답안 #1114226

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1114226	2024-11-18T11:54:24 Z	Dan4Life	Mergers (JOI19_mergers)	C++17	34 / 100	3000 ms	34704 KB

mergers

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
#define int long long
using ar2 = array<int,2>;
const int N = (int)2e5+10;
const int LINF = (int)1e18;
int n, k;
vector<int> adj[N];
int p[N], sz[N];
int a[N], tot[N], cnt[N], deg[N];
vector<int> v[N];

int findSet(int i){return i==p[i]?i:p[i]=findSet(p[i]);}
void unionSet(int i, int j){
	int x = findSet(i), y = findSet(j);
	if(x==y) return;
	if(sz[x]<sz[y])swap(x,y);
	p[y] = x, sz[x]+=sz[y];
}

void dfs(int s, int p){
	v[s].pb(a[s]);
	for(auto u : adj[s]){
		if(u==p) continue;
		dfs(u,s);
		if(sz(v[s]) < sz(v[u])) v[s].swap(v[u]);
		for(auto w : v[u]) v[s].pb(w);
	}
	int ok = 1;
	for(auto u : v[s]) cnt[u]++;
	for(auto u : v[s]) ok&=(cnt[u]==tot[u]);
	for(auto u : v[s]) cnt[u]--;
	if(p and !ok) unionSet(s,p);
}

int32_t main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n >> k;
	for(int i = 1; i <= n; i++) p[i]=i,sz[i]=1;
	for(int i = 1; i < n; i++){
		int a, b; cin >> a >> b;
		adj[a].pb(b); adj[b].pb(a);
	}
	for(int i = 1; i <= n; i++)
		cin >> a[i], tot[a[i]]++;
	dfs(1,0);
	for(int i = 1; i <= n; i++)
		for(int j : adj[i])
			if(findSet(i)!=findSet(j)) 
				deg[findSet(i)]++;
	int cnt = 1;
	for(int i = 1; i <= n; i++) cnt+=(deg[i]==1);
	cout << cnt/2 << "\n";
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	19024 KB	Output is correct
2	Correct	3 ms	19132 KB	Output is correct
3	Correct	4 ms	19192 KB	Output is correct
4	Correct	3 ms	19024 KB	Output is correct
5	Correct	3 ms	19024 KB	Output is correct
6	Correct	3 ms	19024 KB	Output is correct
7	Correct	4 ms	19200 KB	Output is correct
8	Correct	4 ms	19024 KB	Output is correct
9	Correct	3 ms	19024 KB	Output is correct
10	Correct	3 ms	19024 KB	Output is correct
11	Correct	3 ms	19240 KB	Output is correct
12	Correct	3 ms	19024 KB	Output is correct
13	Correct	3 ms	19244 KB	Output is correct
14	Correct	3 ms	19024 KB	Output is correct
15	Correct	3 ms	19024 KB	Output is correct
16	Correct	3 ms	19024 KB	Output is correct
17	Correct	3 ms	19024 KB	Output is correct
18	Correct	3 ms	19024 KB	Output is correct
19	Correct	4 ms	19024 KB	Output is correct
20	Correct	3 ms	19024 KB	Output is correct
21	Correct	3 ms	19024 KB	Output is correct
22	Correct	3 ms	19024 KB	Output is correct
23	Correct	4 ms	19024 KB	Output is correct
24	Correct	3 ms	19024 KB	Output is correct

