답안 #1114240

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1114240	2024-11-18T12:11:49 Z	Dan4Life	Mergers (JOI19_mergers)	C++17	48 / 100	3000 ms	77640 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)
using ar2 = array<int,2>;
const int N = (int)5e5+10;
int n, k;
vector<int> adj[N];
int p[N], sz[N];
int a[N], tot[N], deg[N];
map<int,int> S[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){
	S[s][a[s]]=1;
	for(auto u : adj[s]){
		if(u==p) continue;
		dfs(u,s);
		if(sz(S[s]) < sz(S[u])) S[s].swap(S[u]);
		for(auto [v,w] : S[u]) S[s][v]+=w;
	}
	int ok = 1;
	for(auto [u,v] : S[s]) ok&=(tot[u]==v);
	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	9 ms	45392 KB	Output is correct
2	Correct	8 ms	45392 KB	Output is correct
3	Correct	9 ms	45392 KB	Output is correct
4	Correct	8 ms	45392 KB	Output is correct
5	Correct	8 ms	45392 KB	Output is correct
6	Correct	9 ms	45392 KB	Output is correct
7	Correct	9 ms	45392 KB	Output is correct
8	Correct	9 ms	45392 KB	Output is correct
9	Correct	8 ms	45304 KB	Output is correct
10	Correct	9 ms	45392 KB	Output is correct
11	Correct	8 ms	45392 KB	Output is correct
12	Correct	8 ms	45392 KB	Output is correct
13	Correct	8 ms	45392 KB	Output is correct
14	Correct	8 ms	45392 KB	Output is correct
15	Correct	8 ms	45392 KB	Output is correct
16	Correct	8 ms	45392 KB	Output is correct
17	Correct	8 ms	45392 KB	Output is correct
18	Correct	9 ms	45480 KB	Output is correct
19	Correct	9 ms	45392 KB	Output is correct
20	Correct	8 ms	45420 KB	Output is correct
21	Correct	9 ms	45392 KB	Output is correct
22	Correct	8 ms	45392 KB	Output is correct
23	Correct	8 ms	45392 KB	Output is correct
24	Correct	8 ms	45404 KB	Output is correct

