답안 #1114225

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1114225	2024-11-18T11:50:31 Z	Dan4Life	Mergers (JOI19_mergers)	C++17	48 / 100	3000 ms	66632 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], deg[N];
set<ar2> 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].insert({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]){
			auto itr = S[s].lower_bound({v,-1});
			int cnt = 0;
			if(itr!=end(S[s]) and (*itr)[0]==v)
				cnt = ((*itr)[1]), S[s].erase(itr);
			S[s].insert({v,cnt+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	4 ms	22352 KB	Output is correct
2	Correct	4 ms	22352 KB	Output is correct
3	Correct	6 ms	22372 KB	Output is correct
4	Correct	5 ms	22352 KB	Output is correct
5	Correct	4 ms	22332 KB	Output is correct
6	Correct	4 ms	22336 KB	Output is correct
7	Correct	5 ms	22380 KB	Output is correct
8	Correct	4 ms	22352 KB	Output is correct
9	Correct	5 ms	22352 KB	Output is correct
10	Correct	5 ms	22352 KB	Output is correct
11	Correct	5 ms	22352 KB	Output is correct
12	Correct	4 ms	22352 KB	Output is correct
13	Correct	4 ms	22352 KB	Output is correct
14	Correct	4 ms	22352 KB	Output is correct
15	Correct	4 ms	22352 KB	Output is correct
16	Correct	4 ms	22352 KB	Output is correct
17	Correct	4 ms	22352 KB	Output is correct
18	Correct	4 ms	22352 KB	Output is correct
19	Correct	4 ms	22324 KB	Output is correct
20	Correct	5 ms	22520 KB	Output is correct
21	Correct	4 ms	22352 KB	Output is correct
22	Correct	4 ms	22352 KB	Output is correct
23	Correct	5 ms	22368 KB	Output is correct
24	Correct	4 ms	22364 KB	Output is correct

Subtask #2
24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	22352 KB	Output is correct
2	Correct	4 ms	22352 KB	Output is correct
3	Correct	6 ms	22372 KB	Output is correct
4	Correct	5 ms	22352 KB	Output is correct
5	Correct	4 ms	22332 KB	Output is correct
6	Correct	4 ms	22336 KB	Output is correct
7	Correct	5 ms	22380 KB	Output is correct
8	Correct	4 ms	22352 KB	Output is correct
9	Correct	5 ms	22352 KB	Output is correct
10	Correct	5 ms	22352 KB	Output is correct
11	Correct	5 ms	22352 KB	Output is correct
12	Correct	4 ms	22352 KB	Output is correct
13	Correct	4 ms	22352 KB	Output is correct
14	Correct	4 ms	22352 KB	Output is correct
15	Correct	4 ms	22352 KB	Output is correct
16	Correct	4 ms	22352 KB	Output is correct
17	Correct	4 ms	22352 KB	Output is correct
18	Correct	4 ms	22352 KB	Output is correct
19	Correct	4 ms	22324 KB	Output is correct
20	Correct	5 ms	22520 KB	Output is correct
21	Correct	4 ms	22352 KB	Output is correct
22	Correct	4 ms	22352 KB	Output is correct
23	Correct	5 ms	22368 KB	Output is correct
24	Correct	4 ms	22364 KB	Output is correct
25	Correct	4 ms	22520 KB	Output is correct
26	Correct	9 ms	23120 KB	Output is correct
27	Correct	6 ms	22608 KB	Output is correct
28	Correct	21 ms	23068 KB	Output is correct
29	Correct	9 ms	23376 KB	Output is correct
30	Correct	8 ms	22864 KB	Output is correct
31	Correct	5 ms	22352 KB	Output is correct
32	Correct	25 ms	23120 KB	Output is correct
