 3164 KB Output is correct
84 Correct 19 ms 4444 KB Output is correct