oj.uz

Submission #864712

# Submission time Handle Problem Language Result Execution time Memory
864712 2023-10-23T13:30:31 Z iskhakkutbilim Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 240 ms 314192 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 1624 KB Output is correct
3 Correct 6 ms 32596 KB Output is correct
4 Correct 6 ms 32600 KB Output is correct
5 Correct 6 ms 32600 KB Output is correct
6 Correct 7 ms 32604 KB Output is correct
7 Correct 6 ms 32604 KB Output is correct
8 Correct 5 ms 32604 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 5 ms 32668 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 1624 KB Output is correct
3 Correct 6 ms 32596 KB Output is correct
4 Correct 6 ms 32600 KB Output is correct
5 Correct 6 ms 32600 KB Output is correct
6 Correct 7 ms 32604 KB Output is correct
7 Correct 6 ms 32604 KB Output is correct
8 Correct 5 ms 32604 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 5 ms 32668 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 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 32604 KB Output is correct
19 Correct 4 ms 32604 KB Output is correct
20 Correct 5 ms 32600 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 32600 KB Output is correct
27 Correct 6 ms 32604 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 32604 KB Output is correct
32 Correct 7 ms 32604 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 9820 KB Output is correct
39 Correct 2 ms 9820 KB Output is correct
40 Correct 9 ms 32860 KB Output is correct
41 Correct 2 ms 9820 KB Output is correct
42 Correct 8 ms 32860 KB Output is correct
43 Correct 9 ms 32748 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 2084 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 236 ms 313848 KB Output is correct
12 Correct 1 ms 1628 KB Output is correct
13 Correct 240 ms 314192 KB Output is correct
14 Correct 1 ms 1628 KB Output is correct
15 Correct 236 ms 313960 KB Output is correct
16 Correct 234 ms 314052 KB Output is correct
17 Correct 237 ms 314044 KB Output is correct
18 Correct 237 ms 313908 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 1624 KB Output is correct
3 Correct 6 ms 32596 KB Output is correct
4 Correct 6 ms 32600 KB Output is correct
5 Correct 6 ms 32600 KB Output is correct
6 Correct 7 ms 32604 KB Output is correct
7 Correct 6 ms 32604 KB Output is correct
8 Correct 5 ms 32604 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 5 ms 32668 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 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 32604 KB Output is correct
19 Correct 4 ms 32604 KB Output is correct
20 Correct 5 ms 32600 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 32600 KB Output is correct
27 Correct 6 ms 32604 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 32604 KB Output is correct
32 Correct 7 ms 32604 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 9820 KB Output is correct
39 Correct 2 ms 9820 KB Output is correct
40 Correct 9 ms 32860 KB Output is correct
41 Correct 2 ms 9820 KB Output is correct
42 Correct 8 ms 32860 KB Output is correct
43 Correct 9 ms 32748 KB Output is correct
44 Correct 91 ms 32860 KB Output is correct
45 Correct 1 ms 1624 KB Output is correct
46 Correct 9 ms 32856 KB Output is correct
47 Correct 14 ms 33116 KB Output is correct
48 Correct 10 ms 32860 KB Output is correct
49 Correct 14 ms 33048 KB Output is correct
50 Correct 14 ms 33116 KB Output is correct
51 Correct 63 ms 33436 KB Output is correct
52 Correct 6 ms 32604 KB Output is correct
53 Correct 108 ms 33652 KB Output is correct
54 Correct 120 ms 33736 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 110 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 89 ms 32860 KB Output is correct
64 Correct 38 ms 32860 KB Output is correct
65 Correct 8 ms 32860 KB Output is correct
