답안 #140841

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
140841	2019-08-05T15:09:51 Z	Utaha	Mergers (JOI19_mergers)	C++14	100 / 100	1342 ms	136944 KB

mergers

/*input
7 7
7 3
6 3
1 3
4 3
5 3
3 2
7
4
5
6
2
3
1

*/
#include <bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<ld,ld> pdd;
#define IOS ios_base::sync_with_stdio(0); cin.tie(0)
#define ALL(a) a.begin(),a.end()
#define SZ(a) ((int)a.size())
#define F first
#define S second
#define REP(i,n) for(int i=0;i<((int)n);i++)
#define pb emplace_back
#define MP(a,b) make_pair(a,b)
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#define GET_POS(c,x) (lower_bound(c.begin(),c.end(),x)-c.begin())
#define EL cout<<'\n'
template<typename T1,typename T2>
ostream& operator<<(ostream& out,pair<T1,T2> P){
	out<<'('<<P.F<<','<<P.S<<')';
	return out;
}
template<typename T>
ostream& operator<<(ostream& out,vector<T> V){
	REP(i,SZ(V)) out<<V[i]<<((i!=SZ(V)-1)?" ":"");
	return out;
}
#define version 20190726
//}}}
const ll maxn=500005;
const ll maxlg=20;
const ll INF64=1e18;
const int INF=0x3f3f3f3f;
const ll MOD=ll(1e9+7);
const ld PI=acos(-1);
const ld eps=1e-9;
//const ll p=880301;
//const ll P=31;

ll mypow(ll a,ll b){
	ll res=1LL;
	while(b){
		if(b&1) res=res*a%MOD;
		a=a*a%MOD;
		b>>=1;
	}
	return res;
}

int n,k;
vector<int> edge[maxn];
int c[maxn];
int tt[maxn];

int cnt=-1;
map<int,int> mp[maxn];
vector<int> num;
int dfs(int u,int par){
	int mx=-1;
	int ret=0;
	for(int v:edge[u]) if(v!=par){
		ret+=dfs(v,u);
		if(mx==-1||SZ(mp[mx])<SZ(mp[v])) mx=v;
	}
	for(int v:edge[u]) if(v!=par&&v!=mx){
		for(pii j:mp[v]){
			mp[mx][j.F]+=j.S;
			if(mp[mx][j.F]==tt[j.F]){
				mp[mx].erase(j.F);
			}
		}
	}
	if(mx!=-1) mp[mx].swap(mp[u]);
	mp[u][c[u]]++;
	if(mp[u][c[u]]==tt[c[u]]) mp[u].erase(c[u]);

	if(u&&SZ(mp[u])==0){
		cnt++;
		num.pb(ret);
		// cout<<u<<' '<<ret<<'\n';
		ret++;
	}
	return ret;
}

int main(){
	IOS;
	cin>>n>>k;
	REP(i,n-1){
		int u,v;
		cin>>u>>v;
		u--;v--;
		edge[u].pb(v);
		edge[v].pb(u);
	}
	REP(i,n) cin>>c[i],c[i]--,tt[c[i]]++;
	int tmp=dfs(0,-1);
	int ans=0;
	for(int i:num) ans+=(i==tmp-1)+(i==0);
	cout<<(ans+1)/2<<'\n';
	return 0;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	35 ms	35704 KB	Output is correct
2	Correct	34 ms	35576 KB	Output is correct
3	Correct	34 ms	35576 KB	Output is correct
4	Correct	34 ms	35576 KB	Output is correct
5	Correct	33 ms	35576 KB	Output is correct
6	Correct	33 ms	35576 KB	Output is correct
7	Correct	34 ms	35576 KB	Output is correct
8	Correct	35 ms	35676 KB	Output is correct
9	Correct	34 ms	35576 KB	Output is correct
10	Correct	34 ms	35548 KB	Output is correct
11	Correct	34 ms	35548 KB	Output is correct
12	Correct	34 ms	35576 KB	Output is correct
13	Correct	40 ms	35576 KB	Output is correct
14	Correct	92 ms	35704 KB	Output is correct
15	Correct	34 ms	35576 KB	Output is correct
16	Correct	33 ms	35576 KB	Output is correct
17	Correct	34 ms	35576 KB	Output is correct
18	Correct	34 ms	35576 KB	Output is correct
19	Correct	35 ms	35576 KB	Output is correct
20	Correct	34 ms	35508 KB	Output is correct
21	Correct	34 ms	35576 KB	Output is correct
22	Correct	34 ms	35576 KB	Output is correct
23	Correct	33 ms	35576 KB	Output is correct
24	Correct	34 ms	35576 KB	Output is correct