33	Correct	5 ms	22352 KB	Output is correct
34	Correct	7 ms	22492 KB	Output is correct
35	Correct	9 ms	23376 KB	Output is correct
36	Correct	6 ms	22608 KB	Output is correct
37	Correct	11 ms	23120 KB	Output is correct
38	Correct	5 ms	22352 KB	Output is correct
39	Correct	9 ms	23120 KB	Output is correct
40	Correct	6 ms	22608 KB	Output is correct
41	Correct	6 ms	22608 KB	Output is correct
42	Correct	7 ms	22864 KB	Output is correct
43	Correct	7 ms	23128 KB	Output is correct
44	Correct	4 ms	22352 KB	Output is correct
45	Correct	13 ms	23120 KB	Output is correct
46	Correct	8 ms	22864 KB	Output is correct
47	Correct	5 ms	22352 KB	Output is correct
48	Correct	7 ms	22608 KB	Output is correct
49	Correct	9 ms	22864 KB	Output is correct
50	Correct	16 ms	23116 KB	Output is correct
51	Correct	7 ms	22608 KB	Output is correct
52	Correct	7 ms	22608 KB	Output is correct
53	Correct	7 ms	22608 KB	Output is correct
54	Correct	8 ms	22740 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	22352 KB	Output is correct
2	Correct	4 ms	22352 KB	Output is correct
3	Correct	6 ms	22372 KB	Output is correct
4	Correct	5 ms	22352 KB	Output is correct
5	Correct	4 ms	22332 KB	Output is correct
6	Correct	4 ms	22336 KB	Output is correct
7	Correct	5 ms	22380 KB	Output is correct
8	Correct	4 ms	22352 KB	Output is correct
9	Correct	5 ms	22352 KB	Output is correct
10	Correct	5 ms	22352 KB	Output is correct
11	Correct	5 ms	22352 KB	Output is correct
12	Correct	4 ms	22352 KB	Output is correct
13	Correct	4 ms	22352 KB	Output is correct
14	Correct	4 ms	22352 KB	Output is correct
15	Correct	4 ms	22352 KB	Output is correct
16	Correct	4 ms	22352 KB	Output is correct
17	Correct	4 ms	22352 KB	Output is correct
18	Correct	4 ms	22352 KB	Output is correct
19	Correct	4 ms	22324 KB	Output is correct
20	Correct	5 ms	22520 KB	Output is correct
21	Correct	4 ms	22352 KB	Output is correct
22	Correct	4 ms	22352 KB	Output is correct
23	Correct	5 ms	22368 KB	Output is correct
24	Correct	4 ms	22364 KB	Output is correct
25	Correct	5 ms	22352 KB	Output is correct
26	Correct	70 ms	33756 KB	Output is correct
27	Correct	132 ms	42612 KB	Output is correct
28	Correct	6 ms	22608 KB	Output is correct
29	Correct	5 ms	22352 KB	Output is correct
30	Correct	5 ms	22320 KB	Output is correct
31	Correct	72 ms	33608 KB	Output is correct
32	Correct	6 ms	22608 KB	Output is correct
33	Correct	131 ms	47712 KB	Output is correct
34	Correct	117 ms	40776 KB	Output is correct
35	Correct	6 ms	22608 KB	Output is correct
36	Correct	74 ms	34896 KB	Output is correct
37	Correct	6 ms	22620 KB	Output is correct
38	Correct	6 ms	22608 KB	Output is correct
39	Correct	66 ms	33848 KB	Output is correct
40	Correct	6 ms	23120 KB	Output is correct
41	Correct	68 ms	33608 KB	Output is correct
42	Correct	100 ms	37964 KB	Output is correct
43	Correct	5 ms	22352 KB	Output is correct
44	Correct	87 ms	48088 KB	Output is correct
45	Correct	115 ms	43336 KB	Output is correct
46	Correct	7 ms	22608 KB	Output is correct
47	Correct	7 ms	22864 KB	Output is correct

