oj.uz

Submission #864714

# Submission time Handle Problem Language Result Execution time Memory
864714 2023-10-23T13:34:22 Z iskhakkutbilim Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 247 ms 314048 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ff first
#define ss second
#define all(a) a.begin(), a.end()
const int N = 50000;
int n, k;
int deg[N];
vector<int> g[N];
bitset<N> yes[N];
main(){
   ios::sync_with_stdio(0);
   cin.tie(0); cout.tie(0);
	cin >> n >> k;
	priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int> > > pq;
	for(int i = 0;i < n; i++){
		int sz; cin >> sz;
		deg[i] = sz;
		pq.push({deg[i], i});
		yes[i][i] = 1;
		for(int j = 0;j < sz; j++){
			int x; cin >> x;
			yes[i][x] = 1;
			g[i].push_back(x);
		}
	}	
	int ans = 1;
	vector<int> used(n, 0);
	while(true){
		while(!pq.empty() && used[pq.top().ss]) pq.pop();
		if(pq.empty()) break;
		int v = pq.top().ss;
		pq.pop();
		used[v] = 1;
		vector<int> vert = {v};
		for(int to : g[v]){
			if(used[to]) continue;
			deg[to]--;
			pq.push({deg[to], to});
			vert.push_back(to);
		}
		
		for(int mask = 1; mask < (1<<vert.size()); mask++){
			int ok = 1, cnt = 0;
			for(int i = 0;i < vert.size() && ok; i++){
				if(!(mask & (1<<i))) continue;
				cnt++;
				for(int j = 0;j < vert.size(); j++){
					if(mask & (1<<j)){
						if(yes[vert[i]][vert[j]] == 0){
							ok = 0;
							break;
						}
					}
				}
			}
			if(ok){
				if(cnt > k) assert(false);
				ans = max(ans, cnt);
			}
		}
	}
	cout << ans;
	return 0;
}

