Submission #772747

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
772747	2023-07-04T10:54:42 Z	Mohammad_Parsa	Mergers (JOI19_mergers)	C++17	34 / 100	3000 ms	31272 KB

mergers

/* in the name of allah */
#include<bits/stdc++.h>
using namespace std;

#define endl '\n'
#define pb push_back
#define F first
#define S second
#define mk make_pair
typedef long long ll;

const int N=5e5+7;
int n,k,st[N],fn[N],t,s[N],mark[N],sum[N],ans;
vector<int>vec[N],ver[N];

void dfs1(int v=1,int p=0){
	st[v]=t++;
	for(auto u:vec[v]){
		if(u!=p) dfs1(u,v);
	}
	fn[v]=t++;
}

void dfs2(int v=1,int p=0){
	sum[v]=mark[v];
	for(auto u:vec[v]){
		if(u==p)continue;
		mark[u]=1;
		for(int i=1;i<=k;i++){
			int x=0,y=0;
			for(auto w:ver[i]){
				if(st[w]>=st[u] && fn[w]<=fn[u])x++;
				else y++;
			}
			if(x&&y)mark[u]=0;
		}
		dfs2(u,v);
		sum[v]+=sum[u];
	}
}

void dfs3(int v=1,int p=0){
	if(mark[v] && (sum[v]==1 || sum[v]==sum[1]))ans++;
	for(auto u:vec[v]){
		if(u==p)continue;
		dfs3(u,v);
	}
}

int main(){
	ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	cin>>n>>k;
	int u,v;
	for(int i=0;i<n-1;i++){
		cin>>u>>v;
		vec[u].pb(v);
		vec[v].pb(u);
	}
	for(int i=1;i<=n;i++){
		cin>>s[i];
		ver[s[i]].pb(i);
	}
	dfs1();
	dfs2();
	dfs3();
	cout<<ans/2+(ans%2==1);
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	13 ms	23812 KB	Output is correct
2	Correct	12 ms	23816 KB	Output is correct
3	Correct	12 ms	23784 KB	Output is correct
4	Correct	11 ms	23808 KB	Output is correct
5	Correct	13 ms	23792 KB	Output is correct
6	Correct	12 ms	23764 KB	Output is correct
7	Correct	12 ms	23812 KB	Output is correct
8	Correct	13 ms	23808 KB	Output is correct
9	Correct	12 ms	23808 KB	Output is correct
10	Correct	12 ms	23764 KB	Output is correct
11	Correct	11 ms	23816 KB	Output is correct
12	Correct	11 ms	23752 KB	Output is correct
13	Correct	12 ms	23736 KB	Output is correct
14	Correct	11 ms	23764 KB	Output is correct
15	Correct	11 ms	23808 KB	Output is correct
16	Correct	11 ms	23816 KB	Output is correct
17	Correct	13 ms	23784 KB	Output is correct
18	Correct	12 ms	23764 KB	Output is correct
19	Correct	12 ms	23764 KB	Output is correct
20	Correct	11 ms	23764 KB	Output is correct
21	Correct	12 ms	23808 KB	Output is correct
22	Correct	11 ms	23812 KB	Output is correct
23	Correct	13 ms	23816 KB	Output is correct
24	Correct	12 ms	23764 KB	Output is correct

