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답안 #403302

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
403302 2021-05-13T02:49:25 Z oolimry 족보 (KOI18_family) C++17
100 / 100
 525 ms 59784 KB 
#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
using namespace std;
typedef pair<int,int> ii;

int n1, n2, K; 
vector<int> child[2][300005];
int num[2][300005];
int rep[2][300005];
struct check{ int num, u, t; };
vector<check> stuff;

void dfs(int t, int u){
	if(num[t][u] != 0) return;
	if(u != 0 && u <= K){
		num[t][u] = 1;
		rep[t][u] = u;
	}
	else{
		for(int v : child[t][u]){
			dfs(t, v);
			num[t][u] += num[t][v];
			rep[t][u] = rep[t][v];
		}
		if(num[t][u] > 1) stuff.push_back({num[t][u], u, t});
		///idk why child[t][u].size() > 1 is needed .-.
	}
}

int p[300005];
int sz[300005];
int findSet(int u){
	if(p[u] == u) return u;
	else return p[u] = findSet(p[u]);
}
void unionSet(int u, int v){
	u = findSet(u), v = findSet(v);
	if(u == v) return;
	if(u&1) swap(u,v);
	p[u] = v;
	sz[v] += sz[u];
}
int getSz(int u){
	return sz[findSet(u)];
}

int main(){
	//freopen("i.txt","r",stdin);
	cin >> n1 >> n2 >> K;
	
	for(int i = 1;i <= n1;i++){
		int a; cin >> a;
		child[0][a].push_back(i);
	}
	for(int i = 1;i <= n2;i++){
		int a; cin >> a;
		child[1][a].push_back(i);
	}

	dfs(0, 0); dfs(1, 0);
	
	for(int i = 1;i <= K;i++){
		p[i] = i;
		sz[i] = 1;
	}
		
	sort(all(stuff), [&](check a, check b){ return a.num < b.num; });
	
	for(check C : stuff){
		
		for(int v : child[C.t][C.u]){
			unionSet(rep[C.t][C.u], rep[C.t][v]);
		} 
		if((int) child[C.t][C.u].size() <= 1) continue;
		if(getSz(rep[C.t][C.u]) != C.num){
			cout << "NO";
			return 0;
		}
	}
	
	
	cout << "YES";
}

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14428 KB Output is correct
3 Correct 8 ms 14388 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14416 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14404 KB Output is correct
10 Correct 8 ms 14328 KB Output is correct
11 Correct 9 ms 14348 KB Output is correct
12 Correct 8 ms 14412 KB Output is correct
13 Correct 8 ms 14356 KB Output is correct
14 Correct 9 ms 14412 KB Output is correct
15 Correct 9 ms 14412 KB Output is correct
16 Correct 9 ms 14440 KB Output is correct
17 Correct 9 ms 14428 KB Output is correct
18 Correct 9 ms 14412 KB Output is correct
19 Correct 10 ms 14412 KB Output is correct
20 Correct 9 ms 14412 KB Output is correct
21 Correct 9 ms 14412 KB Output is correct
22 Correct 8 ms 14408 KB Output is correct
23 Correct 8 ms 14332 KB Output is correct
24 Correct 9 ms 14352 KB Output is correct
25 Correct 8 ms 14412 KB Output is correct
26 Correct 8 ms 14412 KB Output is correct
27 Correct 9 ms 14332 KB Output is correct
28 Correct 8 ms 14344 KB Output is correct
29 Correct 9 ms 14368 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct

Subtask #2
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14428 KB Output is correct
3 Correct 8 ms 14388 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14416 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14404 KB Output is correct
10 Correct 8 ms 14328 KB Output is correct
11 Correct 9 ms 14348 KB Output is correct
12 Correct 8 ms 14412 KB Output is correct
13 Correct 8 ms 14356 KB Output is correct
14 Correct 9 ms 14412 KB Output is correct
15 Correct 9 ms 14412 KB Output is correct
16 Correct 9 ms 14440 KB Output is correct
17 Correct 9 ms 14428 KB Output is correct
18 Correct 9 ms 14412 KB Output is correct
19 Correct 10 ms 14412 KB Output is correct
20 Correct 9 ms 14412 KB Output is correct
21 Correct 9 ms 14412 KB Output is correct
22 Correct 8 ms 14408 KB Output is correct
23 Correct 8 ms 14332 KB Output is correct
24 Correct 9 ms 14352 KB Output is correct
25 Correct 8 ms 14412 KB Output is correct
26 Correct 8 ms 14412 KB Output is correct
27 Correct 9 ms 14332 KB Output is correct
28 Correct 8 ms 14344 KB Output is correct
29 Correct 9 ms 14368 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct
31 Correct 9 ms 14412 KB Output is correct
32 Correct 8 ms 14412 KB Output is correct
33 Correct 9 ms 14412 KB Output is correct
34 Correct 8 ms 14412 KB Output is correct
35 Correct 8 ms 14412 KB Output is correct
36 Correct 9 ms 14392 KB Output is correct
37 Correct 10 ms 14440 KB Output is correct
38 Correct 9 ms 14412 KB Output is correct
39 Correct 9 ms 14412 KB Output is correct
40 Correct 9 ms 14412 KB Output is correct
41 Correct 9 ms 14412 KB Output is correct
42 Correct 9 ms 14412 KB Output is correct
43 Correct 9 ms 14428 KB Output is correct
44 Correct 8 ms 14396 KB Output is correct
45 Correct 9 ms 14428 KB Output is correct
46 Correct 9 ms 14412 KB Output is correct
47 Correct 10 ms 14340 KB Output is correct
48 Correct 9 ms 14412 KB Output is correct
49 Correct 9 ms 14412 KB Output is correct
50 Correct 9 ms 14372 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14428 KB Output is correct
3 Correct 8 ms 14388 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14416 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14404 KB Output is correct
10 Correct 8 ms 14328 KB Output is correct
11 Correct 9 ms 14348 KB Output is correct
12 Correct 8 ms 14412 KB Output is correct
13 Correct 8 ms 14356 KB Output is correct
14 Correct 9 ms 14412 KB Output is correct
15 Correct 9 ms 14412 KB Output is correct
16 Correct 9 ms 14440 KB Output is correct
17 Correct 9 ms 14428 KB Output is correct
18 Correct 9 ms 14412 KB Output is correct
19 Correct 10 ms 14412 KB Output is correct
20 Correct 9 ms 14412 KB Output is correct
21 Correct 9 ms 14412 KB Output is correct
22 Correct 8 ms 14408 KB Output is correct
23 Correct 8 ms 14332 KB Output is correct
24 Correct 9 ms 14352 KB Output is correct
25 Correct 8 ms 14412 KB Output is correct
26 Correct 8 ms 14412 KB Output is correct
27 Correct 9 ms 14332 KB Output is correct
28 Correct 8 ms 14344 KB Output is correct
29 Correct 9 ms 14368 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct
31 Correct 9 ms 14412 KB Output is correct
32 Correct 8 ms 14412 KB Output is correct
33 Correct 9 ms 14412 KB Output is correct
34 Correct 8 ms 14412 KB Output is correct
35 Correct 8 ms 14412 KB Output is correct
36 Correct 9 ms 14392 KB Output is correct
37 Correct 10 ms 14440 KB Output is correct
38 Correct 9 ms 14412 KB Output is correct
39 Correct 9 ms 14412 KB Output is correct
40 Correct 9 ms 14412 KB Output is correct
41 Correct 9 ms 14412 KB Output is correct
42 Correct 9 ms 14412 KB Output is correct
43 Correct 9 ms 14428 KB Output is correct
44 Correct 8 ms 14396 KB Output is correct
45 Correct 9 ms 14428 KB Output is correct
46 Correct 9 ms 14412 KB Output is correct
47 Correct 10 ms 14340 KB Output is correct
48 Correct 9 ms 14412 KB Output is correct
49 Correct 9 ms 14412 KB Output is correct
50 Correct 9 ms 14372 KB Output is correct
51 Correct 12 ms 14540 KB Output is correct
52 Correct 13 ms 14688 KB Output is correct
53 Correct 13 ms 14744 KB Output is correct
54 Correct 13 ms 14656 KB Output is correct
55 Correct 12 ms 14540 KB Output is correct
56 Correct 12 ms 14540 KB Output is correct
57 Correct 12 ms 14556 KB Output is correct
58 Correct 12 ms 14540 KB Output is correct
59 Correct 12 ms 14588 KB Output is correct
60 Correct 13 ms 14552 KB Output is correct
61 Correct 14 ms 15144 KB Output is correct
62 Correct 14 ms 15096 KB Output is correct
63 Correct 12 ms 14484 KB Output is correct
64 Correct 11 ms 14532 KB Output is correct
65 Correct 9 ms 14412 KB Output is correct
66 Correct 13 ms 14632 KB Output is correct
67 Correct 12 ms 14540 KB Output is correct
68 Correct 11 ms 14668 KB Output is correct
69 Correct 13 ms 14668 KB Output is correct
70 Correct 12 ms 14540 KB Output is correct