Subtask #2
24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	35 ms	35704 KB	Output is correct
2	Correct	34 ms	35576 KB	Output is correct
3	Correct	34 ms	35576 KB	Output is correct
4	Correct	34 ms	35576 KB	Output is correct
5	Correct	33 ms	35576 KB	Output is correct
6	Correct	33 ms	35576 KB	Output is correct
7	Correct	34 ms	35576 KB	Output is correct
8	Correct	35 ms	35676 KB	Output is correct
9	Correct	34 ms	35576 KB	Output is correct
10	Correct	34 ms	35548 KB	Output is correct
11	Correct	34 ms	35548 KB	Output is correct
12	Correct	34 ms	35576 KB	Output is correct
13	Correct	40 ms	35576 KB	Output is correct
14	Correct	92 ms	35704 KB	Output is correct
15	Correct	34 ms	35576 KB	Output is correct
16	Correct	33 ms	35576 KB	Output is correct
17	Correct	34 ms	35576 KB	Output is correct
18	Correct	34 ms	35576 KB	Output is correct
19	Correct	35 ms	35576 KB	Output is correct
20	Correct	34 ms	35508 KB	Output is correct
21	Correct	34 ms	35576 KB	Output is correct
22	Correct	34 ms	35576 KB	Output is correct
23	Correct	33 ms	35576 KB	Output is correct
24	Correct	34 ms	35576 KB	Output is correct
25	Correct	34 ms	35632 KB	Output is correct
26	Correct	35 ms	35836 KB	Output is correct
27	Correct	36 ms	35704 KB	Output is correct
28	Correct	36 ms	35960 KB	Output is correct
29	Correct	42 ms	35852 KB	Output is correct
30	Correct	38 ms	35960 KB	Output is correct
31	Correct	43 ms	35576 KB	Output is correct
32	Correct	37 ms	36088 KB	Output is correct
33	Correct	34 ms	35576 KB	Output is correct
34	Correct	36 ms	35832 KB	Output is correct
35	Correct	36 ms	35832 KB	Output is correct
36	Correct	35 ms	35832 KB	Output is correct
37	Correct	37 ms	35960 KB	Output is correct
38	Correct	34 ms	35576 KB	Output is correct
39	Correct	37 ms	36088 KB	Output is correct
40	Correct	36 ms	35832 KB	Output is correct
41	Correct	36 ms	35832 KB	Output is correct
42	Correct	37 ms	35960 KB	Output is correct
43	Correct	36 ms	36216 KB	Output is correct
44	Correct	34 ms	35580 KB	Output is correct
45	Correct	37 ms	35960 KB	Output is correct
46	Correct	37 ms	35836 KB	Output is correct
47	Correct	34 ms	35576 KB	Output is correct
48	Correct	36 ms	35832 KB	Output is correct
49	Correct	36 ms	35832 KB	Output is correct
50	Correct	37 ms	35944 KB	Output is correct
51	Correct	36 ms	35704 KB	Output is correct
52	Correct	44 ms	35832 KB	Output is correct
53	Correct	37 ms	35960 KB	Output is correct
54	Correct	37 ms	35960 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	35 ms	35704 KB	Output is correct
2	Correct	34 ms	35576 KB	Output is correct
3	Correct	34 ms	35576 KB	Output is correct
4	Correct	34 ms	35576 KB	Output is correct
5	Correct	33 ms	35576 KB	Output is correct
6	Correct	33 ms	35576 KB	Output is correct
7	Correct	34 ms	35576 KB	Output is correct
8	Correct	35 ms	35676 KB	Output is correct
9	Correct	34 ms	35576 KB	Output is correct
10	Correct	34 ms	35548 KB	Output is correct
11	Correct	34 ms	35548 KB	Output is correct
12	Correct	34 ms	35576 KB	Output is correct
13	Correct	40 ms	35576 KB	Output is correct
14	Correct	92 ms	35704 KB	Output is correct
15	Correct	34 ms	35576 KB	Output is correct
16	Correct	33 ms	35576 KB	Output is correct
17	Correct	34 ms	35576 KB	Output is correct
18	Correct	34 ms	35576 KB	Output is correct
19	Correct	35 ms	35576 KB	Output is correct
20	Correct	34 ms	35508 KB	Output is correct
21	Correct	34 ms	35576 KB	Output is correct
22	Correct	34 ms	35576 KB	Output is correct
23	Correct	33 ms	35576 KB	Output is correct
24	Correct	34 ms	35576 KB	Output is correct
25	Correct	35 ms	35576 KB	Output is correct
26	Correct	117 ms	45652 KB	Output is correct
27	Correct	174 ms	48604 KB	Output is correct
28	Correct	40 ms	35704 KB	Output is correct
29	Correct	35 ms	35576 KB	Output is correct
30	Correct	34 ms	35580 KB	Output is correct
31	Correct	169 ms	43100 KB	Output is correct
32	Correct	36 ms	35832 KB	Output is correct
33	Correct	155 ms	53624 KB	Output is correct
34	Correct	169 ms	47480 KB	Output is correct
35	Correct	36 ms	35832 KB	Output is correct
36	Correct	135 ms	42204 KB	Output is correct
37	Correct	36 ms	35832 KB	Output is correct
38	Correct	36 ms	35832 KB	Output is correct
39	Correct	122 ms	45552 KB	Output is correct
40	Correct	36 ms	36088 KB	Output is correct
41	Correct	127 ms	42972 KB	Output is correct
42	Correct	130 ms	44920 KB	Output is correct
43	Correct	34 ms	35576 KB	Output is correct
44	Correct	133 ms	54108 KB	Output is correct
45	Correct	145 ms	49784 KB	Output is correct
46	Correct	36 ms	35832 KB	Output is correct
47	Correct	37 ms	36088 KB	Output is correct

