oj.uz

답안 #825242

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
825242 2023-08-14T16:08:27 Z QwertyPi Political Development (BOI17_politicaldevelopment) C++14
100 / 100
 566 ms 28656 KB 
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 5e4 + 11;
const int MAXK = 10;

bool done[MAXN];
set<int> G[MAXN];

template<class T>
using min_priority_queue = priority_queue<T, vector<T>, greater<T>>;

int ans = 1;

bool can(const vector<int>& v){
	for(int i = 0; i < v.size(); i++){
		for(int j = i + 1; j < v.size(); j++){
			if(!G[v[i]].count(v[j])) return false;
		}
	}
	return true;
}

void check(const vector<int>& v){
	bool ok = can(v);
	if(ok) ans = max(ans, (int) v.size());
}

int32_t main(){
	int n, k; cin >> n >> k;
	for(int i = 0; i < n; i++){
		int d; cin >> d;
		for(int j = 0; j < d; j++){
			int v; cin >> v; G[i].insert(v);
		}
	}

	min_priority_queue<pair<int, int>> pq;
	for(int i = 1; i <= n; i++){
		pq.push({G[i].size(), i});
	}

	while(!pq.empty()){
		auto [d, v] = pq.top(); pq.pop();
		if(G[v].size() != d || done[v]) continue;
		done[v] = true;

		vector<int> adj {G[v].begin(), G[v].end()};
		for(int i = 0; i < (1 << d); i++){
			vector<int> ch {v};
			for(int j = 0; j < d; j++){
				if(i & (1 << j)) ch.push_back(adj[j]);
			}
			check(ch);
		}
		for(auto u : G[v]){
			if(G[u].count(v)) G[u].erase(v);
			pq.push({G[u].size(), u});
		}
	}
	cout << ans << endl;
}

Compilation message

politicaldevelopment.cpp: In function 'bool can(const std::vector<int>&)':
politicaldevelopment.cpp:16:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |  for(int i = 0; i < v.size(); i++){
      |                 ~~^~~~~~~~~~
politicaldevelopment.cpp:17:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |   for(int j = i + 1; j < v.size(); j++){
      |                      ~~^~~~~~~~~~
politicaldevelopment.cpp: In function 'int32_t main()':
politicaldevelopment.cpp:44:8: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   44 |   auto [d, v] = pq.top(); pq.pop();
      |        ^
politicaldevelopment.cpp:45:18: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'std::tuple_element<0, std::pair<int, int> >::type' {aka 'int'} [-Wsign-compare]
   45 |   if(G[v].size() != d || done[v]) continue;
      |      ~~~~~~~~~~~~^~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 6 ms 3204 KB Output is correct
4 Correct 6 ms 3284 KB Output is correct
5 Correct 6 ms 3284 KB Output is correct
6 Correct 6 ms 3212 KB Output is correct
7 Correct 6 ms 3180 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct
9 Correct 2 ms 2656 KB Output is correct
10 Correct 3 ms 2644 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 6 ms 3204 KB Output is correct
4 Correct 6 ms 3284 KB Output is correct
5 Correct 6 ms 3284 KB Output is correct
6 Correct 6 ms 3212 KB Output is correct
7 Correct 6 ms 3180 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct
9 Correct 2 ms 2656 KB Output is correct
10 Correct 3 ms 2644 KB Output is correct
11 Correct 7 ms 3260 KB Output is correct
12 Correct 6 ms 3176 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 6 ms 3284 KB Output is correct
15 Correct 1 ms 2664 KB Output is correct
16 Correct 6 ms 3284 KB Output is correct
17 Correct 1 ms 2664 KB Output is correct
18 Correct 6 ms 3184 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 4 ms 3032 KB Output is correct
21 Correct 4 ms 3028 KB Output is correct
22 Correct 2 ms 2772 KB Output is correct
23 Correct 7 ms 3412 KB Output is correct
24 Correct 2 ms 2772 KB Output is correct
25 Correct 7 ms 3432 KB Output is correct
26 Correct 7 ms 3308 KB Output is correct
27 Correct 6 ms 3284 KB Output is correct
28 Correct 7 ms 3312 KB Output is correct
29 Correct 7 ms 3284 KB Output is correct
30 Correct 8 ms 3412 KB Output is correct
31 Correct 8 ms 3412 KB Output is correct
32 Correct 8 ms 3476 KB Output is correct
33 Correct 8 ms 3356 KB Output is correct
34 Correct 8 ms 3412 KB Output is correct
35 Correct 5 ms 3028 KB Output is correct
36 Correct 4 ms 3028 KB Output is correct
37 Correct 5 ms 3028 KB Output is correct
38 Correct 3 ms 2900 KB Output is correct
39 Correct 3 ms 2900 KB Output is correct
40 Correct 11 ms 3820 KB Output is correct
41 Correct 3 ms 2900 KB Output is correct
42 Correct 14 ms 3820 KB Output is correct
43 Correct 11 ms 3876 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 2 ms 2656 KB Output is correct
9 Correct 1 ms 2664 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 555 ms 28572 KB Output is correct
12 Correct 1 ms 2660 KB Output is correct
13 Correct 566 ms 28644 KB Output is correct
14 Correct 1 ms 2644 KB Output is correct
15 Correct 531 ms 28656 KB Output is correct
16 Correct 539 ms 28604 KB Output is correct
17 Correct 528 ms 28612 KB Output is correct
18 Correct 561 ms 28648 KB Output is correct

