oj.uz

Submission #1114228

# Submission time Handle Problem Language Result Execution time Memory
1114228 2024-11-18T11:57:29 Z Dan4Life Mergers (JOI19_mergers) C++17
48 / 100
 3000 ms 91572 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)
#define int long long
using ar2 = array<int,2>;
const int N = (int)5e5+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

# Verdict Execution time Memory Grader output
1 Correct 8 ms 46928 KB Output is correct
2 Correct 9 ms 47096 KB Output is correct
3 Correct 8 ms 46928 KB Output is correct
4 Correct 8 ms 46928 KB Output is correct
5 Correct 9 ms 47096 KB Output is correct
6 Correct 8 ms 46928 KB Output is correct
7 Correct 8 ms 46928 KB Output is correct
8 Correct 8 ms 46928 KB Output is correct
9 Correct 8 ms 46928 KB Output is correct
10 Correct 8 ms 46928 KB Output is correct
11 Correct 8 ms 46928 KB Output is correct
12 Correct 8 ms 46928 KB Output is correct
13 Correct 8 ms 46928 KB Output is correct
14 Correct 8 ms 46928 KB Output is correct
15 Correct 9 ms 46928 KB Output is correct
16 Correct 7 ms 44880 KB Output is correct
17 Correct 8 ms 47044 KB Output is correct
18 Correct 8 ms 46928 KB Output is correct
19 Correct 8 ms 46928 KB Output is correct
20 Correct 8 ms 46928 KB Output is correct
21 Correct 8 ms 46928 KB Output is correct
22 Correct 9 ms 44880 KB Output is correct
23 Correct 8 ms 42744 KB Output is correct
24 Correct 7 ms 40784 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 46928 KB Output is correct
2 Correct 9 ms 47096 KB Output is correct
3 Correct 8 ms 46928 KB Output is correct
4 Correct 8 ms 46928 KB Output is correct
5 Correct 9 ms 47096 KB Output is correct
6 Correct 8 ms 46928 KB Output is correct
7 Correct 8 ms 46928 KB Output is correct
8 Correct 8 ms 46928 KB Output is correct
9 Correct 8 ms 46928 KB Output is correct
10 Correct 8 ms 46928 KB Output is correct
11 Correct 8 ms 46928 KB Output is correct
12 Correct 8 ms 46928 KB Output is correct
13 Correct 8 ms 46928 KB Output is correct
14 Correct 8 ms 46928 KB Output is correct
15 Correct 9 ms 46928 KB Output is correct
16 Correct 7 ms 44880 KB Output is correct
17 Correct 8 ms 47044 KB Output is correct
18 Correct 8 ms 46928 KB Output is correct
19 Correct 8 ms 46928 KB Output is correct
20 Correct 8 ms 46928 KB Output is correct
21 Correct 8 ms 46928 KB Output is correct
22 Correct 9 ms 44880 KB Output is correct
23 Correct 8 ms 42744 KB Output is correct
24 Correct 7 ms 40784 KB Output is correct
25 Correct 8 ms 46928 KB Output is correct
26 Correct 10 ms 41552 KB Output is correct
27 Correct 9 ms 41296 KB Output is correct
28 Correct 23 ms 43600 KB Output is correct
29 Correct 11 ms 42156 KB Output is correct
30 Correct 10 ms 41552 KB Output is correct
31 Correct 7 ms 38736 KB Output is correct
32 Correct 26 ms 43856 KB Output is correct
33 Correct 8 ms 40784 KB Output is correct
34 Correct 9 ms 41040 KB Output is correct
35 Correct 11 ms 43856 KB Output is correct
36 Correct 8 ms 41040 KB Output is correct
37 Correct 12 ms 41728 KB Output is correct
38 Correct 7 ms 40784 KB Output is correct
39 Correct 12 ms 41980 KB Output is correct
40 Correct 9 ms 38992 KB Output is correct
41 Correct 9 ms 41080 KB Output is correct
42 Correct 10 ms 43344 KB Output is correct
43 Correct 9 ms 39676 KB Output is correct
44 Correct 8 ms 46928 KB Output is correct
45 Correct 15 ms 41552 KB Output is correct
46 Correct 13 ms 41552 KB Output is correct
47 Correct 9 ms 44904 KB Output is correct
48 Correct 10 ms 45392 KB Output is correct
49 Correct 9 ms 39248 KB Output is correct
50 Correct 19 ms 49744 KB Output is correct
51 Correct 11 ms 49656 KB Output is correct