Subtask #4
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	124 ms	45604 KB	Output is correct
2	Correct	110 ms	42224 KB	Output is correct
3	Correct	36 ms	35832 KB	Output is correct
4	Correct	40 ms	35832 KB	Output is correct
5	Correct	34 ms	35576 KB	Output is correct
6	Correct	34 ms	35576 KB	Output is correct
7	Correct	36 ms	35832 KB	Output is correct
8	Correct	164 ms	45632 KB	Output is correct
9	Correct	36 ms	35832 KB	Output is correct
10	Correct	131 ms	43024 KB	Output is correct
11	Correct	34 ms	35576 KB	Output is correct
12	Correct	124 ms	40824 KB	Output is correct
13	Correct	140 ms	42744 KB	Output is correct
14	Correct	134 ms	41972 KB	Output is correct
15	Correct	126 ms	45588 KB	Output is correct
16	Correct	36 ms	35832 KB	Output is correct
17	Correct	35 ms	35576 KB	Output is correct
18	Correct	124 ms	43120 KB	Output is correct
19	Correct	164 ms	49216 KB	Output is correct
20	Correct	37 ms	35836 KB	Output is correct
21	Correct	34 ms	35576 KB	Output is correct
22	Correct	158 ms	46188 KB	Output is correct
23	Correct	36 ms	35832 KB	Output is correct
24	Correct	130 ms	41208 KB	Output is correct
25	Correct	141 ms	46708 KB	Output is correct
26	Correct	42 ms	35704 KB	Output is correct
27	Correct	44 ms	35832 KB	Output is correct
28	Correct	36 ms	35704 KB	Output is correct
29	Correct	36 ms	35832 KB	Output is correct
30	Correct	36 ms	35876 KB	Output is correct