Subtask #4
38.0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 6 ms 3204 KB Output is correct
4 Correct 6 ms 3284 KB Output is correct
5 Correct 6 ms 3284 KB Output is correct
6 Correct 6 ms 3212 KB Output is correct
7 Correct 6 ms 3180 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct
9 Correct 2 ms 2656 KB Output is correct
10 Correct 3 ms 2644 KB Output is correct
11 Correct 7 ms 3260 KB Output is correct
12 Correct 6 ms 3176 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 6 ms 3284 KB Output is correct
15 Correct 1 ms 2664 KB Output is correct
16 Correct 6 ms 3284 KB Output is correct
17 Correct 1 ms 2664 KB Output is correct
18 Correct 6 ms 3184 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 4 ms 3032 KB Output is correct
21 Correct 4 ms 3028 KB Output is correct
22 Correct 2 ms 2772 KB Output is correct
23 Correct 7 ms 3412 KB Output is correct
24 Correct 2 ms 2772 KB Output is correct
25 Correct 7 ms 3432 KB Output is correct
26 Correct 7 ms 3308 KB Output is correct
27 Correct 6 ms 3284 KB Output is correct
28 Correct 7 ms 3312 KB Output is correct
29 Correct 7 ms 3284 KB Output is correct
30 Correct 8 ms 3412 KB Output is correct
31 Correct 8 ms 3412 KB Output is correct
32 Correct 8 ms 3476 KB Output is correct
33 Correct 8 ms 3356 KB Output is correct
34 Correct 8 ms 3412 KB Output is correct
35 Correct 5 ms 3028 KB Output is correct
36 Correct 4 ms 3028 KB Output is correct
37 Correct 5 ms 3028 KB Output is correct
38 Correct 3 ms 2900 KB Output is correct
39 Correct 3 ms 2900 KB Output is correct
40 Correct 11 ms 3820 KB Output is correct
41 Correct 3 ms 2900 KB Output is correct
42 Correct 14 ms 3820 KB Output is correct
43 Correct 11 ms 3876 KB Output is correct
44 Correct 77 ms 4820 KB Output is correct
45 Correct 1 ms 2644 KB Output is correct
46 Correct 11 ms 3832 KB Output is correct
47 Correct 26 ms 5096 KB Output is correct
48 Correct 13 ms 3832 KB Output is correct
49 Correct 27 ms 5104 KB Output is correct
50 Correct 28 ms 5080 KB Output is correct
51 Correct 291 ms 7416 KB Output is correct
52 Correct 6 ms 3288 KB Output is correct
53 Correct 473 ms 7888 KB Output is correct
54 Correct 537 ms 7920 KB Output is correct
55 Correct 6 ms 3284 KB Output is correct
56 Correct 6 ms 3224 KB Output is correct
57 Correct 3 ms 2660 KB Output is correct
58 Correct 485 ms 7856 KB Output is correct
59 Correct 11 ms 3796 KB Output is correct
60 Correct 6 ms 3284 KB Output is correct
61 Correct 11 ms 3812 KB Output is correct
62 Correct 11 ms 3800 KB Output is correct
63 Correct 79 ms 4816 KB Output is correct
64 Correct 41 ms 4564 KB Output is correct
65 Correct 11 ms 3668 KB Output is correct
66 Correct 12 ms 3808 KB Output is correct
67 Correct 62 ms 5532 KB Output is correct
68 Correct 42 ms 4564 KB Output is correct
69 Correct 10 ms 3692 KB Output is correct
70 Correct 24 ms 4716 KB Output is correct
71 Correct 60 ms 5476 KB Output is correct
72 Correct 48 ms 5384 KB Output is correct
73 Correct 6 ms 3284 KB Output is correct
74 Correct 25 ms 4728 KB Output is correct
75 Correct 50 ms 5428 KB Output is correct
76 Correct 18 ms 4180 KB Output is correct
77 Correct 104 ms 5960 KB Output is correct
78 Correct 6 ms 3264 KB Output is correct
79 Correct 52 ms 4300 KB Output is correct
80 Correct 15 ms 4240 KB Output is correct
81 Correct 103 ms 5976 KB Output is correct
82 Correct 3 ms 2900 KB Output is correct
83 Correct 52 ms 4316 KB Output is correct
84 Correct 48 ms 5348 KB Output is correct
85 Correct 4 ms 2900 KB Output is correct
