| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1114231 |
2024-11-18T11:59:09 Z |
Dan4Life |
Mergers (JOI19_mergers) |
C++17 |
|
3000 ms |
56044 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;
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;
map<int,int> cnt; cnt.clear();
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++){
int x = findSet(i);
for(int j : adj[i])
deg[x]+=(x!=findSet(j));
}
int cnt = 1;
for(int i = 1; i <= n; i++) cnt+=(deg[i]==1);
cout << cnt/2 << "\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
31568 KB |
Output is correct |
| 2 |
Correct |
14 ms |
24656 KB |
Output is correct |
| 3 |
Correct |
18 ms |
24656 KB |
Output is correct |
| 4 |
Correct |
17 ms |
23888 KB |
Output is correct |
| 5 |
Correct |
23 ms |
23888 KB |
Output is correct |
| 6 |
Correct |
19 ms |
23904 KB |
Output is correct |
| 7 |
Correct |
19 ms |
23888 KB |
Output is correct |
| 8 |
Correct |
18 ms |
23904 KB |
Output is correct |
| 9 |
Correct |
18 ms |
23780 KB |
Output is correct |
| 10 |
Correct |
18 ms |
23888 KB |
Output is correct |
| 11 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 12 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 13 |
Correct |
5 ms |
33576 KB |
Output is correct |
| 14 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 15 |
Correct |
6 ms |
33460 KB |
Output is correct |
| 16 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 17 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 18 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 19 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 20 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 21 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 22 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 23 |
Correct |
6 ms |
33576 KB |
Output is correct |
| 24 |
Correct |
6 ms |
33616 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
31568 KB |
Output is correct |
| 2 |
Correct |
14 ms |
24656 KB |
Output is correct |
| 3 |
Correct |
18 ms |
24656 KB |
Output is correct |
| 4 |
Correct |
17 ms |
23888 KB |
Output is correct |
| 5 |
Correct |
23 ms |
23888 KB |
Output is correct |
| 6 |
Correct |
19 ms |
23904 KB |
Output is correct |
| 7 |
Correct |
19 ms |
23888 KB |
Output is correct |
| 8 |
Correct |
18 ms |
23904 KB |
Output is correct |
| 9 |
Correct |
18 ms |
23780 KB |
Output is correct |
| 10 |
Correct |
18 ms |
23888 KB |
Output is correct |
| 11 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 12 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 13 |
Correct |
5 ms |
33576 KB |
Output is correct |
| 14 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 15 |
Correct |
6 ms |
33460 KB |
Output is correct |
| 16 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 17 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 18 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 19 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 20 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 21 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 22 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 23 |
Correct |
6 ms |
33576 KB |
Output is correct |
| 24 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 25 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 26 |
Correct |
16 ms |
33872 KB |
Output is correct |
| 27 |
Correct |
11 ms |
33872 KB |
Output is correct |
| 28 |
Correct |
299 ms |
34116 KB |
Output is correct |
| 29 |
Correct |
12 ms |
33872 KB |
Output is correct |
| 30 |
Correct |
10 ms |
33872 KB |
Output is correct |
| 31 |
Correct |
6 ms |
33784 KB |
Output is correct |
| 32 |
Correct |
336 ms |
34456 KB |
Output is correct |
| 33 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 34 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 35 |
Correct |
14 ms |
33872 KB |
Output is correct |
| 36 |
Correct |
9 ms |
33872 KB |
Output is correct |
| 37 |
Correct |
19 ms |
33952 KB |
Output is correct |
| 38 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 39 |
Correct |
11 ms |
34028 KB |
Output is correct |
| 40 |
Correct |
7 ms |
33872 KB |
Output is correct |
| 41 |
Correct |
7 ms |
33888 KB |
Output is correct |
| 42 |
Correct |
8 ms |
33872 KB |
Output is correct |
| 43 |
Correct |
23 ms |
32296 KB |
Output is correct |
| 44 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 45 |
Correct |
144 ms |
33872 KB |
Output is correct |
| 46 |
Correct |
23 ms |
33932 KB |
Output is correct |
| 47 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 48 |
Correct |
13 ms |
33920 KB |
Output is correct |
| 49 |
Correct |
8 ms |
33872 KB |
Output is correct |
| 50 |
Correct |
121 ms |
33976 KB |
Output is correct |
| 51 |
Correct |
10 ms |
33872 KB |
Output is correct |
| 52 |
Correct |
6 ms |
33872 KB |
Output is correct |
| 53 |
Correct |
7 ms |
33872 KB |
Output is correct |
| 54 |
Correct |
10 ms |
33872 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
31568 KB |
Output is correct |
| 2 |
Correct |
14 ms |
24656 KB |
Output is correct |
| 3 |
Correct |
18 ms |
24656 KB |
Output is correct |
| 4 |
Correct |
17 ms |
23888 KB |
Output is correct |
| 5 |
Correct |
23 ms |
23888 KB |
Output is correct |
| 6 |
Correct |
19 ms |
23904 KB |
Output is correct |
| 7 |
Correct |
19 ms |
23888 KB |
Output is correct |
| 8 |
Correct |
18 ms |
23904 KB |
Output is correct |
| 9 |
Correct |
18 ms |
23780 KB |
Output is correct |
| 10 |
Correct |
18 ms |
23888 KB |
Output is correct |
| 11 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 12 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 13 |
Correct |
5 ms |
33576 KB |
Output is correct |
| 14 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 15 |
Correct |
6 ms |
33460 KB |
Output is correct |