Subtask #5
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	35 ms	35704 KB	Output is correct
2	Correct	34 ms	35576 KB	Output is correct
3	Correct	34 ms	35576 KB	Output is correct
4	Correct	34 ms	35576 KB	Output is correct
5	Correct	33 ms	35576 KB	Output is correct
6	Correct	33 ms	35576 KB	Output is correct
7	Correct	34 ms	35576 KB	Output is correct
8	Correct	35 ms	35676 KB	Output is correct
9	Correct	34 ms	35576 KB	Output is correct
10	Correct	34 ms	35548 KB	Output is correct
11	Correct	34 ms	35548 KB	Output is correct
12	Correct	34 ms	35576 KB	Output is correct
13	Correct	40 ms	35576 KB	Output is correct
14	Correct	92 ms	35704 KB	Output is correct
15	Correct	34 ms	35576 KB	Output is correct
16	Correct	33 ms	35576 KB	Output is correct
17	Correct	34 ms	35576 KB	Output is correct
18	Correct	34 ms	35576 KB	Output is correct
19	Correct	35 ms	35576 KB	Output is correct
20	Correct	34 ms	35508 KB	Output is correct
21	Correct	34 ms	35576 KB	Output is correct
22	Correct	34 ms	35576 KB	Output is correct
23	Correct	33 ms	35576 KB	Output is correct
24	Correct	34 ms	35576 KB	Output is correct
25	Correct	34 ms	35632 KB	Output is correct
26	Correct	35 ms	35836 KB	Output is correct
27	Correct	36 ms	35704 KB	Output is correct
28	Correct	36 ms	35960 KB	Output is correct
29	Correct	42 ms	35852 KB	Output is correct
30	Correct	38 ms	35960 KB	Output is correct
31	Correct	43 ms	35576 KB	Output is correct
32	Correct	37 ms	36088 KB	Output is correct
33	Correct	34 ms	35576 KB	Output is correct
34	Correct	36 ms	35832 KB	Output is correct
35	Correct	36 ms	35832 KB	Output is correct
36	Correct	35 ms	35832 KB	Output is correct
37	Correct	37 ms	35960 KB	Output is correct
38	Correct	34 ms	35576 KB	Output is correct
39	Correct	37 ms	36088 KB	Output is correct
40	Correct	36 ms	35832 KB	Output is correct
41	Correct	36 ms	35832 KB	Output is correct
42	Correct	37 ms	35960 KB	Output is correct
43	Correct	36 ms	36216 KB	Output is correct
44	Correct	34 ms	35580 KB	Output is correct
45	Correct	37 ms	35960 KB	Output is correct
46	Correct	37 ms	35836 KB	Output is correct
47	Correct	34 ms	35576 KB	Output is correct
48	Correct	36 ms	35832 KB	Output is correct
49	Correct	36 ms	35832 KB	Output is correct
50	Correct	37 ms	35944 KB	Output is correct
51	Correct	36 ms	35704 KB	Output is correct
52	Correct	44 ms	35832 KB	Output is correct
53	Correct	37 ms	35960 KB	Output is correct
54	Correct	37 ms	35960 KB	Output is correct
55	Correct	35 ms	35576 KB	Output is correct
56	Correct	117 ms	45652 KB	Output is correct
57	Correct	174 ms	48604 KB	Output is correct
58	Correct	40 ms	35704 KB	Output is correct
59	Correct	35 ms	35576 KB	Output is correct
60	Correct	34 ms	35580 KB	Output is correct
61	Correct	169 ms	43100 KB	Output is correct
62	Correct	36 ms	35832 KB	Output is correct
63	Correct	155 ms	53624 KB	Output is correct
64	Correct	169 ms	47480 KB	Output is correct
65	Correct	36 ms	35832 KB	Output is correct