66 Correct 9 ms 32564 KB Output is correct
67 Correct 40 ms 33116 KB Output is correct
68 Correct 39 ms 32856 KB Output is correct
69 Correct 8 ms 32860 KB Output is correct
70 Correct 13 ms 32844 KB Output is correct
71 Correct 38 ms 33116 KB Output is correct
72 Correct 24 ms 33116 KB Output is correct
73 Correct 6 ms 32604 KB Output is correct
74 Correct 14 ms 33052 KB Output is correct
75 Correct 24 ms 33116 KB Output is correct
76 Correct 10 ms 33112 KB Output is correct
77 Correct 30 ms 33228 KB Output is correct
78 Correct 6 ms 32604 KB Output is correct
79 Correct 15 ms 18620 KB Output is correct
80 Correct 10 ms 32840 KB Output is correct
81 Correct 30 ms 33280 KB Output is correct
82 Correct 2 ms 9816 KB Output is correct
83 Correct 15 ms 18432 KB Output is correct
84 Correct 18 ms 33240 KB Output is correct
85 Correct 2 ms 9816 KB Output is correct
86 Correct 18 ms 33240 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 1624 KB Output is correct
3 Correct 6 ms 32596 KB Output is correct
4 Correct 6 ms 32600 KB Output is correct
5 Correct 6 ms 32600 KB Output is correct
6 Correct 7 ms 32604 KB Output is correct
7 Correct 6 ms 32604 KB Output is correct
8 Correct 5 ms 32604 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 5 ms 32668 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 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 32604 KB Output is correct
19 Correct 4 ms 32604 KB Output is correct
20 Correct 5 ms 32600 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 32600 KB Output is correct
27 Correct 6 ms 32604 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 32604 KB Output is correct
32 Correct 7 ms 32604 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 9820 KB Output is correct
39 Correct 2 ms 9820 KB Output is correct
40 Correct 9 ms 32860 KB Output is correct
41 Correct 2 ms 9820 KB Output is correct
42 Correct 8 ms 32860 KB Output is correct
43 Correct 9 ms 32748 KB Output is correct
44 Correct 1 ms 1624 KB Output is correct
45 Correct 126 ms 312440 KB Output is correct
46 Correct 76 ms 310216 KB Output is correct
47 Correct 130 ms 312264 KB Output is correct
48 Correct 126 ms 312280 KB Output is correct
49 Correct 57 ms 310348 KB Output is correct
50 Correct 135 ms 312580 KB Output is correct
51 Correct 130 ms 312332 KB Output is correct
52 Correct 58 ms 310220 KB Output is correct
53 Correct 54 ms 310216 KB Output is correct
54 Correct 37 ms 308188 KB Output is correct
55 Correct 122 ms 312520 KB Output is correct
56 Correct 56 ms 309968 KB Output is correct
57 Correct 57 ms 310172 KB Output is correct
58 Correct 74 ms 310224 KB Output is correct
59 Correct 51 ms 309888 KB Output is correct
60 Correct 52 ms 309960 KB Output is correct
61 Correct 74 ms 309960 KB Output is correct
62 Correct 61 ms 309960 KB Output is correct
63 Correct 89 ms 310832 KB Output is correct
64 Correct 50 ms 309960 KB Output is correct
65 Correct 105 ms 310860 KB Output is correct
66 Correct 60 ms 309964 KB Output is correct
67 Correct 89 ms 310792 KB Output is correct
68 Correct 100 ms 310920 KB Output is correct
69 Correct 103 ms 310924 KB Output is correct
70 Correct 69 ms 309816 KB Output is correct
71 Correct 98 ms 310984 KB Output is correct
72 Correct 85 ms 310988 KB Output is correct
73 Correct 114 ms 310940 KB Output is correct
74 Correct 64 ms 309960 KB Output is correct
75 Correct 45 ms 157136 KB Output is correct
76 Correct 88 ms 310800 KB Output is correct
77 Correct 121 ms 310988 KB Output is correct
78 Correct 55 ms 157400 KB Output is correct
79 Correct 48 ms 157136 KB Output is correct
80 Correct 19 ms 80472 KB Output is correct
81 Correct 55 ms 157252 KB Output is correct
82 Correct 94 ms 310560 KB Output is correct
83 Correct 20 ms 80476 KB Output is correct
84 Correct 104 ms 310732 KB Output is correct