답안 #133165

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
133165	2019-07-20T08:20:09 Z	SirCeness	Mergers (JOI19_mergers)	C++14	48 / 100	3000 ms	42564 KB

mergers

#include <bits/stdc++.h>

using namespace std;
#define mod 1000000007
#define mp make_pair
#define pb push_back
#define bas(x) #x << ": " << x << " "
#define prarr(x, n) cout << #x << ": "; for (int qsd = 0; qsd < n; qsd++) cout << x[qsd] << " "; cout << endl;
#define prarrv(x) cout << #x << ": "; for (int qsd = 0; qsd < (int)x.size(); qsd++) cout << x[qsd] << " "; cout << endl;
#define inside sl<=l&&r<=sr
#define outside sr<l||r<sl

using ll = long long;

int n, k;
list<int> adj[500005];
int ilk[500005];
int son[500005];
list<int> st[500005];

int dfs(int node, int ata, int state){
	//cout << "dfs(" << node << ", " << ata << ", " << state << ")" << endl;
	int ret = (son[ilk[node]] == son[state]);
	for (int ch: adj[node]){
		if (ch == ata) continue;
		if (dfs(ch, node, state)){
			ret = 1;
			if (son[ilk[node]] > state) son[state] = son[ilk[node]];
			else son[ilk[node]] = son[state];
		}
	}
	return ret;
}

int main(){
	cin >> n >> k;
	for (int i = 0; i < n-1; i++){
		int u, v;
		cin >> u >> v;
		u--; v--;
		adj[u].pb(v);
		adj[v].pb(u);
	}
	
	for (int i = 0; i < n; i++){
		cin >> ilk[i];
		ilk[i]--;
		st[ilk[i]].pb(i);
	}
	
	for (int i = 0 ; i < k; i++) son[i] = i;
	
	for (int i = 0; i < k; i++){
		if (st[i].size() != 0) dfs(*st[i].begin(), -1, i);
	}
	
	int ans = 0;
	vector<int> say(k, 0);
	for (int i = 0; i < n; i++){
		for (int j: adj[i]){
			if (son[ilk[i]] != son[ilk[j]]){
				//cout << "artir" << bas(i) << bas(j) << endl; 
				say[son[ilk[i]]]++;
				//say[son[ilk[j]]]++;
			}
		}
	}
	
	//for (int i = 0; i < n; i++) cout << son[ilk[i]] << " "; cout << endl;
	
	for (int i = 0; i < k; i++) if (say[i] == 1) ans++;
	cout << (ans+1)/2 << endl;
	
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	23804 KB	Output is correct
2	Correct	24 ms	23800 KB	Output is correct
3	Correct	23 ms	23800 KB	Output is correct
4	Correct	23 ms	23800 KB	Output is correct
5	Correct	23 ms	23868 KB	Output is correct
6	Correct	23 ms	23804 KB	Output is correct
7	Correct	24 ms	23772 KB	Output is correct
8	Correct	23 ms	23800 KB	Output is correct
9	Correct	23 ms	23768 KB	Output is correct
10	Correct	23 ms	23800 KB	Output is correct
11	Correct	24 ms	23800 KB	Output is correct
12	Correct	23 ms	23928 KB	Output is correct
13	Correct	23 ms	23800 KB	Output is correct
14	Correct	23 ms	23800 KB	Output is correct
15	Correct	23 ms	23800 KB	Output is correct
16	Correct	24 ms	23800 KB	Output is correct
17	Correct	23 ms	23800 KB	Output is correct
18	Correct	24 ms	23800 KB	Output is correct
19	Correct	23 ms	23800 KB	Output is correct
20	Correct	24 ms	23824 KB	Output is correct
21	Correct	23 ms	23800 KB	Output is correct
22	Correct	23 ms	23800 KB	Output is correct
23	Correct	23 ms	23800 KB	Output is correct
24	Correct	23 ms	23800 KB	Output is correct