Compilation message

politicaldevelopment.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main(){
      | ^~~~
politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:46:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |    for(int i = 0;i < vert.size() && ok; i++){
      |                  ~~^~~~~~~~~~~~~
politicaldevelopment.cpp:49:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |     for(int j = 0;j < vert.size(); j++){
      |                   ~~^~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1624 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 6 ms 32576 KB Output is correct
4 Correct 6 ms 32604 KB Output is correct
5 Correct 6 ms 32808 KB Output is correct
6 Correct 6 ms 32600 KB Output is correct
7 Correct 6 ms 32604 KB Output is correct
8 Correct 4 ms 32604 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 4 ms 32604 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1624 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 6 ms 32576 KB Output is correct
4 Correct 6 ms 32604 KB Output is correct
5 Correct 6 ms 32808 KB Output is correct
6 Correct 6 ms 32600 KB Output is correct
7 Correct 6 ms 32604 KB Output is correct
8 Correct 4 ms 32604 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 4 ms 32604 KB Output is correct
11 Correct 6 ms 32604 KB Output is correct
12 Correct 6 ms 32604 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 6 ms 32792 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 6 ms 32600 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 6 ms 32604 KB Output is correct
19 Correct 4 ms 32604 KB Output is correct
20 Correct 5 ms 32604 KB Output is correct
21 Correct 5 ms 32604 KB Output is correct
22 Correct 4 ms 32604 KB Output is correct
23 Correct 7 ms 32604 KB Output is correct
24 Correct 4 ms 32604 KB Output is correct
25 Correct 7 ms 32564 KB Output is correct
26 Correct 7 ms 32604 KB Output is correct
27 Correct 7 ms 32604 KB Output is correct
28 Correct 7 ms 32604 KB Output is correct
29 Correct 7 ms 32604 KB Output is correct
30 Correct 7 ms 32604 KB Output is correct
31 Correct 8 ms 32604 KB Output is correct
32 Correct 9 ms 32860 KB Output is correct
33 Correct 7 ms 32604 KB Output is correct
34 Correct 7 ms 32604 KB Output is correct
35 Correct 4 ms 18268 KB Output is correct
36 Correct 4 ms 18268 KB Output is correct
37 Correct 4 ms 18268 KB Output is correct
38 Correct 2 ms 9816 KB Output is correct
39 Correct 2 ms 9820 KB Output is correct
40 Correct 8 ms 32860 KB Output is correct
41 Correct 3 ms 10072 KB Output is correct
42 Correct 9 ms 32860 KB Output is correct
43 Correct 9 ms 32856 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 32600 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 1 ms 1628 KB Output is correct
4 Correct 1 ms 1828 KB Output is correct
5 Correct 1 ms 1628 KB Output is correct
6 Correct 1 ms 1624 KB Output is correct
7 Correct 1 ms 1624 KB Output is correct
8 Correct 1 ms 1628 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1628 KB Output is correct
11 Correct 241 ms 313864 KB Output is correct
12 Correct 1 ms 1628 KB Output is correct
13 Correct 247 ms 313824 KB Output is correct
14 Correct 1 ms 1624 KB Output is correct
15 Correct 235 ms 313952 KB Output is correct
16 Correct 241 ms 314048 KB Output is correct
17 Correct 233 ms 313832 KB Output is correct
18 Correct 235 ms 313916 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1624 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 6 ms 32576 KB Output is correct
4 Correct 6 ms 32604 KB Output is correct
5 Correct 6 ms 32808 KB Output is correct
6 Correct 6 ms 32600 KB Output is correct
7 Correct 6 ms 32604 KB Output is correct
8 Correct 4 ms 32604 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 4 ms 32604 KB Output is correct
11 Correct 6 ms 32604 KB Output is correct
12 Correct 6 ms 32604 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 6 ms 32792 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 6 ms 32600 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 6 ms 32604 KB Output is correct
19 Correct 4 ms 32604 KB Output is correct
20 Correct 5 ms 32604 KB Output is correct
21 Correct 5 ms 32604 KB Output is correct
22 Correct 4 ms 32604 KB Output is correct
23 Correct 7 ms 32604 KB Output is correct
24 Correct 4 ms 32604 KB Output is correct
25 Correct 7 ms 32564 KB Output is correct
26 Correct 7 ms 32604 KB Output is correct
27 Correct 7 ms 32604 KB Output is correct
28 Correct 7 ms 32604 KB Output is correct
29 Correct 7 ms 32604 KB Output is correct
30 Correct 7 ms 32604 KB Output is correct
31 Correct 8 ms 32604 KB Output is correct
32 Correct 9 ms 32860 KB Output is correct
33 Correct 7 ms 32604 KB Output is correct
34 Correct 7 ms 32604 KB Output is correct
35 Correct 4 ms 18268 KB Output is correct
36 Correct 4 ms 18268 KB Output is correct
37 Correct 4 ms 18268 KB Output is correct
38 Correct 2 ms 9816 KB Output is correct
39 Correct 2 ms 9820 KB Output is correct
40 Correct 8 ms 32860 KB Output is correct
41 Correct 3 ms 10072 KB Output is correct
42 Correct 9 ms 32860 KB Output is correct
43 Correct 9 ms 32856 KB Output is correct
44 Correct 91 ms 32856 KB Output is correct
45 Correct 1 ms 1628 KB Output is correct
46 Correct 9 ms 32860 KB Output is correct
47 Correct 15 ms 33116 KB Output is correct