Subtask #4
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	72 ms	33912 KB	Output is correct
2	Correct	122 ms	40328 KB	Output is correct
3	Correct	11 ms	22988 KB	Output is correct
4	Correct	6 ms	22608 KB	Output is correct
5	Correct	4 ms	22352 KB	Output is correct
6	Correct	4 ms	22352 KB	Output is correct
7	Correct	7 ms	22608 KB	Output is correct
8	Correct	191 ms	51024 KB	Output is correct
9	Correct	6 ms	22608 KB	Output is correct
10	Correct	62 ms	34040 KB	Output is correct
11	Correct	4 ms	22352 KB	Output is correct
12	Correct	61 ms	33612 KB	Output is correct
13	Correct	147 ms	49736 KB	Output is correct
14	Correct	197 ms	66632 KB	Output is correct
15	Correct	81 ms	33856 KB	Output is correct
16	Correct	7 ms	22880 KB	Output is correct
17	Correct	4 ms	22364 KB	Output is correct
18	Correct	118 ms	41532 KB	Output is correct
19	Execution timed out	3072 ms	39188 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	22352 KB	Output is correct
2	Correct	4 ms	22352 KB	Output is correct
3	Correct	6 ms	22372 KB	Output is correct
4	Correct	5 ms	22352 KB	Output is correct
5	Correct	4 ms	22332 KB	Output is correct
6	Correct	4 ms	22336 KB	Output is correct
7	Correct	5 ms	22380 KB	Output is correct
8	Correct	4 ms	22352 KB	Output is correct
9	Correct	5 ms	22352 KB	Output is correct
10	Correct	5 ms	22352 KB	Output is correct
11	Correct	5 ms	22352 KB	Output is correct
12	Correct	4 ms	22352 KB	Output is correct
13	Correct	4 ms	22352 KB	Output is correct
14	Correct	4 ms	22352 KB	Output is correct
15	Correct	4 ms	22352 KB	Output is correct
16	Correct	4 ms	22352 KB	Output is correct
17	Correct	4 ms	22352 KB	Output is correct
18	Correct	4 ms	22352 KB	Output is correct
19	Correct	4 ms	22324 KB	Output is correct
20	Correct	5 ms	22520 KB	Output is correct
21	Correct	4 ms	22352 KB	Output is correct
22	Correct	4 ms	22352 KB	Output is correct
23	Correct	5 ms	22368 KB	Output is correct
24	Correct	4 ms	22364 KB	Output is correct
25	Correct	4 ms	22520 KB	Output is correct
26	Correct	9 ms	23120 KB	Output is correct
27	Correct	6 ms	22608 KB	Output is correct
28	Correct	21 ms	23068 KB	Output is correct
29	Correct	9 ms	23376 KB	Output is correct
30	Correct	8 ms	22864 KB	Output is correct
31	Correct	5 ms	22352 KB	Output is correct
32	Correct	25 ms	23120 KB	Output is correct
33	Correct	5 ms	22352 KB	Output is correct
34	Correct	7 ms	22492 KB	Output is correct
35	Correct	9 ms	23376 KB	Output is correct
36	Correct	6 ms	22608 KB	Output is correct
37	Correct	11 ms	23120 KB	Output is correct
38	Correct	5 ms	22352 KB	Output is correct
39	Correct	9 ms	23120 KB	Output is correct
40	Correct	6 ms	22608 KB	Output is correct
41	Correct	6 ms	22608 KB	Output is correct
42	Correct	7 ms	22864 KB	Output is correct
43	Correct	7 ms	23128 KB	Output is correct
44	Correct	4 ms	22352 KB	Output is correct
45	Correct	13 ms	23120 KB	Output is correct
46	Correct	8 ms	22864 KB	Output is correct
47	Correct	5 ms	22352 KB	Output is correct
48	Correct	7 ms	22608 KB	Output is correct
49	Correct	9 ms	22864 KB	Output is correct
50	Correct	16 ms	23116 KB	Output is correct
51	Correct	7 ms	22608 KB	Output is correct
52	Correct	7 ms	22608 KB	Output is correct
53	Correct	7 ms	22608 KB	Output is correct
54	Correct	8 ms	22740 KB	Output is correct
55	Correct	5 ms	22352 KB	Output is correct
56	Correct	70 ms	33756 KB	Output is correct
57	Correct	132 ms	42612 KB	Output is correct
58	Correct	6 ms	22608 KB	Output is correct
59	Correct	5 ms	22352 KB	Output is correct
60	Correct	5 ms	22320 KB	Output is correct
61	Correct	72 ms	33608 KB	Output is correct
62	Correct	6 ms	22608 KB	Output is correct
63	Correct	131 ms	47712 KB	Output is correct
64	Correct	117 ms	40776 KB	Output is correct
65	Correct	6 ms	22608 KB	Output is correct
66	Correct	74 ms	34896 KB	Output is correct
67	Correct	6 ms	22620 KB	Output is correct
68	Correct	6 ms	22608 KB	Output is correct
69	Correct	66 ms	33848 KB	Output is correct
70	Correct	6 ms	23120 KB	Output is correct
71	Correct	68 ms	33608 KB	Output is correct
72	Correct	100 ms	37964 KB	Output is correct
73	Correct	5 ms	22352 KB	Output is correct
74	Correct	87 ms	48088 KB	Output is correct
75	Correct	115 ms	43336 KB	Output is correct
76	Correct	7 ms	22608 KB	Output is correct
77	Correct	7 ms	22864 KB	Output is correct
78	Correct	72 ms	33912 KB	Output is correct
79	Correct	122 ms	40328 KB	Output is correct
80	Correct	11 ms	22988 KB	Output is correct
81	Correct	6 ms	22608 KB	Output is correct
82	Correct	4 ms	22352 KB	Output is correct
83	Correct	4 ms	22352 KB	Output is correct
84	Correct	7 ms	22608 KB	Output is correct
85	Correct	191 ms	51024 KB	Output is correct
86	Correct	6 ms	22608 KB	Output is correct
87	Correct	62 ms	34040 KB	Output is correct
88	Correct	4 ms	22352 KB	Output is correct
89	Correct	61 ms	33612 KB	Output is correct
90	Correct	147 ms	49736 KB	Output is correct
91	Correct	197 ms	66632 KB	Output is correct
92	Correct	81 ms	33856 KB	Output is correct
93	Correct	7 ms	22880 KB	Output is correct
94	Correct	4 ms	22364 KB	Output is correct
95	Correct	118 ms	41532 KB	Output is correct
96	Execution timed out	3072 ms	39188 KB	Time limit exceeded
97	Halted	0 ms	0 KB	-

답안 #1114225

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