Subtask #2
24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	23804 KB	Output is correct
2	Correct	24 ms	23800 KB	Output is correct
3	Correct	23 ms	23800 KB	Output is correct
4	Correct	23 ms	23800 KB	Output is correct
5	Correct	23 ms	23868 KB	Output is correct
6	Correct	23 ms	23804 KB	Output is correct
7	Correct	24 ms	23772 KB	Output is correct
8	Correct	23 ms	23800 KB	Output is correct
9	Correct	23 ms	23768 KB	Output is correct
10	Correct	23 ms	23800 KB	Output is correct
11	Correct	24 ms	23800 KB	Output is correct
12	Correct	23 ms	23928 KB	Output is correct
13	Correct	23 ms	23800 KB	Output is correct
14	Correct	23 ms	23800 KB	Output is correct
15	Correct	23 ms	23800 KB	Output is correct
16	Correct	24 ms	23800 KB	Output is correct
17	Correct	23 ms	23800 KB	Output is correct
18	Correct	24 ms	23800 KB	Output is correct
19	Correct	23 ms	23800 KB	Output is correct
20	Correct	24 ms	23824 KB	Output is correct
21	Correct	23 ms	23800 KB	Output is correct
22	Correct	23 ms	23800 KB	Output is correct
23	Correct	23 ms	23800 KB	Output is correct
24	Correct	23 ms	23800 KB	Output is correct
25	Correct	23 ms	23800 KB	Output is correct
26	Correct	197 ms	24184 KB	Output is correct
27	Correct	33 ms	24188 KB	Output is correct
28	Correct	315 ms	24316 KB	Output is correct
29	Correct	242 ms	24184 KB	Output is correct
30	Correct	44 ms	24184 KB	Output is correct
31	Correct	24 ms	23800 KB	Output is correct
32	Correct	413 ms	24444 KB	Output is correct
33	Correct	23 ms	23800 KB	Output is correct
34	Correct	30 ms	24188 KB	Output is correct
35	Correct	240 ms	24184 KB	Output is correct
36	Correct	32 ms	24184 KB	Output is correct
37	Correct	136 ms	24192 KB	Output is correct
38	Correct	23 ms	23800 KB	Output is correct
39	Correct	128 ms	24196 KB	Output is correct
40	Correct	28 ms	24184 KB	Output is correct
41	Correct	29 ms	24184 KB	Output is correct
42	Correct	75 ms	24184 KB	Output is correct
43	Correct	31 ms	24444 KB	Output is correct
44	Correct	24 ms	23800 KB	Output is correct
45	Correct	352 ms	24312 KB	Output is correct
46	Correct	138 ms	24196 KB	Output is correct
47	Correct	23 ms	23800 KB	Output is correct
48	Correct	74 ms	24184 KB	Output is correct
49	Correct	110 ms	24184 KB	Output is correct
50	Correct	314 ms	24316 KB	Output is correct
51	Correct	81 ms	24192 KB	Output is correct
52	Correct	30 ms	24184 KB	Output is correct
53	Correct	67 ms	24184 KB	Output is correct
54	Correct	33 ms	24184 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	23804 KB	Output is correct
2	Correct	24 ms	23800 KB	Output is correct
3	Correct	23 ms	23800 KB	Output is correct
4	Correct	23 ms	23800 KB	Output is correct
5	Correct	23 ms	23868 KB	Output is correct
6	Correct	23 ms	23804 KB	Output is correct
7	Correct	24 ms	23772 KB	Output is correct
8	Correct	23 ms	23800 KB	Output is correct
9	Correct	23 ms	23768 KB	Output is correct
10	Correct	23 ms	23800 KB	Output is correct
11	Correct	24 ms	23800 KB	Output is correct
12	Correct	23 ms	23928 KB	Output is correct
13	Correct	23 ms	23800 KB	Output is correct
14	Correct	23 ms	23800 KB	Output is correct
15	Correct	23 ms	23800 KB	Output is correct
16	Correct	24 ms	23800 KB	Output is correct
17	Correct	23 ms	23800 KB	Output is correct
18	Correct	24 ms	23800 KB	Output is correct
19	Correct	23 ms	23800 KB	Output is correct
20	Correct	24 ms	23824 KB	Output is correct
21	Correct	23 ms	23800 KB	Output is correct
22	Correct	23 ms	23800 KB	Output is correct
23	Correct	23 ms	23800 KB	Output is correct
24	Correct	23 ms	23800 KB	Output is correct
25	Correct	23 ms	23800 KB	Output is correct
26	Correct	322 ms	33716 KB	Output is correct
27	Correct	625 ms	33644 KB	Output is correct
28	Correct	33 ms	24056 KB	Output is correct
29	Correct	23 ms	23800 KB	Output is correct
30	Correct	23 ms	23800 KB	Output is correct
31	Correct	568 ms	33676 KB	Output is correct
32	Correct	30 ms	24060 KB	Output is correct
33	Correct	1242 ms	41368 KB	Output is correct
34	Correct	538 ms	33648 KB	Output is correct
35	Correct	34 ms	24184 KB	Output is correct
36	Correct	1026 ms	36012 KB	Output is correct
37	Correct	27 ms	24184 KB	Output is correct
38	Correct	28 ms	24184 KB	Output is correct
39	Correct	321 ms	34980 KB	Output is correct
40	Correct	28 ms	24312 KB	Output is correct
41	Correct	226 ms	34972 KB	Output is correct
42	Correct	1130 ms	39884 KB	Output is correct
43	Correct	23 ms	23800 KB	Output is correct
44	Correct	252 ms	42564 KB	Output is correct
45	Correct	840 ms	38904 KB	Output is correct
46	Correct	30 ms	24184 KB	Output is correct
47	Correct	33 ms	24184 KB	Output is correct