Subtask #2
24.0 / 24.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	13 ms	23812 KB	Output is correct
2	Correct	12 ms	23816 KB	Output is correct
3	Correct	12 ms	23784 KB	Output is correct
4	Correct	11 ms	23808 KB	Output is correct
5	Correct	13 ms	23792 KB	Output is correct
6	Correct	12 ms	23764 KB	Output is correct
7	Correct	12 ms	23812 KB	Output is correct
8	Correct	13 ms	23808 KB	Output is correct
9	Correct	12 ms	23808 KB	Output is correct
10	Correct	12 ms	23764 KB	Output is correct
11	Correct	11 ms	23816 KB	Output is correct
12	Correct	11 ms	23752 KB	Output is correct
13	Correct	12 ms	23736 KB	Output is correct
14	Correct	11 ms	23764 KB	Output is correct
15	Correct	11 ms	23808 KB	Output is correct
16	Correct	11 ms	23816 KB	Output is correct
17	Correct	13 ms	23784 KB	Output is correct
18	Correct	12 ms	23764 KB	Output is correct
19	Correct	12 ms	23764 KB	Output is correct
20	Correct	11 ms	23764 KB	Output is correct
21	Correct	12 ms	23808 KB	Output is correct
22	Correct	11 ms	23812 KB	Output is correct
23	Correct	13 ms	23816 KB	Output is correct
24	Correct	12 ms	23764 KB	Output is correct
25	Correct	11 ms	23764 KB	Output is correct
26	Correct	34 ms	24020 KB	Output is correct
27	Correct	21 ms	24052 KB	Output is correct
28	Correct	41 ms	24188 KB	Output is correct
29	Correct	40 ms	24120 KB	Output is correct
30	Correct	26 ms	24064 KB	Output is correct
31	Correct	11 ms	23764 KB	Output is correct
32	Correct	40 ms	24276 KB	Output is correct
33	Correct	12 ms	23764 KB	Output is correct
34	Correct	26 ms	24056 KB	Output is correct
35	Correct	40 ms	24068 KB	Output is correct
36	Correct	22 ms	24040 KB	Output is correct
37	Correct	35 ms	24048 KB	Output is correct
38	Correct	11 ms	23764 KB	Output is correct
39	Correct	37 ms	24020 KB	Output is correct
40	Correct	35 ms	24044 KB	Output is correct
41	Correct	24 ms	24028 KB	Output is correct
42	Correct	37 ms	24084 KB	Output is correct
43	Correct	30 ms	24252 KB	Output is correct
44	Correct	12 ms	23764 KB	Output is correct
45	Correct	38 ms	24152 KB	Output is correct
46	Correct	35 ms	24020 KB	Output is correct
47	Correct	11 ms	23764 KB	Output is correct
48	Correct	28 ms	24068 KB	Output is correct
49	Correct	37 ms	24020 KB	Output is correct
50	Correct	56 ms	24172 KB	Output is correct
51	Correct	28 ms	24020 KB	Output is correct
52	Correct	27 ms	24012 KB	Output is correct
53	Correct	36 ms	24012 KB	Output is correct
54	Correct	25 ms	24064 KB	Output is correct

Subtask #3
0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	13 ms	23812 KB	Output is correct
2	Correct	12 ms	23816 KB	Output is correct
3	Correct	12 ms	23784 KB	Output is correct
4	Correct	11 ms	23808 KB	Output is correct
5	Correct	13 ms	23792 KB	Output is correct
6	Correct	12 ms	23764 KB	Output is correct
7	Correct	12 ms	23812 KB	Output is correct
8	Correct	13 ms	23808 KB	Output is correct
9	Correct	12 ms	23808 KB	Output is correct
10	Correct	12 ms	23764 KB	Output is correct
11	Correct	11 ms	23816 KB	Output is correct
12	Correct	11 ms	23752 KB	Output is correct
13	Correct	12 ms	23736 KB	Output is correct
14	Correct	11 ms	23764 KB	Output is correct
15	Correct	11 ms	23808 KB	Output is correct
16	Correct	11 ms	23816 KB	Output is correct
17	Correct	13 ms	23784 KB	Output is correct
18	Correct	12 ms	23764 KB	Output is correct
19	Correct	12 ms	23764 KB	Output is correct
20	Correct	11 ms	23764 KB	Output is correct
21	Correct	12 ms	23808 KB	Output is correct
22	Correct	11 ms	23812 KB	Output is correct
23	Correct	13 ms	23816 KB	Output is correct
24	Correct	12 ms	23764 KB	Output is correct
25	Correct	10 ms	23784 KB	Output is correct
26	Execution timed out	3053 ms	31236 KB	Time limit exceeded
27	Halted	0 ms	0 KB	-

