oj.uz

답안 #647882

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
647882 2022-10-04T11:32:39 Z mychecksedad Political Development (BOI17_politicaldevelopment) C++17
39 / 100
 3000 ms 399840 KB 
/* Author : Mychecksdead */
#include<bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long int ll;
typedef long double ld;
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define PI 3.1415926535
#define pb push_back
#define setp() cout << setprecision(15)
#define all(x) x.begin(), x.end()
#define oset tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update>
#define debug(x) cerr << #x << " is " << x << '\n';
const int N = 1e6+100, M = 1e5+10, F = 2147483646, K = 20;


int n, k;
vector<int> g[N], path;
vector<bool> vis(N);
vector<bitset<50001>> is;
void dfs(int v, int p){
    vis[v] = 1;
    path.pb(v);
    for(int u: g[v]){
        if(u != p){
            if(vis[u]){
                if(path[path.size() - 3] == u){
                    cout << 3;
                    exit(0);
                }
            }else{
                dfs(u, v);
            }
        }    
    }
    path.pop_back();
}

void solve(){
    cin >> n >> k;
    is.resize(n+1);
    for(int i = 0; i < n; ++i){
        int d; cin >> d;
        for(int j = 0; j < d; ++j){
            int x; cin >> x; g[i].pb(x); is[i][x] = 1;
        }
    }
    if(k <= 2){
        for(int i = 0; i < n; ++i){
            if(g[i].size()){
                cout << 2;
                return;
            }
        }
        cout << 1;
        return;
    }
    if(k <= 3){
        for(int i = 0; i < n; ++i) if(!vis[i]) dfs(i, i);
        for(int i = 0; i < n; ++i){
            if(g[i].size()){
                cout << 2;
                return;
            }
        }
        cout << 1;
        return;
    }
    vector<vector<int>> v;
    for(int i = 0; i < n; ++i) v.pb({i});
    for(int j = 2; j <= k; ++j){
        bitset<50001> in, out;
        vector<vector<int>> t;

        if(n <= 5000){
            for(auto &u: v){
                for(int x: u) in[x] = 1;
                for(int i = 0; i < n; ++i){
                    if(!in[i]){
                        bool ok = 1;
                        for(int d: u){
                            if(!is[d][i]){
                                ok = 0;
                                break;
                            }
                        }
                        if(ok){
                            u.pb(i);
                            t.pb(u);
                            u.pop_back();
                        }
                    }
                }
                for(int x: u) in[x] = 0;
            }
        }else{
            for(auto &u: v){
                for(int x: u) in[x] = 1;
                vector<int> extend;
                for(int x: u){
                    for(int e: g[x]){
                        if(!out[e] && !in[e]){
                            out[e] = 1;
                            extend.pb(e);
                        }
                    }
                }
                for(int x: extend){
                    out[x] = 0;
                    bool ok = 1;
                    for(int p: u){
                        if(!is[p][x]){
                            ok = 0;
                            break;
                        }
                    }
                    if(ok){
                        u.pb(x);
                        t.pb(u);
                        u.pop_back();
                    }
                }
                for(int x: u) in[x] = 0;
            }
        }
        if(t.size() == 0){
            cout << j - 1;
            return;
        }
        v = t;
    }
    cout << k;
}   





int main(){
    cin.tie(0); ios::sync_with_stdio(0);
    int T = 1, aa;
    // cin >> T;aa=T;
    while(T--){
        // cout << "Case #" << aa-T << ": ";
        solve();
        cout << '\n';
    }
    return 0;
 