Subtask #2
24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	45392 KB	Output is correct
2	Correct	8 ms	45392 KB	Output is correct
3	Correct	9 ms	45392 KB	Output is correct
4	Correct	8 ms	45392 KB	Output is correct
5	Correct	8 ms	45392 KB	Output is correct
6	Correct	9 ms	45392 KB	Output is correct
7	Correct	9 ms	45392 KB	Output is correct
8	Correct	9 ms	45392 KB	Output is correct
9	Correct	8 ms	45304 KB	Output is correct
10	Correct	9 ms	45392 KB	Output is correct
11	Correct	8 ms	45392 KB	Output is correct
12	Correct	8 ms	45392 KB	Output is correct
13	Correct	8 ms	45392 KB	Output is correct
14	Correct	8 ms	45392 KB	Output is correct
15	Correct	8 ms	45392 KB	Output is correct
16	Correct	8 ms	45392 KB	Output is correct
17	Correct	8 ms	45392 KB	Output is correct
18	Correct	9 ms	45480 KB	Output is correct
19	Correct	9 ms	45392 KB	Output is correct
20	Correct	8 ms	45420 KB	Output is correct
21	Correct	9 ms	45392 KB	Output is correct
22	Correct	8 ms	45392 KB	Output is correct
23	Correct	8 ms	45392 KB	Output is correct
24	Correct	8 ms	45404 KB	Output is correct
25	Correct	9 ms	43344 KB	Output is correct
26	Correct	10 ms	43856 KB	Output is correct
27	Correct	8 ms	39504 KB	Output is correct
28	Correct	21 ms	41808 KB	Output is correct
29	Correct	11 ms	42064 KB	Output is correct
30	Correct	10 ms	46076 KB	Output is correct
31	Correct	7 ms	39264 KB	Output is correct
32	Correct	24 ms	37844 KB	Output is correct
33	Correct	7 ms	35920 KB	Output is correct
34	Correct	8 ms	37456 KB	Output is correct
35	Correct	11 ms	46160 KB	Output is correct
36	Correct	13 ms	36032 KB	Output is correct
37	Correct	10 ms	36432 KB	Output is correct
38	Correct	10 ms	35920 KB	Output is correct
39	Correct	11 ms	36688 KB	Output is correct
40	Correct	11 ms	36024 KB	Output is correct
41	Correct	8 ms	39672 KB	Output is correct
42	Correct	9 ms	39504 KB	Output is correct
43	Correct	10 ms	39760 KB	Output is correct
44	Correct	8 ms	39248 KB	Output is correct
45	Correct	15 ms	39760 KB	Output is correct
46	Correct	12 ms	45904 KB	Output is correct
47	Correct	8 ms	43344 KB	Output is correct
48	Correct	10 ms	37456 KB	Output is correct
49	Correct	13 ms	37496 KB	Output is correct
50	Correct	17 ms	36432 KB	Output is correct
51	Correct	10 ms	45648 KB	Output is correct
52	Correct	9 ms	37456 KB	Output is correct
53	Correct	14 ms	36180 KB	Output is correct
54	Correct	15 ms	36432 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	45392 KB	Output is correct
2	Correct	8 ms	45392 KB	Output is correct
3	Correct	9 ms	45392 KB	Output is correct
4	Correct	8 ms	45392 KB	Output is correct
5	Correct	8 ms	45392 KB	Output is correct
6	Correct	9 ms	45392 KB	Output is correct
7	Correct	9 ms	45392 KB	Output is correct
8	Correct	9 ms	45392 KB	Output is correct
9	Correct	8 ms	45304 KB	Output is correct
10	Correct	9 ms	45392 KB	Output is correct
11	Correct	8 ms	45392 KB	Output is correct
12	Correct	8 ms	45392 KB	Output is correct
13	Correct	8 ms	45392 KB	Output is correct
14	Correct	8 ms	45392 KB	Output is correct
15	Correct	8 ms	45392 KB	Output is correct
16	Correct	8 ms	45392 KB	Output is correct
17	Correct	8 ms	45392 KB	Output is correct
18	Correct	9 ms	45480 KB	Output is correct
19	Correct	9 ms	45392 KB	Output is correct
20	Correct	8 ms	45420 KB	Output is correct
21	Correct	9 ms	45392 KB	Output is correct
22	Correct	8 ms	45392 KB	Output is correct
23	Correct	8 ms	45392 KB	Output is correct
24	Correct	8 ms	45404 KB	Output is correct
25	Correct	11 ms	35920 KB	Output is correct
26	Correct	65 ms	45248 KB	Output is correct
27	Correct	96 ms	51792 KB	Output is correct
28	Correct	12 ms	36176 KB	Output is correct
29	Correct	8 ms	41296 KB	Output is correct
30	Correct	8 ms	43432 KB	Output is correct
31	Correct	61 ms	51300 KB	Output is correct
32	Correct	9 ms	45648 KB	Output is correct
33	Correct	99 ms	63308 KB	Output is correct
34	Correct	98 ms	58696 KB	Output is correct
35	Correct	10 ms	45540 KB	Output is correct
36	Correct	72 ms	54444 KB	Output is correct
37	Correct	8 ms	39504 KB	Output is correct
38	Correct	9 ms	43600 KB	Output is correct
39	Correct	57 ms	45368 KB	Output is correct
40	Correct	10 ms	39760 KB	Output is correct
41	Correct	68 ms	48052 KB	Output is correct
42	Correct	77 ms	56648 KB	Output is correct
43	Correct	9 ms	45392 KB	Output is correct
44	Correct	88 ms	63824 KB	Output is correct
45	Correct	84 ms	59572 KB	Output is correct
46	Correct	9 ms	45648 KB	Output is correct
47	Correct	10 ms	45904 KB	Output is correct

Subtask #4
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	62 ms	53440 KB	Output is correct
2	Correct	103 ms	58260 KB	Output is correct
3	Correct	11 ms	46076 KB	Output is correct
4	Correct	9 ms	45648 KB	Output is correct
5	Correct	8 ms	45392 KB	Output is correct
6	Correct	8 ms	45392 KB	Output is correct
7	Correct	10 ms	45648 KB	Output is correct
8	Correct	146 ms	66216 KB	Output is correct
9	Correct	10 ms	45648 KB	Output is correct
10	Correct	69 ms	53496 KB	Output is correct
11	Correct	9 ms	45392 KB	Output is correct
12	Correct	66 ms	53320 KB	Output is correct
13	Correct	141 ms	65096 KB	Output is correct
14	Correct	200 ms	77640 KB	Output is correct
15	Correct	56 ms	53568 KB	Output is correct
16	Correct	10 ms	45648 KB	Output is correct
17	Correct	9 ms	45392 KB	Output is correct
18	Correct	112 ms	58688 KB	Output is correct
19	Execution timed out	3061 ms	56948 KB	Time limit exceeded
20	Halted	0 ms	0 KB	-

