oj.uz

Submission #864715

# Submission time Handle Problem Language Result Execution time Memory
864715 2023-10-23T13:36:03 Z iskhakkutbilim Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 239 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.top().ff != deg[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 32652 KB Output is correct
4 Correct 6 ms 32604 KB Output is correct
5 Correct 6 ms 32604 KB Output is correct
6 Correct 6 ms 32604 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 32652 KB Output is correct
4 Correct 6 ms 32604 KB Output is correct
5 Correct 6 ms 32604 KB Output is correct
6 Correct 6 ms 32604 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 32600 KB Output is correct
12 Correct 6 ms 32600 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 6 ms 32604 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 6 ms 32604 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 6 ms 32652 KB Output is correct
19 Correct 4 ms 32604 KB Output is correct
20 Correct 6 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 32604 KB Output is correct
26 Correct 7 ms 32604 KB Output is correct
27 Correct 7 ms 32600 KB Output is correct
28 Correct 7 ms 32604 KB Output is correct
29 Correct 6 ms 32604 KB Output is correct
30 Correct 7 ms 32604 KB Output is correct
31 Correct 7 ms 32808 KB Output is correct
32 Correct 7 ms 32604 KB Output is correct
33 Correct 7 ms 32660 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 9820 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 11 ms 33016 KB Output is correct
41 Correct 2 ms 9820 KB Output is correct
42 Correct 9 ms 32792 KB Output is correct
43 Correct 8 ms 32860 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 32604 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 1628 KB Output is correct
5 Correct 1 ms 1628 KB Output is correct
6 Correct 1 ms 1628 KB Output is correct
7 Correct 1 ms 1672 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 238 ms 313924 KB Output is correct
12 Correct 1 ms 1624 KB Output is correct
13 Correct 235 ms 313796 KB Output is correct
14 Correct 1 ms 1628 KB Output is correct
15 Correct 239 ms 313916 KB Output is correct
16 Correct 238 ms 313876 KB Output is correct
17 Correct 233 ms 313804 KB Output is correct
18 Correct 238 ms 314048 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 32652 KB Output is correct
4 Correct 6 ms 32604 KB Output is correct
5 Correct 6 ms 32604 KB Output is correct
6 Correct 6 ms 32604 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 32600 KB Output is correct
12 Correct 6 ms 32600 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 6 ms 32604 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 6 ms 32604 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 6 ms 32652 KB Output is correct
19 Correct 4 ms 32604 KB Output is correct
20 Correct 6 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 32604 KB Output is correct
26 Correct 7 ms 32604 KB Output is correct
27 Correct 7 ms 32600 KB Output is correct
28 Correct 7 ms 32604 KB Output is correct
29 Correct 6 ms 32604 KB Output is correct
30 Correct 7 ms 32604 KB Output is correct
31 Correct 7 ms 32808 KB Output is correct
32 Correct 7 ms 32604 KB Output is correct
33 Correct 7 ms 32660 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 9820 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 11 ms 33016 KB Output is correct
41 Correct 2 ms 9820 KB Output is correct
42 Correct 9 ms 32792 KB Output is correct
43 Correct 8 ms 32860 KB Output is correct
44 Correct 88 ms 32856 KB Output is correct
45 Correct 1 ms 1624 KB Output is correct
46 Correct 9 ms 32892 KB Output is correct
47 Correct 13 ms 33116 KB Output is correct
48 Correct 9 ms 32860 KB Output is correct
49 Correct 14 ms 33116 KB Output is correct
50 Correct 14 ms 33040 KB Output is correct
51 Correct 59 ms 33604 KB Output is correct
52 Correct 6 ms 32600 KB Output is correct
53 Correct 103 ms 33648 KB Output is correct
54 Correct 113 ms 33656 KB Output is correct
55 Correct 7 ms 32600 KB Output is correct
56 Correct 6 ms 32604 KB Output is correct
57 Correct 5 ms 32604 KB Output is correct
58 Correct 111 ms 33860 KB Output is correct