Subtask #4
0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	3079 ms	31272 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	13 ms	23812 KB	Output is correct
2	Correct	12 ms	23816 KB	Output is correct
3	Correct	12 ms	23784 KB	Output is correct
4	Correct	11 ms	23808 KB	Output is correct
5	Correct	13 ms	23792 KB	Output is correct
6	Correct	12 ms	23764 KB	Output is correct
7	Correct	12 ms	23812 KB	Output is correct
8	Correct	13 ms	23808 KB	Output is correct
9	Correct	12 ms	23808 KB	Output is correct
10	Correct	12 ms	23764 KB	Output is correct
11	Correct	11 ms	23816 KB	Output is correct
12	Correct	11 ms	23752 KB	Output is correct
13	Correct	12 ms	23736 KB	Output is correct
14	Correct	11 ms	23764 KB	Output is correct
15	Correct	11 ms	23808 KB	Output is correct
16	Correct	11 ms	23816 KB	Output is correct
17	Correct	13 ms	23784 KB	Output is correct
18	Correct	12 ms	23764 KB	Output is correct
19	Correct	12 ms	23764 KB	Output is correct
20	Correct	11 ms	23764 KB	Output is correct
21	Correct	12 ms	23808 KB	Output is correct
22	Correct	11 ms	23812 KB	Output is correct
23	Correct	13 ms	23816 KB	Output is correct
24	Correct	12 ms	23764 KB	Output is correct
25	Correct	11 ms	23764 KB	Output is correct
26	Correct	34 ms	24020 KB	Output is correct
27	Correct	21 ms	24052 KB	Output is correct
28	Correct	41 ms	24188 KB	Output is correct
29	Correct	40 ms	24120 KB	Output is correct
30	Correct	26 ms	24064 KB	Output is correct
31	Correct	11 ms	23764 KB	Output is correct
32	Correct	40 ms	24276 KB	Output is correct
33	Correct	12 ms	23764 KB	Output is correct
34	Correct	26 ms	24056 KB	Output is correct
35	Correct	40 ms	24068 KB	Output is correct
36	Correct	22 ms	24040 KB	Output is correct
37	Correct	35 ms	24048 KB	Output is correct
38	Correct	11 ms	23764 KB	Output is correct
39	Correct	37 ms	24020 KB	Output is correct
40	Correct	35 ms	24044 KB	Output is correct
41	Correct	24 ms	24028 KB	Output is correct
42	Correct	37 ms	24084 KB	Output is correct
43	Correct	30 ms	24252 KB	Output is correct
44	Correct	12 ms	23764 KB	Output is correct
45	Correct	38 ms	24152 KB	Output is correct
46	Correct	35 ms	24020 KB	Output is correct
47	Correct	11 ms	23764 KB	Output is correct
48	Correct	28 ms	24068 KB	Output is correct
49	Correct	37 ms	24020 KB	Output is correct
50	Correct	56 ms	24172 KB	Output is correct
51	Correct	28 ms	24020 KB	Output is correct
52	Correct	27 ms	24012 KB	Output is correct
53	Correct	36 ms	24012 KB	Output is correct
54	Correct	25 ms	24064 KB	Output is correct
55	Correct	10 ms	23784 KB	Output is correct
56	Execution timed out	3053 ms	31236 KB	Time limit exceeded
57	Halted	0 ms	0 KB	-

Submission #772747

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 24.0 / 24.0

Subtask #3 0 / 14.0

Subtask #4 0 / 22.0

Subtask #5 0 / 30.0

Subtask #1
10.0 / 10.0

Subtask #2
24.0 / 24.0

Subtask #3
0 / 14.0

Subtask #4
0 / 22.0

Subtask #5
0 / 30.0