oj.uz

Submission #1114240

# Submission time Handle Problem Language Result Execution time Memory
1114240 2024-11-18T12:11:49 Z Dan4Life Mergers (JOI19_mergers) C++17
48 / 100
 3000 ms 77640 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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 -