Subtask #4
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	283 ms	33640 KB	Output is correct
2	Execution timed out	3033 ms	33912 KB	Time limit exceeded
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	23804 KB	Output is correct
2	Correct	24 ms	23800 KB	Output is correct
3	Correct	23 ms	23800 KB	Output is correct
4	Correct	23 ms	23800 KB	Output is correct
5	Correct	23 ms	23868 KB	Output is correct
6	Correct	23 ms	23804 KB	Output is correct
7	Correct	24 ms	23772 KB	Output is correct
8	Correct	23 ms	23800 KB	Output is correct
9	Correct	23 ms	23768 KB	Output is correct
10	Correct	23 ms	23800 KB	Output is correct
11	Correct	24 ms	23800 KB	Output is correct
12	Correct	23 ms	23928 KB	Output is correct
13	Correct	23 ms	23800 KB	Output is correct
14	Correct	23 ms	23800 KB	Output is correct
15	Correct	23 ms	23800 KB	Output is correct
16	Correct	24 ms	23800 KB	Output is correct
17	Correct	23 ms	23800 KB	Output is correct
18	Correct	24 ms	23800 KB	Output is correct
19	Correct	23 ms	23800 KB	Output is correct
20	Correct	24 ms	23824 KB	Output is correct
21	Correct	23 ms	23800 KB	Output is correct
22	Correct	23 ms	23800 KB	Output is correct
23	Correct	23 ms	23800 KB	Output is correct
24	Correct	23 ms	23800 KB	Output is correct
25	Correct	23 ms	23800 KB	Output is correct
26	Correct	197 ms	24184 KB	Output is correct
27	Correct	33 ms	24188 KB	Output is correct
28	Correct	315 ms	24316 KB	Output is correct
29	Correct	242 ms	24184 KB	Output is correct
30	Correct	44 ms	24184 KB	Output is correct
31	Correct	24 ms	23800 KB	Output is correct
32	Correct	413 ms	24444 KB	Output is correct
33	Correct	23 ms	23800 KB	Output is correct
34	Correct	30 ms	24188 KB	Output is correct
35	Correct	240 ms	24184 KB	Output is correct
36	Correct	32 ms	24184 KB	Output is correct
37	Correct	136 ms	24192 KB	Output is correct
38	Correct	23 ms	23800 KB	Output is correct
39	Correct	128 ms	24196 KB	Output is correct
40	Correct	28 ms	24184 KB	Output is correct
41	Correct	29 ms	24184 KB	Output is correct
42	Correct	75 ms	24184 KB	Output is correct
43	Correct	31 ms	24444 KB	Output is correct
44	Correct	24 ms	23800 KB	Output is correct
45	Correct	352 ms	24312 KB	Output is correct
46	Correct	138 ms	24196 KB	Output is correct
47	Correct	23 ms	23800 KB	Output is correct
48	Correct	74 ms	24184 KB	Output is correct
49	Correct	110 ms	24184 KB	Output is correct
50	Correct	314 ms	24316 KB	Output is correct
51	Correct	81 ms	24192 KB	Output is correct
52	Correct	30 ms	24184 KB	Output is correct
53	Correct	67 ms	24184 KB	Output is correct
54	Correct	33 ms	24184 KB	Output is correct
55	Correct	23 ms	23800 KB	Output is correct
56	Correct	322 ms	33716 KB	Output is correct
57	Correct	625 ms	33644 KB	Output is correct
58	Correct	33 ms	24056 KB	Output is correct
59	Correct	23 ms	23800 KB	Output is correct
60	Correct	23 ms	23800 KB	Output is correct
61	Correct	568 ms	33676 KB	Output is correct
62	Correct	30 ms	24060 KB	Output is correct
63	Correct	1242 ms	41368 KB	Output is correct
64	Correct	538 ms	33648 KB	Output is correct
65	Correct	34 ms	24184 KB	Output is correct
66	Correct	1026 ms	36012 KB	Output is correct
67	Correct	27 ms	24184 KB	Output is correct
68	Correct	28 ms	24184 KB	Output is correct
69	Correct	321 ms	34980 KB	Output is correct
70	Correct	28 ms	24312 KB	Output is correct
71	Correct	226 ms	34972 KB	Output is correct
72	Correct	1130 ms	39884 KB	Output is correct
73	Correct	23 ms	23800 KB	Output is correct
74	Correct	252 ms	42564 KB	Output is correct
75	Correct	840 ms	38904 KB	Output is correct
76	Correct	30 ms	24184 KB	Output is correct
77	Correct	33 ms	24184 KB	Output is correct
78	Correct	283 ms	33640 KB	Output is correct
79	Execution timed out	3033 ms	33912 KB	Time limit exceeded
80	Halted	0 ms	0 KB	-

답안 #133165

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