Subtask #2
24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	19024 KB	Output is correct
2	Correct	3 ms	19132 KB	Output is correct
3	Correct	4 ms	19192 KB	Output is correct
4	Correct	3 ms	19024 KB	Output is correct
5	Correct	3 ms	19024 KB	Output is correct
6	Correct	3 ms	19024 KB	Output is correct
7	Correct	4 ms	19200 KB	Output is correct
8	Correct	4 ms	19024 KB	Output is correct
9	Correct	3 ms	19024 KB	Output is correct
10	Correct	3 ms	19024 KB	Output is correct
11	Correct	3 ms	19240 KB	Output is correct
12	Correct	3 ms	19024 KB	Output is correct
13	Correct	3 ms	19244 KB	Output is correct
14	Correct	3 ms	19024 KB	Output is correct
15	Correct	3 ms	19024 KB	Output is correct
16	Correct	3 ms	19024 KB	Output is correct
17	Correct	3 ms	19024 KB	Output is correct
18	Correct	3 ms	19024 KB	Output is correct
19	Correct	4 ms	19024 KB	Output is correct
20	Correct	3 ms	19024 KB	Output is correct
21	Correct	3 ms	19024 KB	Output is correct
22	Correct	3 ms	19024 KB	Output is correct
23	Correct	4 ms	19024 KB	Output is correct
24	Correct	3 ms	19024 KB	Output is correct
25	Correct	3 ms	19024 KB	Output is correct
26	Correct	4 ms	19536 KB	Output is correct
27	Correct	6 ms	19536 KB	Output is correct
28	Correct	8 ms	19632 KB	Output is correct
29	Correct	4 ms	19536 KB	Output is correct
30	Correct	4 ms	19460 KB	Output is correct
31	Correct	3 ms	19024 KB	Output is correct
32	Correct	9 ms	19644 KB	Output is correct
33	Correct	3 ms	19024 KB	Output is correct
34	Correct	4 ms	19280 KB	Output is correct
35	Correct	5 ms	19536 KB	Output is correct
36	Correct	5 ms	19536 KB	Output is correct
37	Correct	4 ms	19536 KB	Output is correct
38	Correct	3 ms	19024 KB	Output is correct
39	Correct	4 ms	19536 KB	Output is correct
40	Correct	4 ms	19536 KB	Output is correct
41	Correct	4 ms	19536 KB	Output is correct
42	Correct	5 ms	19332 KB	Output is correct
43	Correct	11 ms	19536 KB	Output is correct
44	Correct	3 ms	19024 KB	Output is correct
45	Correct	7 ms	19536 KB	Output is correct
46	Correct	5 ms	19536 KB	Output is correct
47	Correct	4 ms	19024 KB	Output is correct
48	Correct	5 ms	19456 KB	Output is correct
49	Correct	4 ms	19280 KB	Output is correct
50	Correct	6 ms	19704 KB	Output is correct
51	Correct	4 ms	19588 KB	Output is correct
52	Correct	5 ms	19280 KB	Output is correct
53	Correct	5 ms	19280 KB	Output is correct
54	Correct	5 ms	19536 KB	Output is correct

Subtask #3
0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	19024 KB	Output is correct
2	Correct	3 ms	19132 KB	Output is correct
3	Correct	4 ms	19192 KB	Output is correct
4	Correct	3 ms	19024 KB	Output is correct
5	Correct	3 ms	19024 KB	Output is correct
6	Correct	3 ms	19024 KB	Output is correct
7	Correct	4 ms	19200 KB	Output is correct
8	Correct	4 ms	19024 KB	Output is correct
9	Correct	3 ms	19024 KB	Output is correct
10	Correct	3 ms	19024 KB	Output is correct
11	Correct	3 ms	19240 KB	Output is correct
12	Correct	3 ms	19024 KB	Output is correct
13	Correct	3 ms	19244 KB	Output is correct
14	Correct	3 ms	19024 KB	Output is correct
15	Correct	3 ms	19024 KB	Output is correct
16	Correct	3 ms	19024 KB	Output is correct
17	Correct	3 ms	19024 KB	Output is correct
18	Correct	3 ms	19024 KB	Output is correct
19	Correct	4 ms	19024 KB	Output is correct
20	Correct	3 ms	19024 KB	Output is correct
21	Correct	3 ms	19024 KB	Output is correct
22	Correct	3 ms	19024 KB	Output is correct
23	Correct	4 ms	19024 KB	Output is correct
24	Correct	3 ms	19024 KB	Output is correct
25	Correct	3 ms	19024 KB	Output is correct
26	Correct	43 ms	27076 KB	Output is correct
27	Correct	57 ms	30400 KB	Output is correct
28	Correct	6 ms	19536 KB	Output is correct
29	Correct	4 ms	19024 KB	Output is correct
30	Correct	3 ms	19024 KB	Output is correct
31	Correct	79 ms	30196 KB	Output is correct
32	Correct	5 ms	19280 KB	Output is correct
33	Execution timed out	3101 ms	34704 KB	Time limit exceeded
34	Halted	0 ms	0 KB	-