59 Correct 10 ms 32604 KB Output is correct
60 Correct 7 ms 32604 KB Output is correct
61 Correct 9 ms 32604 KB Output is correct
62 Correct 9 ms 32556 KB Output is correct
63 Correct 88 ms 32860 KB Output is correct
64 Correct 37 ms 32860 KB Output is correct
65 Correct 8 ms 32856 KB Output is correct
66 Correct 9 ms 32604 KB Output is correct
67 Correct 38 ms 33088 KB Output is correct
68 Correct 34 ms 32860 KB Output is correct
69 Correct 8 ms 32856 KB Output is correct
70 Correct 13 ms 32860 KB Output is correct
71 Correct 37 ms 33116 KB Output is correct
72 Correct 23 ms 33116 KB Output is correct
73 Correct 6 ms 32600 KB Output is correct
74 Correct 14 ms 33044 KB Output is correct
75 Correct 23 ms 33116 KB Output is correct
76 Correct 10 ms 32860 KB Output is correct
77 Correct 28 ms 33232 KB Output is correct
78 Correct 7 ms 32604 KB Output is correct
79 Correct 15 ms 18516 KB Output is correct
80 Correct 10 ms 32876 KB Output is correct
81 Correct 30 ms 33228 KB Output is correct
82 Correct 2 ms 10076 KB Output is correct
83 Correct 15 ms 18520 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 33292 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 32652 KB Output is correct
4 Correct 6 ms 32604 KB Output is correct
5 Correct 6 ms 32604 KB Output is correct
6 Correct 6 ms 32604 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 32600 KB Output is correct
12 Correct 6 ms 32600 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 6 ms 32604 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 6 ms 32604 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 6 ms 32652 KB Output is correct
19 Correct 4 ms 32604 KB Output is correct
20 Correct 6 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 32604 KB Output is correct
26 Correct 7 ms 32604 KB Output is correct
27 Correct 7 ms 32600 KB Output is correct
28 Correct 7 ms 32604 KB Output is correct
29 Correct 6 ms 32604 KB Output is correct
30 Correct 7 ms 32604 KB Output is correct
31 Correct 7 ms 32808 KB Output is correct
32 Correct 7 ms 32604 KB Output is correct
33 Correct 7 ms 32660 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 9820 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 11 ms 33016 KB Output is correct
41 Correct 2 ms 9820 KB Output is correct
42 Correct 9 ms 32792 KB Output is correct
43 Correct 8 ms 32860 KB Output is correct
44 Correct 1 ms 1628 KB Output is correct
45 Correct 126 ms 312260 KB Output is correct
46 Correct 75 ms 310216 KB Output is correct
47 Correct 137 ms 312328 KB Output is correct
48 Correct 125 ms 312384 KB Output is correct
49 Correct 57 ms 310096 KB Output is correct
50 Correct 121 ms 312512 KB Output is correct
51 Correct 152 ms 312696 KB Output is correct
52 Correct 58 ms 310216 KB Output is correct
53 Correct 55 ms 309964 KB Output is correct
54 Correct 36 ms 308184 KB Output is correct
55 Correct 125 ms 312432 KB Output is correct
56 Correct 50 ms 309968 KB Output is correct
57 Correct 59 ms 309964 KB Output is correct
58 Correct 74 ms 309964 KB Output is correct
59 Correct 51 ms 309964 KB Output is correct
60 Correct 50 ms 309960 KB Output is correct
61 Correct 73 ms 309956 KB Output is correct
62 Correct 61 ms 309844 KB Output is correct
63 Correct 87 ms 310728 KB Output is correct
64 Correct 50 ms 309960 KB Output is correct
65 Correct 106 ms 310908 KB Output is correct
66 Correct 63 ms 309972 KB Output is correct
67 Correct 88 ms 310732 KB Output is correct
68 Correct 101 ms 310988 KB Output is correct
69 Correct 104 ms 310860 KB Output is correct
70 Correct 64 ms 309884 KB Output is correct
71 Correct 105 ms 310988 KB Output is correct
72 Correct 80 ms 310728 KB Output is correct
73 Correct 114 ms 311144 KB Output is correct
74 Correct 63 ms 309964 KB Output is correct
75 Correct 46 ms 157132 KB Output is correct
76 Correct 81 ms 310704 KB Output is correct
77 Correct 119 ms 311048 KB Output is correct
78 Correct 57 ms 157248 KB Output is correct
79 Correct 46 ms 157132 KB Output is correct
80 Correct 20 ms 80476 KB Output is correct
81 Correct 56 ms 157392 KB Output is correct
82 Correct 95 ms 310476 KB Output is correct
83 Correct 20 ms 80484 KB Output is correct
84 Correct 91 ms 310468 KB Output is correct