oj.uz

Submission #864713

# Submission time Handle Problem Language Result Execution time Memory
864713 2023-10-23T13:31:06 Z iskhakkutbilim Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 243 ms 314052 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;
//		deg[v] = 0;
		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) 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:47:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |    for(int i = 0;i < vert.size() && ok; i++){
      |                  ~~^~~~~~~~~~~~~
politicaldevelopment.cpp:50:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |     for(int j = 0;j < vert.size(); j++){
      |                   ~~^~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 7 ms 32708 KB Output is correct
4 Correct 6 ms 32764 KB Output is correct
5 Correct 6 ms 32856 KB Output is correct
6 Correct 6 ms 32820 KB Output is correct
7 Correct 7 ms 32600 KB Output is correct
8 Correct 4 ms 32600 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 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 7 ms 32708 KB Output is correct
4 Correct 6 ms 32764 KB Output is correct
5 Correct 6 ms 32856 KB Output is correct
6 Correct 6 ms 32820 KB Output is correct
7 Correct 7 ms 32600 KB Output is correct
8 Correct 4 ms 32600 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 32604 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 8 ms 32604 KB Output is correct
15 Correct 1 ms 1508 KB Output is correct
16 Correct 6 ms 32604 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 7 ms 32824 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 32720 KB Output is correct
22 Correct 5 ms 32604 KB Output is correct
23 Correct 7 ms 32804 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 6 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 8 ms 32572 KB Output is correct
32 Correct 7 ms 32604 KB Output is correct
33 Correct 7 ms 32812 KB Output is correct
34 Correct 8 ms 32604 KB Output is correct
35 Correct 4 ms 18268 KB Output is correct
36 Correct 4 ms 18520 KB Output is correct
37 Correct 4 ms 18268 KB Output is correct
38 Correct 2 ms 9820 KB Output is correct
39 Correct 2 ms 9984 KB Output is correct
40 Correct 9 ms 32876 KB Output is correct
41 Correct 2 ms 9820 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 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 1628 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 239 ms 313924 KB Output is correct
12 Correct 1 ms 1628 KB Output is correct
13 Correct 236 ms 313980 KB Output is correct
14 Correct 1 ms 1628 KB Output is correct
15 Correct 243 ms 314048 KB Output is correct
16 Correct 233 ms 314052 KB Output is correct
17 Correct 241 ms 313792 KB Output is correct
18 Correct 234 ms 314036 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 7 ms 32708 KB Output is correct
4 Correct 6 ms 32764 KB Output is correct
5 Correct 6 ms 32856 KB Output is correct
6 Correct 6 ms 32820 KB Output is correct
7 Correct 7 ms 32600 KB Output is correct
8 Correct 4 ms 32600 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 32604 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 8 ms 32604 KB Output is correct
15 Correct 1 ms 1508 KB Output is correct
16 Correct 6 ms 32604 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 7 ms 32824 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 32720 KB Output is correct
22 Correct 5 ms 32604 KB Output is correct
23 Correct 7 ms 32804 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 6 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 8 ms 32572 KB Output is correct
32 Correct 7 ms 32604 KB Output is correct
33 Correct 7 ms 32812 KB Output is correct
34 Correct 8 ms 32604 KB Output is correct
35 Correct 4 ms 18268 KB Output is correct
36 Correct 4 ms 18520 KB Output is correct
37 Correct 4 ms 18268 KB Output is correct
38 Correct 2 ms 9820 KB Output is correct
39 Correct 2 ms 9984 KB Output is correct
40 Correct 9 ms 32876 KB Output is correct
41 Correct 2 ms 9820 KB Output is correct
42 Correct 9 ms 32860 KB Output is correct
43 Correct 9 ms 32856 KB Output is correct
44 Correct 90 ms 32856 KB Output is correct
45 Correct 1 ms 1628 KB Output is correct
46 Correct 9 ms 32752 KB Output is correct
47 Correct 14 ms 33008 KB Output is correct
48 Correct 9 ms 32856 KB Output is correct
49 Correct 13 ms 33112 KB Output is correct
50 Correct 14 ms 33112 KB Output is correct
51 Correct 62 ms 33688 KB Output is correct