48 Correct 9 ms 32860 KB Output is correct
49 Correct 14 ms 33244 KB Output is correct
50 Correct 14 ms 33116 KB Output is correct
51 Correct 63 ms 33680 KB Output is correct
52 Correct 6 ms 32604 KB Output is correct
53 Correct 128 ms 33776 KB Output is correct
54 Correct 119 ms 33744 KB Output is correct
55 Correct 6 ms 32604 KB Output is correct
56 Correct 6 ms 32604 KB Output is correct
57 Correct 4 ms 32604 KB Output is correct
58 Correct 112 ms 33752 KB Output is correct
59 Correct 9 ms 32604 KB Output is correct
60 Correct 6 ms 32604 KB Output is correct
61 Correct 9 ms 32604 KB Output is correct
62 Correct 9 ms 32604 KB Output is correct
63 Correct 90 ms 32860 KB Output is correct
64 Correct 40 ms 32848 KB Output is correct
65 Correct 8 ms 32904 KB Output is correct
66 Correct 9 ms 32788 KB Output is correct
67 Correct 39 ms 33116 KB Output is correct
68 Correct 39 ms 32860 KB Output is correct
69 Correct 8 ms 32860 KB Output is correct
70 Correct 13 ms 33016 KB Output is correct
71 Correct 38 ms 33116 KB Output is correct
72 Correct 24 ms 33076 KB Output is correct
73 Correct 7 ms 32604 KB Output is correct
74 Correct 13 ms 32860 KB Output is correct
75 Correct 24 ms 33080 KB Output is correct
76 Correct 10 ms 32860 KB Output is correct
77 Correct 36 ms 33292 KB Output is correct
78 Correct 6 ms 32600 KB Output is correct
79 Correct 15 ms 18608 KB Output is correct
80 Correct 10 ms 32860 KB Output is correct
81 Correct 33 ms 33220 KB Output is correct
82 Correct 3 ms 9816 KB Output is correct
83 Correct 16 ms 18524 KB Output is correct
84 Correct 18 ms 33240 KB Output is correct
85 Correct 2 ms 9820 KB Output is correct
86 Correct 18 ms 33116 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1624 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 6 ms 32576 KB Output is correct
4 Correct 6 ms 32604 KB Output is correct
5 Correct 6 ms 32808 KB Output is correct
6 Correct 6 ms 32600 KB Output is correct
7 Correct 6 ms 32604 KB Output is correct
8 Correct 4 ms 32604 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 4 ms 32604 KB Output is correct
11 Correct 6 ms 32604 KB Output is correct
12 Correct 6 ms 32604 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 6 ms 32792 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 6 ms 32600 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 6 ms 32604 KB Output is correct
19 Correct 4 ms 32604 KB Output is correct
20 Correct 5 ms 32604 KB Output is correct
21 Correct 5 ms 32604 KB Output is correct
22 Correct 4 ms 32604 KB Output is correct
23 Correct 7 ms 32604 KB Output is correct
24 Correct 4 ms 32604 KB Output is correct
25 Correct 7 ms 32564 KB Output is correct
26 Correct 7 ms 32604 KB Output is correct
27 Correct 7 ms 32604 KB Output is correct
28 Correct 7 ms 32604 KB Output is correct
29 Correct 7 ms 32604 KB Output is correct
30 Correct 7 ms 32604 KB Output is correct
31 Correct 8 ms 32604 KB Output is correct
32 Correct 9 ms 32860 KB Output is correct
33 Correct 7 ms 32604 KB Output is correct
34 Correct 7 ms 32604 KB Output is correct
35 Correct 4 ms 18268 KB Output is correct
36 Correct 4 ms 18268 KB Output is correct
37 Correct 4 ms 18268 KB Output is correct
38 Correct 2 ms 9816 KB Output is correct
39 Correct 2 ms 9820 KB Output is correct
40 Correct 8 ms 32860 KB Output is correct
41 Correct 3 ms 10072 KB Output is correct
42 Correct 9 ms 32860 KB Output is correct
43 Correct 9 ms 32856 KB Output is correct
44 Correct 1 ms 1628 KB Output is correct
45 Correct 134 ms 312500 KB Output is correct
46 Correct 76 ms 310224 KB Output is correct
47 Correct 146 ms 312256 KB Output is correct
48 Correct 130 ms 312432 KB Output is correct
49 Correct 55 ms 310096 KB Output is correct
50 Correct 127 ms 312768 KB Output is correct
51 Correct 133 ms 312420 KB Output is correct
52 Correct 59 ms 310224 KB Output is correct
53 Correct 54 ms 310028 KB Output is correct
54 Correct 36 ms 308180 KB Output is correct
55 Correct 123 ms 312516 KB Output is correct
56 Correct 50 ms 309960 KB Output is correct
57 Correct 60 ms 310216 KB Output is correct
58 Correct 81 ms 309956 KB Output is correct
59 Correct 53 ms 309956 KB Output is correct
60 Correct 51 ms 309960 KB Output is correct
61 Correct 74 ms 309992 KB Output is correct
62 Correct 61 ms 309784 KB Output is correct
63 Correct 91 ms 310732 KB Output is correct
64 Correct 53 ms 310156 KB Output is correct
65 Correct 103 ms 311092 KB Output is correct
66 Correct 63 ms 309964 KB Output is correct
67 Correct 88 ms 310732 KB Output is correct
68 Correct 100 ms 310792 KB Output is correct
69 Correct 112 ms 311376 KB Output is correct
70 Correct 65 ms 310216 KB Output is correct
71 Correct 104 ms 310980 KB Output is correct
72 Correct 83 ms 310732 KB Output is correct
73 Correct 121 ms 310988 KB Output is correct
74 Correct 62 ms 309968 KB Output is correct
75 Correct 47 ms 157256 KB Output is correct
76 Correct 84 ms 310892 KB Output is correct
77 Correct 114 ms 311176 KB Output is correct
78 Correct 57 ms 157388 KB Output is correct
79 Correct 47 ms 157136 KB Output is correct
80 Correct 20 ms 80476 KB Output is correct
81 Correct 60 ms 157360 KB Output is correct
82 Correct 91 ms 310604 KB Output is correct
83 Correct 21 ms 80472 KB Output is correct
84 Correct 92 ms 310616 KB Output is correct