Subtask #5
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	45392 KB	Output is correct
2	Correct	8 ms	45392 KB	Output is correct
3	Correct	9 ms	45392 KB	Output is correct
4	Correct	8 ms	45392 KB	Output is correct
5	Correct	8 ms	45392 KB	Output is correct
6	Correct	9 ms	45392 KB	Output is correct
7	Correct	9 ms	45392 KB	Output is correct
8	Correct	9 ms	45392 KB	Output is correct
9	Correct	8 ms	45304 KB	Output is correct
10	Correct	9 ms	45392 KB	Output is correct
11	Correct	8 ms	45392 KB	Output is correct
12	Correct	8 ms	45392 KB	Output is correct
13	Correct	8 ms	45392 KB	Output is correct
14	Correct	8 ms	45392 KB	Output is correct
15	Correct	8 ms	45392 KB	Output is correct
16	Correct	8 ms	45392 KB	Output is correct
17	Correct	8 ms	45392 KB	Output is correct
18	Correct	9 ms	45480 KB	Output is correct
19	Correct	9 ms	45392 KB	Output is correct
20	Correct	8 ms	45420 KB	Output is correct
21	Correct	9 ms	45392 KB	Output is correct
22	Correct	8 ms	45392 KB	Output is correct
23	Correct	8 ms	45392 KB	Output is correct
24	Correct	8 ms	45404 KB	Output is correct
25	Correct	9 ms	43344 KB	Output is correct
26	Correct	10 ms	43856 KB	Output is correct
27	Correct	8 ms	39504 KB	Output is correct
28	Correct	21 ms	41808 KB	Output is correct
29	Correct	11 ms	42064 KB	Output is correct
30	Correct	10 ms	46076 KB	Output is correct
31	Correct	7 ms	39264 KB	Output is correct
32	Correct	24 ms	37844 KB	Output is correct
33	Correct	7 ms	35920 KB	Output is correct
34	Correct	8 ms	37456 KB	Output is correct
35	Correct	11 ms	46160 KB	Output is correct
36	Correct	13 ms	36032 KB	Output is correct
37	Correct	10 ms	36432 KB	Output is correct
38	Correct	10 ms	35920 KB	Output is correct
39	Correct	11 ms	36688 KB	Output is correct
40	Correct	11 ms	36024 KB	Output is correct
41	Correct	8 ms	39672 KB	Output is correct
42	Correct	9 ms	39504 KB	Output is correct
43	Correct	10 ms	39760 KB	Output is correct
44	Correct	8 ms	39248 KB	Output is correct
45	Correct	15 ms	39760 KB	Output is correct
46	Correct	12 ms	45904 KB	Output is correct
47	Correct	8 ms	43344 KB	Output is correct
48	Correct	10 ms	37456 KB	Output is correct
49	Correct	13 ms	37496 KB	Output is correct
50	Correct	17 ms	36432 KB	Output is correct
51	Correct	10 ms	45648 KB	Output is correct
52	Correct	9 ms	37456 KB	Output is correct
53	Correct	14 ms	36180 KB	Output is correct
54	Correct	15 ms	36432 KB	Output is correct
55	Correct	11 ms	35920 KB	Output is correct
56	Correct	65 ms	45248 KB	Output is correct
57	Correct	96 ms	51792 KB	Output is correct
58	Correct	12 ms	36176 KB	Output is correct
59	Correct	8 ms	41296 KB	Output is correct
60	Correct	8 ms	43432 KB	Output is correct
61	Correct	61 ms	51300 KB	Output is correct
62	Correct	9 ms	45648 KB	Output is correct
63	Correct	99 ms	63308 KB	Output is correct
64	Correct	98 ms	58696 KB	Output is correct
65	Correct	10 ms	45540 KB	Output is correct
66	Correct	72 ms	54444 KB	Output is correct
67	Correct	8 ms	39504 KB	Output is correct
68	Correct	9 ms	43600 KB	Output is correct
69	Correct	57 ms	45368 KB	Output is correct
70	Correct	10 ms	39760 KB	Output is correct
71	Correct	68 ms	48052 KB	Output is correct
72	Correct	77 ms	56648 KB	Output is correct
73	Correct	9 ms	45392 KB	Output is correct
74	Correct	88 ms	63824 KB	Output is correct
75	Correct	84 ms	59572 KB	Output is correct
76	Correct	9 ms	45648 KB	Output is correct
77	Correct	10 ms	45904 KB	Output is correct
78	Correct	62 ms	53440 KB	Output is correct
79	Correct	103 ms	58260 KB	Output is correct
80	Correct	11 ms	46076 KB	Output is correct
81	Correct	9 ms	45648 KB	Output is correct
82	Correct	8 ms	45392 KB	Output is correct
83	Correct	8 ms	45392 KB	Output is correct
84	Correct	10 ms	45648 KB	Output is correct
85	Correct	146 ms	66216 KB	Output is correct
86	Correct	10 ms	45648 KB	Output is correct
87	Correct	69 ms	53496 KB	Output is correct
88	Correct	9 ms	45392 KB	Output is correct
89	Correct	66 ms	53320 KB	Output is correct
90	Correct	141 ms	65096 KB	Output is correct
91	Correct	200 ms	77640 KB	Output is correct
92	Correct	56 ms	53568 KB	Output is correct
93	Correct	10 ms	45648 KB	Output is correct
94	Correct	9 ms	45392 KB	Output is correct
95	Correct	112 ms	58688 KB	Output is correct
96	Execution timed out	3061 ms	56948 KB	Time limit exceeded
97	Halted	0 ms	0 KB	-

답안 #1114240

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 24.0 / 24.0

Subtask #3 14.0 / 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
14.0 / 14.0

Subtask #4
0 / 22.0

Subtask #5
0 / 30.0