oj.uz

Submission #557527

# Submission time Handle Problem Language Result Execution time Memory
557527 2022-05-05T12:33:11 Z fatemetmhr Political Development (BOI17_politicaldevelopment) C++17
16 / 100
 184 ms 37800 KB 
// `Be name khoda` //

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

#define pb     push_back
#define all(x) x.begin(), x.end()
#define fi     first
#define se     second


const int maxn5 = 2e5 + 10;

set <int> adjset[maxn5];
vector <int> adj[maxn5], ver;
priority_queue <pair<int, int>> av;
bool ed[20][20], mark[maxn5], dp[1 << 20];
int cnt[maxn5];

inline int max_indep(){
    int n = ver.size();
    for(int i = 0; i < n; i++) for(int j = 0; j < n; j++)
        if(adjset[ver[i]].find(ver[j]) != adjset[ver[i]].end())
            ed[i][j] = true;
    dp[0] = true;
    int ans = 0;
    for(int mask = 1; mask < (1 << n); mask++){
        int v = -1;
        dp[mask] = true;
        for(int i = 0; i < n; i++) if((mask >> i)&1){
            if(v == -1){
                v = i;
                dp[mask] = dp[mask ^ (1 << i)];
            }
            else
                dp[mask] &= ed[v][i];
        }
        if(dp[mask])
            ans = max(ans, __builtin_popcount(mask));
    }
    return ans;
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