52 Correct 6 ms 32600 KB Output is correct
53 Correct 108 ms 33740 KB Output is correct
54 Correct 121 ms 33708 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 32524 KB Output is correct
58 Correct 108 ms 33832 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 32792 KB Output is correct
62 Correct 8 ms 32604 KB Output is correct
63 Correct 90 ms 32856 KB Output is correct
64 Correct 40 ms 32856 KB Output is correct
65 Correct 8 ms 32860 KB Output is correct
66 Correct 9 ms 32800 KB Output is correct
67 Correct 39 ms 33112 KB Output is correct
68 Correct 40 ms 32860 KB Output is correct
69 Correct 8 ms 32860 KB Output is correct
70 Correct 13 ms 32860 KB Output is correct
71 Correct 39 ms 33136 KB Output is correct
72 Correct 25 ms 33116 KB Output is correct
73 Correct 7 ms 32600 KB Output is correct
74 Correct 14 ms 33044 KB Output is correct
75 Correct 25 ms 33116 KB Output is correct
76 Correct 10 ms 32856 KB Output is correct
77 Correct 30 ms 33240 KB Output is correct
78 Correct 6 ms 32748 KB Output is correct
79 Correct 15 ms 18520 KB Output is correct
80 Correct 10 ms 32860 KB Output is correct
81 Correct 30 ms 33312 KB Output is correct
82 Correct 2 ms 9820 KB Output is correct
83 Correct 15 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 19 ms 33260 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 7 ms 32708 KB Output is correct
4 Correct 6 ms 32764 KB Output is correct
5 Correct 6 ms 32856 KB Output is correct
6 Correct 6 ms 32820 KB Output is correct
7 Correct 7 ms 32600 KB Output is correct
8 Correct 4 ms 32600 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 32604 KB Output is correct
13 Correct 1 ms 1628 KB Output is correct
14 Correct 8 ms 32604 KB Output is correct
15 Correct 1 ms 1508 KB Output is correct
16 Correct 6 ms 32604 KB Output is correct
17 Correct 1 ms 1628 KB Output is correct
18 Correct 7 ms 32824 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 32720 KB Output is correct
22 Correct 5 ms 32604 KB Output is correct
23 Correct 7 ms 32804 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 6 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 8 ms 32572 KB Output is correct
32 Correct 7 ms 32604 KB Output is correct
33 Correct 7 ms 32812 KB Output is correct
34 Correct 8 ms 32604 KB Output is correct
35 Correct 4 ms 18268 KB Output is correct
36 Correct 4 ms 18520 KB Output is correct
37 Correct 4 ms 18268 KB Output is correct
38 Correct 2 ms 9820 KB Output is correct
39 Correct 2 ms 9984 KB Output is correct
40 Correct 9 ms 32876 KB Output is correct
41 Correct 2 ms 9820 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 127 ms 312360 KB Output is correct
46 Correct 75 ms 309992 KB Output is correct
47 Correct 132 ms 312260 KB Output is correct
48 Correct 127 ms 312264 KB Output is correct
49 Correct 59 ms 310232 KB Output is correct
50 Correct 123 ms 312512 KB Output is correct
51 Correct 129 ms 312260 KB Output is correct
52 Correct 59 ms 310220 KB Output is correct
53 Correct 54 ms 309964 KB Output is correct
54 Correct 36 ms 308164 KB Output is correct
55 Correct 126 ms 312516 KB Output is correct
56 Correct 50 ms 309964 KB Output is correct
57 Correct 58 ms 309960 KB Output is correct
58 Correct 76 ms 309916 KB Output is correct
59 Correct 57 ms 309964 KB Output is correct
60 Correct 50 ms 309832 KB Output is correct
61 Correct 76 ms 309960 KB Output is correct
62 Correct 62 ms 309964 KB Output is correct
63 Correct 89 ms 310804 KB Output is correct
64 Correct 53 ms 309976 KB Output is correct
65 Correct 106 ms 310860 KB Output is correct
66 Correct 64 ms 309972 KB Output is correct
67 Correct 88 ms 310712 KB Output is correct
68 Correct 101 ms 311028 KB Output is correct
69 Correct 104 ms 310896 KB Output is correct
70 Correct 67 ms 309960 KB Output is correct
71 Correct 100 ms 310972 KB Output is correct
72 Correct 82 ms 310728 KB Output is correct
73 Correct 119 ms 311156 KB Output is correct
74 Correct 64 ms 309960 KB Output is correct
75 Correct 45 ms 157076 KB Output is correct
76 Correct 79 ms 310704 KB Output is correct
77 Correct 114 ms 310988 KB Output is correct
78 Correct 61 ms 157388 KB Output is correct
79 Correct 47 ms 157132 KB Output is correct
80 Correct 20 ms 80476 KB Output is correct
81 Correct 56 ms 157332 KB Output is correct
82 Correct 92 ms 310472 KB Output is correct
83 Correct 20 ms 80472 KB Output is correct
84 Correct 98 ms 310980 KB Output is correct