86 Correct 47 ms 5304 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 6 ms 3204 KB Output is correct
4 Correct 6 ms 3284 KB Output is correct
5 Correct 6 ms 3284 KB Output is correct
6 Correct 6 ms 3212 KB Output is correct
7 Correct 6 ms 3180 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct
9 Correct 2 ms 2656 KB Output is correct
10 Correct 3 ms 2644 KB Output is correct
11 Correct 7 ms 3260 KB Output is correct
12 Correct 6 ms 3176 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 6 ms 3284 KB Output is correct
15 Correct 1 ms 2664 KB Output is correct
16 Correct 6 ms 3284 KB Output is correct
17 Correct 1 ms 2664 KB Output is correct
18 Correct 6 ms 3184 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 4 ms 3032 KB Output is correct
21 Correct 4 ms 3028 KB Output is correct
22 Correct 2 ms 2772 KB Output is correct
23 Correct 7 ms 3412 KB Output is correct
24 Correct 2 ms 2772 KB Output is correct
25 Correct 7 ms 3432 KB Output is correct
26 Correct 7 ms 3308 KB Output is correct
27 Correct 6 ms 3284 KB Output is correct
28 Correct 7 ms 3312 KB Output is correct
29 Correct 7 ms 3284 KB Output is correct
30 Correct 8 ms 3412 KB Output is correct
31 Correct 8 ms 3412 KB Output is correct
32 Correct 8 ms 3476 KB Output is correct
33 Correct 8 ms 3356 KB Output is correct
34 Correct 8 ms 3412 KB Output is correct
35 Correct 5 ms 3028 KB Output is correct
36 Correct 4 ms 3028 KB Output is correct
37 Correct 5 ms 3028 KB Output is correct
38 Correct 3 ms 2900 KB Output is correct
39 Correct 3 ms 2900 KB Output is correct
40 Correct 11 ms 3820 KB Output is correct
41 Correct 3 ms 2900 KB Output is correct
42 Correct 14 ms 3820 KB Output is correct
43 Correct 11 ms 3876 KB Output is correct
44 Correct 1 ms 2644 KB Output is correct
45 Correct 196 ms 20708 KB Output is correct
46 Correct 89 ms 11192 KB Output is correct
47 Correct 224 ms 20712 KB Output is correct
48 Correct 185 ms 20720 KB Output is correct
49 Correct 55 ms 8572 KB Output is correct
50 Correct 264 ms 25912 KB Output is correct
51 Correct 201 ms 20644 KB Output is correct
52 Correct 54 ms 8572 KB Output is correct
53 Correct 55 ms 8656 KB Output is correct
54 Correct 12 ms 3408 KB Output is correct
55 Correct 314 ms 25996 KB Output is correct
56 Correct 32 ms 5980 KB Output is correct
57 Correct 54 ms 8644 KB Output is correct
58 Correct 82 ms 11220 KB Output is correct
59 Correct 43 ms 5988 KB Output is correct
60 Correct 33 ms 6004 KB Output is correct
61 Correct 98 ms 11208 KB Output is correct
62 Correct 70 ms 8620 KB Output is correct
63 Correct 143 ms 13080 KB Output is correct
64 Correct 34 ms 6000 KB Output is correct
65 Correct 166 ms 15720 KB Output is correct
66 Correct 68 ms 8552 KB Output is correct
67 Correct 121 ms 13152 KB Output is correct
68 Correct 146 ms 15028 KB Output is correct
69 Correct 156 ms 15852 KB Output is correct
70 Correct 62 ms 8580 KB Output is correct
71 Correct 155 ms 15156 KB Output is correct
72 Correct 132 ms 12700 KB Output is correct
73 Correct 166 ms 17340 KB Output is correct
74 Correct 70 ms 8616 KB Output is correct
75 Correct 63 ms 8376 KB Output is correct
76 Correct 124 ms 12676 KB Output is correct
77 Correct 187 ms 17428 KB Output is correct
78 Correct 89 ms 10048 KB Output is correct
79 Correct 59 ms 8436 KB Output is correct
80 Correct 30 ms 5504 KB Output is correct
81 Correct 83 ms 10052 KB Output is correct
82 Correct 118 ms 14448 KB Output is correct
83 Correct 25 ms 5540 KB Output is correct
84 Correct 110 ms 14468 KB Output is correct