52 Correct 11 ms 49232 KB Output is correct
53 Correct 10 ms 49488 KB Output is correct
54 Correct 11 ms 45392 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 46928 KB Output is correct
2 Correct 9 ms 47096 KB Output is correct
3 Correct 8 ms 46928 KB Output is correct
4 Correct 8 ms 46928 KB Output is correct
5 Correct 9 ms 47096 KB Output is correct
6 Correct 8 ms 46928 KB Output is correct
7 Correct 8 ms 46928 KB Output is correct
8 Correct 8 ms 46928 KB Output is correct
9 Correct 8 ms 46928 KB Output is correct
10 Correct 8 ms 46928 KB Output is correct
11 Correct 8 ms 46928 KB Output is correct
12 Correct 8 ms 46928 KB Output is correct
13 Correct 8 ms 46928 KB Output is correct
14 Correct 8 ms 46928 KB Output is correct
15 Correct 9 ms 46928 KB Output is correct
16 Correct 7 ms 44880 KB Output is correct
17 Correct 8 ms 47044 KB Output is correct
18 Correct 8 ms 46928 KB Output is correct
19 Correct 8 ms 46928 KB Output is correct
20 Correct 8 ms 46928 KB Output is correct
21 Correct 8 ms 46928 KB Output is correct
22 Correct 9 ms 44880 KB Output is correct
23 Correct 8 ms 42744 KB Output is correct
24 Correct 7 ms 40784 KB Output is correct
25 Correct 7 ms 40784 KB Output is correct
26 Correct 70 ms 55488 KB Output is correct
27 Correct 119 ms 64740 KB Output is correct
28 Correct 10 ms 49232 KB Output is correct
29 Correct 8 ms 46844 KB Output is correct
30 Correct 8 ms 46928 KB Output is correct
31 Correct 80 ms 58896 KB Output is correct
32 Correct 10 ms 47184 KB Output is correct
33 Correct 140 ms 73032 KB Output is correct
34 Correct 112 ms 66120 KB Output is correct
35 Correct 9 ms 49232 KB Output is correct
36 Correct 69 ms 61192 KB Output is correct
37 Correct 9 ms 49236 KB Output is correct
38 Correct 10 ms 49232 KB Output is correct
39 Correct 66 ms 59064 KB Output is correct
40 Correct 10 ms 49744 KB Output is correct
41 Correct 72 ms 60028 KB Output is correct
42 Correct 91 ms 63264 KB Output is correct
43 Correct 7 ms 42832 KB Output is correct
44 Correct 92 ms 69008 KB Output is correct
45 Correct 117 ms 64076 KB Output is correct
46 Correct 10 ms 41296 KB Output is correct
47 Correct 10 ms 47440 KB Output is correct

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 58096 KB Output is correct
2 Correct 135 ms 65468 KB Output is correct
3 Correct 11 ms 49744 KB Output is correct
4 Correct 9 ms 45136 KB Output is correct
5 Correct 9 ms 46928 KB Output is correct
6 Correct 8 ms 46944 KB Output is correct
7 Correct 10 ms 49232 KB Output is correct
8 Correct 190 ms 76116 KB Output is correct
9 Correct 11 ms 45136 KB Output is correct
10 Correct 95 ms 59208 KB Output is correct
11 Correct 9 ms 46928 KB Output is correct
12 Correct 79 ms 58696 KB Output is correct
13 Correct 166 ms 74824 KB Output is correct
14 Correct 196 ms 91572 KB Output is correct
15 Correct 71 ms 59136 KB Output is correct
16 Correct 10 ms 47440 KB Output is correct
17 Correct 8 ms 46928 KB Output is correct
18 Correct 126 ms 66072 KB Output is correct
19 Execution timed out 3039 ms 60144 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 46928 KB Output is correct
2 Correct 9 ms 47096 KB Output is correct
3 Correct 8 ms 46928 KB Output is correct
4 Correct 8 ms 46928 KB Output is correct
5 Correct 9 ms 47096 KB Output is correct
6 Correct 8 ms 46928 KB Output is correct
7 Correct 8 ms 46928 KB Output is correct
8 Correct 8 ms 46928 KB Output is correct
9 Correct 8 ms 46928 KB Output is correct
10 Correct 8 ms 46928 KB Output is correct
11 Correct 8 ms 46928 KB Output is correct
12 Correct 8 ms 46928 KB Output is correct
13 Correct 8 ms 46928 KB Output is correct