Subtask #4
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 14412 KB Output is correct
2 Correct 8 ms 14428 KB Output is correct
3 Correct 8 ms 14388 KB Output is correct
4 Correct 8 ms 14412 KB Output is correct
5 Correct 8 ms 14416 KB Output is correct
6 Correct 8 ms 14412 KB Output is correct
7 Correct 8 ms 14412 KB Output is correct
8 Correct 8 ms 14412 KB Output is correct
9 Correct 8 ms 14404 KB Output is correct
10 Correct 8 ms 14328 KB Output is correct
11 Correct 9 ms 14348 KB Output is correct
12 Correct 8 ms 14412 KB Output is correct
13 Correct 8 ms 14356 KB Output is correct
14 Correct 9 ms 14412 KB Output is correct
15 Correct 9 ms 14412 KB Output is correct
16 Correct 9 ms 14440 KB Output is correct
17 Correct 9 ms 14428 KB Output is correct
18 Correct 9 ms 14412 KB Output is correct
19 Correct 10 ms 14412 KB Output is correct
20 Correct 9 ms 14412 KB Output is correct
21 Correct 9 ms 14412 KB Output is correct
22 Correct 8 ms 14408 KB Output is correct
23 Correct 8 ms 14332 KB Output is correct
24 Correct 9 ms 14352 KB Output is correct
25 Correct 8 ms 14412 KB Output is correct
26 Correct 8 ms 14412 KB Output is correct
27 Correct 9 ms 14332 KB Output is correct
28 Correct 8 ms 14344 KB Output is correct
29 Correct 9 ms 14368 KB Output is correct
30 Correct 9 ms 14412 KB Output is correct
31 Correct 9 ms 14412 KB Output is correct
32 Correct 8 ms 14412 KB Output is correct
33 Correct 9 ms 14412 KB Output is correct
34 Correct 8 ms 14412 KB Output is correct
35 Correct 8 ms 14412 KB Output is correct
36 Correct 9 ms 14392 KB Output is correct
37 Correct 10 ms 14440 KB Output is correct
38 Correct 9 ms 14412 KB Output is correct
39 Correct 9 ms 14412 KB Output is correct
40 Correct 9 ms 14412 KB Output is correct
41 Correct 9 ms 14412 KB Output is correct
42 Correct 9 ms 14412 KB Output is correct
43 Correct 9 ms 14428 KB Output is correct
44 Correct 8 ms 14396 KB Output is correct
45 Correct 9 ms 14428 KB Output is correct
46 Correct 9 ms 14412 KB Output is correct
47 Correct 10 ms 14340 KB Output is correct
48 Correct 9 ms 14412 KB Output is correct
49 Correct 9 ms 14412 KB Output is correct
50 Correct 9 ms 14372 KB Output is correct
51 Correct 12 ms 14540 KB Output is correct
52 Correct 13 ms 14688 KB Output is correct
53 Correct 13 ms 14744 KB Output is correct
54 Correct 13 ms 14656 KB Output is correct
55 Correct 12 ms 14540 KB Output is correct
56 Correct 12 ms 14540 KB Output is correct
57 Correct 12 ms 14556 KB Output is correct
58 Correct 12 ms 14540 KB Output is correct
59 Correct 12 ms 14588 KB Output is correct
60 Correct 13 ms 14552 KB Output is correct
61 Correct 14 ms 15144 KB Output is correct
62 Correct 14 ms 15096 KB Output is correct
63 Correct 12 ms 14484 KB Output is correct
64 Correct 11 ms 14532 KB Output is correct
65 Correct 9 ms 14412 KB Output is correct
66 Correct 13 ms 14632 KB Output is correct
67 Correct 12 ms 14540 KB Output is correct
68 Correct 11 ms 14668 KB Output is correct
69 Correct 13 ms 14668 KB Output is correct
70 Correct 12 ms 14540 KB Output is correct
71 Correct 56 ms 18244 KB Output is correct
72 Correct 59 ms 17392 KB Output is correct
73 Correct 37 ms 17244 KB Output is correct
74 Correct 62 ms 21188 KB Output is correct
75 Correct 65 ms 20664 KB Output is correct
76 Correct 475 ms 59784 KB Output is correct
77 Correct 525 ms 45740 KB Output is correct
78 Correct 336 ms 27572 KB Output is correct
79 Correct 435 ms 51172 KB Output is correct
80 Correct 476 ms 44008 KB Output is correct
81 Correct 53 ms 18272 KB Output is correct
82 Correct 57 ms 17364 KB Output is correct
83 Correct 35 ms 17280 KB Output is correct
84 Correct 60 ms 20884 KB Output is correct
85 Correct 64 ms 20672 KB Output is correct
86 Correct 417 ms 53476 KB Output is correct
87 Correct 409 ms 53520 KB Output is correct
88 Correct 307 ms 27576 KB Output is correct
89 Correct 408 ms 49652 KB Output is correct
90 Correct 420 ms 44332 KB Output is correct