Subtask #4
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	38 ms	27076 KB	Output is correct
2	Correct	45 ms	27072 KB	Output is correct
3	Correct	5 ms	19536 KB	Output is correct
4	Correct	6 ms	19544 KB	Output is correct
5	Correct	3 ms	19024 KB	Output is correct
6	Correct	4 ms	19024 KB	Output is correct
7	Correct	7 ms	19280 KB	Output is correct
8	Correct	94 ms	30176 KB	Output is correct
9	Correct	5 ms	19536 KB	Output is correct
10	Correct	101 ms	30336 KB	Output is correct
11	Correct	4 ms	19024 KB	Output is correct
12	Correct	227 ms	29384 KB	Output is correct
13	Correct	124 ms	30448 KB	Output is correct
14	Correct	66 ms	30656 KB	Output is correct
15	Correct	44 ms	27188 KB	Output is correct
16	Correct	4 ms	19280 KB	Output is correct
17	Correct	4 ms	19024 KB	Output is correct
18	Correct	46 ms	27188 KB	Output is correct
19	Execution timed out	3048 ms	28856 KB	Time limit exceeded
20	Halted	0 ms	0 KB	-

Subtask #5
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	19024 KB	Output is correct
2	Correct	3 ms	19132 KB	Output is correct
3	Correct	4 ms	19192 KB	Output is correct
4	Correct	3 ms	19024 KB	Output is correct
5	Correct	3 ms	19024 KB	Output is correct
6	Correct	3 ms	19024 KB	Output is correct
7	Correct	4 ms	19200 KB	Output is correct
8	Correct	4 ms	19024 KB	Output is correct
9	Correct	3 ms	19024 KB	Output is correct
10	Correct	3 ms	19024 KB	Output is correct
11	Correct	3 ms	19240 KB	Output is correct
12	Correct	3 ms	19024 KB	Output is correct
13	Correct	3 ms	19244 KB	Output is correct
14	Correct	3 ms	19024 KB	Output is correct
15	Correct	3 ms	19024 KB	Output is correct
16	Correct	3 ms	19024 KB	Output is correct
17	Correct	3 ms	19024 KB	Output is correct
18	Correct	3 ms	19024 KB	Output is correct
19	Correct	4 ms	19024 KB	Output is correct
20	Correct	3 ms	19024 KB	Output is correct
21	Correct	3 ms	19024 KB	Output is correct
22	Correct	3 ms	19024 KB	Output is correct
23	Correct	4 ms	19024 KB	Output is correct
24	Correct	3 ms	19024 KB	Output is correct
25	Correct	3 ms	19024 KB	Output is correct
26	Correct	4 ms	19536 KB	Output is correct
27	Correct	6 ms	19536 KB	Output is correct
28	Correct	8 ms	19632 KB	Output is correct
29	Correct	4 ms	19536 KB	Output is correct
30	Correct	4 ms	19460 KB	Output is correct
31	Correct	3 ms	19024 KB	Output is correct
32	Correct	9 ms	19644 KB	Output is correct
33	Correct	3 ms	19024 KB	Output is correct
34	Correct	4 ms	19280 KB	Output is correct
35	Correct	5 ms	19536 KB	Output is correct
36	Correct	5 ms	19536 KB	Output is correct
37	Correct	4 ms	19536 KB	Output is correct
38	Correct	3 ms	19024 KB	Output is correct
39	Correct	4 ms	19536 KB	Output is correct
40	Correct	4 ms	19536 KB	Output is correct
41	Correct	4 ms	19536 KB	Output is correct
42	Correct	5 ms	19332 KB	Output is correct
43	Correct	11 ms	19536 KB	Output is correct
44	Correct	3 ms	19024 KB	Output is correct
45	Correct	7 ms	19536 KB	Output is correct
46	Correct	5 ms	19536 KB	Output is correct
47	Correct	4 ms	19024 KB	Output is correct
48	Correct	5 ms	19456 KB	Output is correct
49	Correct	4 ms	19280 KB	Output is correct
50	Correct	6 ms	19704 KB	Output is correct
51	Correct	4 ms	19588 KB	Output is correct
52	Correct	5 ms	19280 KB	Output is correct
53	Correct	5 ms	19280 KB	Output is correct
54	Correct	5 ms	19536 KB	Output is correct
55	Correct	3 ms	19024 KB	Output is correct
56	Correct	43 ms	27076 KB	Output is correct
57	Correct	57 ms	30400 KB	Output is correct
58	Correct	6 ms	19536 KB	Output is correct
59	Correct	4 ms	19024 KB	Output is correct
60	Correct	3 ms	19024 KB	Output is correct
61	Correct	79 ms	30196 KB	Output is correct
62	Correct	5 ms	19280 KB	Output is correct
63	Execution timed out	3101 ms	34704 KB	Time limit exceeded
64	Halted	0 ms	0 KB	-

답안 #1114226

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