| 16 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 17 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 18 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 19 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 20 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 21 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 22 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 23 |
Correct |
6 ms |
33576 KB |
Output is correct |
| 24 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 25 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 26 |
Correct |
66 ms |
41452 KB |
Output is correct |
| 27 |
Correct |
197 ms |
42256 KB |
Output is correct |
| 28 |
Correct |
11 ms |
33912 KB |
Output is correct |
| 29 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 30 |
Correct |
5 ms |
33616 KB |
Output is correct |
| 31 |
Correct |
140 ms |
41920 KB |
Output is correct |
| 32 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 33 |
Execution timed out |
3066 ms |
56044 KB |
Time limit exceeded |
| 34 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
66 ms |
41408 KB |
Output is correct |
| 2 |
Correct |
181 ms |
45432 KB |
Output is correct |
| 3 |
Correct |
15 ms |
33816 KB |
Output is correct |
| 4 |
Correct |
12 ms |
33872 KB |
Output is correct |
| 5 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 6 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 7 |
Correct |
7 ms |
33636 KB |
Output is correct |
| 8 |
Correct |
2437 ms |
44228 KB |
Output is correct |
| 9 |
Correct |
9 ms |
33872 KB |
Output is correct |
| 10 |
Correct |
200 ms |
42024 KB |
Output is correct |
| 11 |
Correct |
6 ms |
33784 KB |
Output is correct |
| 12 |
Correct |
693 ms |
41920 KB |
Output is correct |
| 13 |
Correct |
1057 ms |
44612 KB |
Output is correct |
| 14 |
Correct |
747 ms |
47172 KB |
Output is correct |
| 15 |
Correct |
63 ms |
40616 KB |
Output is correct |
| 16 |
Correct |
10 ms |
33752 KB |
Output is correct |
| 17 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 18 |
Correct |
184 ms |
45072 KB |
Output is correct |
| 19 |
Execution timed out |
3067 ms |
46916 KB |
Time limit exceeded |
| 20 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
31568 KB |
Output is correct |
| 2 |
Correct |
14 ms |
24656 KB |
Output is correct |
| 3 |
Correct |
18 ms |
24656 KB |
Output is correct |
| 4 |
Correct |
17 ms |
23888 KB |
Output is correct |
| 5 |
Correct |
23 ms |
23888 KB |
Output is correct |
| 6 |
Correct |
19 ms |
23904 KB |
Output is correct |
| 7 |
Correct |
19 ms |
23888 KB |
Output is correct |
| 8 |
Correct |
18 ms |
23904 KB |
Output is correct |
| 9 |
Correct |
18 ms |
23780 KB |
Output is correct |
| 10 |
Correct |
18 ms |
23888 KB |
Output is correct |
| 11 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 12 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 13 |
Correct |
5 ms |
33576 KB |
Output is correct |
| 14 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 15 |
Correct |
6 ms |
33460 KB |
Output is correct |
| 16 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 17 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 18 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 19 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 20 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 21 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 22 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 23 |
Correct |
6 ms |
33576 KB |
Output is correct |
| 24 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 25 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 26 |
Correct |
16 ms |
33872 KB |
Output is correct |
| 27 |
Correct |
11 ms |
33872 KB |
Output is correct |
| 28 |
Correct |
299 ms |
34116 KB |
Output is correct |
| 29 |
Correct |
12 ms |
33872 KB |
Output is correct |
| 30 |
Correct |
10 ms |
33872 KB |
Output is correct |
| 31 |
Correct |
6 ms |
33784 KB |
Output is correct |
| 32 |
Correct |
336 ms |
34456 KB |
Output is correct |
| 33 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 34 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 35 |
Correct |
14 ms |
33872 KB |
Output is correct |
| 36 |
Correct |
9 ms |
33872 KB |
Output is correct |
| 37 |
Correct |
19 ms |
33952 KB |
Output is correct |
| 38 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 39 |
Correct |
11 ms |
34028 KB |
Output is correct |
| 40 |
Correct |
7 ms |
33872 KB |
Output is correct |
| 41 |
Correct |
7 ms |
33888 KB |
Output is correct |
| 42 |
Correct |
8 ms |
33872 KB |
Output is correct |
| 43 |
Correct |
23 ms |
32296 KB |
Output is correct |
| 44 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 45 |
Correct |
144 ms |
33872 KB |
Output is correct |
| 46 |
Correct |
23 ms |
33932 KB |
Output is correct |
| 47 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 48 |
Correct |
13 ms |
33920 KB |
Output is correct |
| 49 |
Correct |
8 ms |
33872 KB |
Output is correct |
| 50 |
Correct |
121 ms |
33976 KB |
Output is correct |
| 51 |
Correct |
10 ms |
33872 KB |
Output is correct |
| 52 |
Correct |
6 ms |
33872 KB |
Output is correct |
| 53 |
Correct |
7 ms |
33872 KB |
Output is correct |
| 54 |
Correct |
10 ms |
33872 KB |
Output is correct |
| 55 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 56 |
Correct |
66 ms |
41452 KB |
Output is correct |
| 57 |
Correct |
197 ms |
42256 KB |
Output is correct |
| 58 |
Correct |
11 ms |
33912 KB |
Output is correct |
| 59 |
Correct |
6 ms |
33616 KB |
Output is correct |
| 60 |
Correct |
5 ms |
33616 KB |
Output is correct |
| 61 |
Correct |
140 ms |
41920 KB |
Output is correct |
| 62 |
Correct |
7 ms |
33616 KB |
Output is correct |
| 63 |
Execution timed out |
3066 ms |
56044 KB |
Time limit exceeded |
| 64 |
Halted |
0 ms |
0 KB |
- |