66	Correct	135 ms	42204 KB	Output is correct
67	Correct	36 ms	35832 KB	Output is correct
68	Correct	36 ms	35832 KB	Output is correct
69	Correct	122 ms	45552 KB	Output is correct
70	Correct	36 ms	36088 KB	Output is correct
71	Correct	127 ms	42972 KB	Output is correct
72	Correct	130 ms	44920 KB	Output is correct
73	Correct	34 ms	35576 KB	Output is correct
74	Correct	133 ms	54108 KB	Output is correct
75	Correct	145 ms	49784 KB	Output is correct
76	Correct	36 ms	35832 KB	Output is correct
77	Correct	37 ms	36088 KB	Output is correct
78	Correct	124 ms	45604 KB	Output is correct
79	Correct	110 ms	42224 KB	Output is correct
80	Correct	36 ms	35832 KB	Output is correct
81	Correct	40 ms	35832 KB	Output is correct
82	Correct	34 ms	35576 KB	Output is correct
83	Correct	34 ms	35576 KB	Output is correct
84	Correct	36 ms	35832 KB	Output is correct
85	Correct	164 ms	45632 KB	Output is correct
86	Correct	36 ms	35832 KB	Output is correct
87	Correct	131 ms	43024 KB	Output is correct
88	Correct	34 ms	35576 KB	Output is correct
89	Correct	124 ms	40824 KB	Output is correct
90	Correct	140 ms	42744 KB	Output is correct
91	Correct	134 ms	41972 KB	Output is correct
92	Correct	126 ms	45588 KB	Output is correct
93	Correct	36 ms	35832 KB	Output is correct
94	Correct	35 ms	35576 KB	Output is correct
95	Correct	124 ms	43120 KB	Output is correct
96	Correct	164 ms	49216 KB	Output is correct
97	Correct	37 ms	35836 KB	Output is correct
98	Correct	34 ms	35576 KB	Output is correct
99	Correct	158 ms	46188 KB	Output is correct
100	Correct	36 ms	35832 KB	Output is correct
101	Correct	130 ms	41208 KB	Output is correct
102	Correct	141 ms	46708 KB	Output is correct
103	Correct	42 ms	35704 KB	Output is correct
104	Correct	44 ms	35832 KB	Output is correct
105	Correct	36 ms	35704 KB	Output is correct
106	Correct	36 ms	35832 KB	Output is correct
107	Correct	36 ms	35876 KB	Output is correct
108	Correct	921 ms	92352 KB	Output is correct
109	Correct	715 ms	94200 KB	Output is correct
110	Correct	712 ms	114552 KB	Output is correct
111	Correct	880 ms	109824 KB	Output is correct
112	Correct	830 ms	92140 KB	Output is correct
113	Correct	614 ms	74424 KB	Output is correct
114	Correct	686 ms	73168 KB	Output is correct
115	Correct	679 ms	73080 KB	Output is correct
116	Correct	1119 ms	123188 KB	Output is correct
117	Correct	743 ms	68164 KB	Output is correct
118	Correct	680 ms	73320 KB	Output is correct
119	Correct	730 ms	67872 KB	Output is correct
120	Correct	806 ms	93568 KB	Output is correct
121	Correct	747 ms	67800 KB	Output is correct
122	Correct	1342 ms	136944 KB	Output is correct
123	Correct	556 ms	70396 KB	Output is correct
124	Correct	796 ms	67608 KB	Output is correct

답안 #140841

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 24.0 / 24.0

Subtask #3 14.0 / 14.0

Subtask #4 22.0 / 22.0

Subtask #5 30.0 / 30.0

Subtask #1
10.0 / 10.0

Subtask #2
24.0 / 24.0

Subtask #3
14.0 / 14.0

Subtask #4
22.0 / 22.0

Subtask #5
30.0 / 30.0