14 Correct 8 ms 46928 KB Output is correct
15 Correct 9 ms 46928 KB Output is correct
16 Correct 7 ms 44880 KB Output is correct
17 Correct 8 ms 47044 KB Output is correct
18 Correct 8 ms 46928 KB Output is correct
19 Correct 8 ms 46928 KB Output is correct
20 Correct 8 ms 46928 KB Output is correct
21 Correct 8 ms 46928 KB Output is correct
22 Correct 9 ms 44880 KB Output is correct
23 Correct 8 ms 42744 KB Output is correct
24 Correct 7 ms 40784 KB Output is correct
25 Correct 8 ms 46928 KB Output is correct
26 Correct 10 ms 41552 KB Output is correct
27 Correct 9 ms 41296 KB Output is correct
28 Correct 23 ms 43600 KB Output is correct
29 Correct 11 ms 42156 KB Output is correct
30 Correct 10 ms 41552 KB Output is correct
31 Correct 7 ms 38736 KB Output is correct
32 Correct 26 ms 43856 KB Output is correct
33 Correct 8 ms 40784 KB Output is correct
34 Correct 9 ms 41040 KB Output is correct
35 Correct 11 ms 43856 KB Output is correct
36 Correct 8 ms 41040 KB Output is correct
37 Correct 12 ms 41728 KB Output is correct
38 Correct 7 ms 40784 KB Output is correct
39 Correct 12 ms 41980 KB Output is correct
40 Correct 9 ms 38992 KB Output is correct
41 Correct 9 ms 41080 KB Output is correct
42 Correct 10 ms 43344 KB Output is correct
43 Correct 9 ms 39676 KB Output is correct
44 Correct 8 ms 46928 KB Output is correct
45 Correct 15 ms 41552 KB Output is correct
46 Correct 13 ms 41552 KB Output is correct
47 Correct 9 ms 44904 KB Output is correct
48 Correct 10 ms 45392 KB Output is correct
49 Correct 9 ms 39248 KB Output is correct
50 Correct 19 ms 49744 KB Output is correct
51 Correct 11 ms 49656 KB Output is correct
52 Correct 11 ms 49232 KB Output is correct
53 Correct 10 ms 49488 KB Output is correct
54 Correct 11 ms 45392 KB Output is correct
55 Correct 7 ms 40784 KB Output is correct
56 Correct 70 ms 55488 KB Output is correct
57 Correct 119 ms 64740 KB Output is correct
58 Correct 10 ms 49232 KB Output is correct
59 Correct 8 ms 46844 KB Output is correct
60 Correct 8 ms 46928 KB Output is correct
61 Correct 80 ms 58896 KB Output is correct
62 Correct 10 ms 47184 KB Output is correct
63 Correct 140 ms 73032 KB Output is correct
64 Correct 112 ms 66120 KB Output is correct
65 Correct 9 ms 49232 KB Output is correct
66 Correct 69 ms 61192 KB Output is correct
67 Correct 9 ms 49236 KB Output is correct
68 Correct 10 ms 49232 KB Output is correct
69 Correct 66 ms 59064 KB Output is correct
70 Correct 10 ms 49744 KB Output is correct
71 Correct 72 ms 60028 KB Output is correct
72 Correct 91 ms 63264 KB Output is correct
73 Correct 7 ms 42832 KB Output is correct
74 Correct 92 ms 69008 KB Output is correct
75 Correct 117 ms 64076 KB Output is correct
76 Correct 10 ms 41296 KB Output is correct
77 Correct 10 ms 47440 KB Output is correct
78 Correct 73 ms 58096 KB Output is correct
79 Correct 135 ms 65468 KB Output is correct
80 Correct 11 ms 49744 KB Output is correct
81 Correct 9 ms 45136 KB Output is correct
82 Correct 9 ms 46928 KB Output is correct
83 Correct 8 ms 46944 KB Output is correct
84 Correct 10 ms 49232 KB Output is correct
85 Correct 190 ms 76116 KB Output is correct
86 Correct 11 ms 45136 KB Output is correct
87 Correct 95 ms 59208 KB Output is correct
88 Correct 9 ms 46928 KB Output is correct
89 Correct 79 ms 58696 KB Output is correct
90 Correct 166 ms 74824 KB Output is correct
91 Correct 196 ms 91572 KB Output is correct
92 Correct 71 ms 59136 KB Output is correct
93 Correct 10 ms 47440 KB Output is correct
94 Correct 8 ms 46928 KB Output is correct
95 Correct 126 ms 66072 KB Output is correct
96 Execution timed out 3039 ms 60144 KB Time limit exceeded
97 Halted 0 ms 0 KB -