    int n, k; cin >> n >> k;
    for(int i = 0; i < n; i++){
        int l; cin >> l;
        cnt[i] = l;
        while(l--){
            int a; cin >> a;
            adj[i].pb(a);
            adjset[i].insert(a);
        }
        av.push({-cnt[i], i});
    }
    for(int i = 0; i < n; i++) for(auto u : adj[i])
        assert(adjset[u].find(i) != adjset[u].end());
    int ans = 0;
    for(int i = 0; i < n; i++){
        while(mark[av.top().se])
            av.pop();
        int v = av.top().se;
        av.pop();
        mark[v] = true;
        ver.clear();
        for(auto u : adj[v]) if(!mark[u]){
            cnt[u]--;
            av.push({-cnt[u], u});
            ver.pb(u);
        }
        ans = max(ans, max_indep() + 1);
    }
    cout << ans << endl;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14316 KB Output is correct
3 Correct 11 ms 15060 KB Output is correct
4 Correct 11 ms 15116 KB Output is correct
5 Correct 11 ms 15060 KB Output is correct
6 Correct 11 ms 15060 KB Output is correct
7 Correct 11 ms 15060 KB Output is correct
8 Correct 8 ms 14548 KB Output is correct
9 Correct 7 ms 14420 KB Output is correct
10 Correct 8 ms 14548 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14316 KB Output is correct
3 Correct 11 ms 15060 KB Output is correct
4 Correct 11 ms 15116 KB Output is correct
5 Correct 11 ms 15060 KB Output is correct
6 Correct 11 ms 15060 KB Output is correct
7 Correct 11 ms 15060 KB Output is correct
8 Correct 8 ms 14548 KB Output is correct
9 Correct 7 ms 14420 KB Output is correct
10 Correct 8 ms 14548 KB Output is correct
11 Correct 11 ms 15060 KB Output is correct
12 Correct 11 ms 15112 KB Output is correct
13 Correct 7 ms 14420 KB Output is correct
14 Correct 10 ms 15136 KB Output is correct
15 Correct 8 ms 14420 KB Output is correct
16 Correct 11 ms 15100 KB Output is correct
17 Correct 7 ms 14420 KB Output is correct
18 Correct 11 ms 15060 KB Output is correct
19 Correct 8 ms 14548 KB Output is correct
20 Correct 9 ms 14804 KB Output is correct
21 Correct 9 ms 14884 KB Output is correct
22 Correct 8 ms 14536 KB Output is correct
23 Correct 13 ms 15248 KB Output is correct
24 Correct 8 ms 14544 KB Output is correct
25 Correct 13 ms 15188 KB Output is correct
26 Correct 11 ms 15164 KB Output is correct
27 Correct 12 ms 15060 KB Output is correct
28 Correct 12 ms 15104 KB Output is correct
29 Correct 10 ms 15060 KB Output is correct
30 Correct 12 ms 15256 KB Output is correct
31 Correct 13 ms 15172 KB Output is correct
32 Correct 12 ms 15244 KB Output is correct
33 Correct 12 ms 15288 KB Output is correct
34 Correct 12 ms 15188 KB Output is correct
35 Correct 10 ms 14796 KB Output is correct
36 Correct 9 ms 14804 KB Output is correct
37 Correct 9 ms 14804 KB Output is correct
38 Correct 9 ms 14676 KB Output is correct
39 Correct 9 ms 14704 KB Output is correct
40 Correct 14 ms 15648 KB Output is correct
41 Correct 9 ms 14676 KB Output is correct
42 Correct 14 ms 15648 KB Output is correct
43 Correct 14 ms 15644 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14536 KB Output is correct
2 Incorrect 8 ms 14420 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14316 KB Output is correct
3 Correct 11 ms 15060 KB Output is correct
4 Correct 11 ms 15116 KB Output is correct
5 Correct 11 ms 15060 KB Output is correct
6 Correct 11 ms 15060 KB Output is correct
7 Correct 11 ms 15060 KB Output is correct
8 Correct 8 ms 14548 KB Output is correct
9 Correct 7 ms 14420 KB Output is correct
10 Correct 8 ms 14548 KB Output is correct
11 Correct 11 ms 15060 KB Output is correct
12 Correct 11 ms 15112 KB Output is correct
13 Correct 7 ms 14420 KB Output is correct
14 Correct 10 ms 15136 KB Output is correct
15 Correct 8 ms 14420 KB Output is correct
16 Correct 11 ms 15100 KB Output is correct
17 Correct 7 ms 14420 KB Output is correct
18 Correct 11 ms 15060 KB Output is correct
19 Correct 8 ms 14548 KB Output is correct
20 Correct 9 ms 14804 KB Output is correct
21 Correct 9 ms 14884 KB Output is correct
22 Correct 8 ms 14536 KB Output is correct
23 Correct 13 ms 15248 KB Output is correct
24 Correct 8 ms 14544 KB Output is correct
25 Correct 13 ms 15188 KB Output is correct
26 Correct 11 ms 15164 KB Output is correct
27 Correct 12 ms 15060 KB Output is correct
28 Correct 12 ms 15104 KB Output is correct
29 Correct 10 ms 15060 KB Output is correct
30 Correct 12 ms 15256 KB Output is correct
31 Correct 13 ms 15172 KB Output is correct
32 Correct 12 ms 15244 KB Output is correct
33 Correct 12 ms 15288 KB Output is correct
34 Correct 12 ms 15188 KB Output is correct
35 Correct 10 ms 14796 KB Output is correct
36 Correct 9 ms 14804 KB Output is correct
37 Correct 9 ms 14804 KB Output is correct
38 Correct 9 ms 14676 KB Output is correct
39 Correct 9 ms 14704 KB Output is correct
40 Correct 14 ms 15648 KB Output is correct
41 Correct 9 ms 14676 KB Output is correct
42 Correct 14 ms 15648 KB Output is correct
43 Correct 14 ms 15644 KB Output is correct
44 Correct 27 ms 16608 KB Output is correct
45 Correct 8 ms 14420 KB Output is correct
46 Correct 15 ms 15648 KB Output is correct
47 Incorrect 25 ms 16892 KB Output isn't correct
48 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14316 KB Output is correct
3 Correct 11 ms 15060 KB Output is correct
4 Correct 11 ms 15116 KB Output is correct
5 Correct 11 ms 15060 KB Output is correct
6 Correct 11 ms 15060 KB Output is correct
7 Correct 11 ms 15060 KB Output is correct
8 Correct 8 ms 14548 KB Output is correct
9 Correct 7 ms 14420 KB Output is correct
10 Correct 8 ms 14548 KB Output is correct
11 Correct 11 ms 15060 KB Output is correct
12 Correct 11 ms 15112 KB Output is correct
13 Correct 7 ms 14420 KB Output is correct
14 Correct 10 ms 15136 KB Output is correct
15 Correct 8 ms 14420 KB Output is correct
16 Correct 11 ms 15100 KB Output is correct
17 Correct 7 ms 14420 KB Output is correct
18 Correct 11 ms 15060 KB Output is correct
19 Correct 8 ms 14548 KB Output is correct
20 Correct 9 ms 14804 KB Output is correct
21 Correct 9 ms 14884 KB Output is correct
22 Correct 8 ms 14536 KB Output is correct
23 Correct 13 ms 15248 KB Output is correct
24 Correct 8 ms 14544 KB Output is correct
25 Correct 13 ms 15188 KB Output is correct
26 Correct 11 ms 15164 KB Output is correct
27 Correct 12 ms 15060 KB Output is correct
28 Correct 12 ms 15104 KB Output is correct
29 Correct 10 ms 15060 KB Output is correct
30 Correct 12 ms 15256 KB Output is correct
31 Correct 13 ms 15172 KB Output is correct
32 Correct 12 ms 15244 KB Output is correct
33 Correct 12 ms 15288 KB Output is correct
34 Correct 12 ms 15188 KB Output is correct
35 Correct 10 ms 14796 KB Output is correct
36 Correct 9 ms 14804 KB Output is correct
37 Correct 9 ms 14804 KB Output is correct
38 Correct 9 ms 14676 KB Output is correct
39 Correct 9 ms 14704 KB Output is correct
40 Correct 14 ms 15648 KB Output is correct
41 Correct 9 ms 14676 KB Output is correct
42 Correct 14 ms 15648 KB Output is correct
43 Correct 14 ms 15644 KB Output is correct
44 Correct 9 ms 14420 KB Output is correct
45 Correct 160 ms 33156 KB Output is correct
46 Correct 79 ms 23860 KB Output is correct
47 Correct 165 ms 33088 KB Output is correct
48 Correct 157 ms 33132 KB Output is correct
49 Correct 47 ms 21416 KB Output is correct
50 Correct 184 ms 37800 KB Output is correct
51 Incorrect 176 ms 33208 KB Output isn't correct
52 Halted 0 ms 0 KB -