}

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:143:16: warning: unused variable 'aa' [-Wunused-variable]
  143 |     int T = 1, aa;
      |                ^~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23880 KB Output is correct
2 Correct 13 ms 24036 KB Output is correct
3 Correct 28 ms 54636 KB Output is correct
4 Correct 27 ms 54604 KB Output is correct
5 Correct 26 ms 54720 KB Output is correct
6 Correct 25 ms 54740 KB Output is correct
7 Correct 30 ms 54672 KB Output is correct
8 Correct 25 ms 54484 KB Output is correct
9 Correct 13 ms 23956 KB Output is correct
10 Correct 25 ms 54484 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23880 KB Output is correct
2 Correct 13 ms 24036 KB Output is correct
3 Correct 28 ms 54636 KB Output is correct
4 Correct 27 ms 54604 KB Output is correct
5 Correct 26 ms 54720 KB Output is correct
6 Correct 25 ms 54740 KB Output is correct
7 Correct 30 ms 54672 KB Output is correct
8 Correct 25 ms 54484 KB Output is correct
9 Correct 13 ms 23956 KB Output is correct
10 Correct 25 ms 54484 KB Output is correct
11 Correct 25 ms 54660 KB Output is correct
12 Correct 25 ms 54644 KB Output is correct
13 Correct 13 ms 23968 KB Output is correct
14 Correct 27 ms 54740 KB Output is correct
15 Correct 13 ms 23864 KB Output is correct
16 Correct 29 ms 54712 KB Output is correct
17 Correct 13 ms 23892 KB Output is correct
18 Correct 27 ms 54700 KB Output is correct
19 Correct 24 ms 54484 KB Output is correct
20 Correct 31 ms 54696 KB Output is correct
21 Correct 24 ms 54612 KB Output is correct
22 Correct 32 ms 54536 KB Output is correct
23 Correct 31 ms 54632 KB Output is correct
24 Correct 28 ms 54440 KB Output is correct
25 Correct 28 ms 54620 KB Output is correct
26 Correct 27 ms 54824 KB Output is correct
27 Correct 28 ms 55024 KB Output is correct
28 Correct 27 ms 54812 KB Output is correct
29 Correct 32 ms 55020 KB Output is correct
30 Correct 28 ms 54604 KB Output is correct
31 Correct 34 ms 54792 KB Output is correct
32 Correct 27 ms 54740 KB Output is correct
33 Correct 28 ms 54780 KB Output is correct
34 Correct 28 ms 54920 KB Output is correct
35 Correct 20 ms 39448 KB Output is correct
36 Correct 20 ms 39380 KB Output is correct
37 Correct 20 ms 39372 KB Output is correct
38 Correct 16 ms 31572 KB Output is correct
39 Correct 16 ms 31572 KB Output is correct
40 Correct 27 ms 54628 KB Output is correct
41 Correct 20 ms 31572 KB Output is correct
42 Correct 28 ms 54660 KB Output is correct
43 Correct 29 ms 54740 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 104 ms 54956 KB Output is correct
2 Correct 12 ms 24048 KB Output is correct
3 Correct 13 ms 24020 KB Output is correct
4 Correct 12 ms 24032 KB Output is correct
5 Correct 12 ms 24020 KB Output is correct
6 Correct 13 ms 24044 KB Output is correct
7 Correct 13 ms 24020 KB Output is correct
8 Correct 16 ms 24020 KB Output is correct
9 Correct 14 ms 23988 KB Output is correct
10 Correct 13 ms 24020 KB Output is correct
11 Correct 637 ms 386060 KB Output is correct
12 Correct 14 ms 24020 KB Output is correct
13 Correct 1241 ms 399840 KB Output is correct
14 Correct 13 ms 23980 KB Output is correct
15 Correct 684 ms 386408 KB Output is correct
16 Correct 704 ms 386276 KB Output is correct
17 Correct 1283 ms 399828 KB Output is correct
18 Correct 742 ms 386320 KB Output is correct

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23880 KB Output is correct
2 Correct 13 ms 24036 KB Output is correct
3 Correct 28 ms 54636 KB Output is correct
4 Correct 27 ms 54604 KB Output is correct
5 Correct 26 ms 54720 KB Output is correct
6 Correct 25 ms 54740 KB Output is correct
7 Correct 30 ms 54672 KB Output is correct
8 Correct 25 ms 54484 KB Output is correct
9 Correct 13 ms 23956 KB Output is correct
10 Correct 25 ms 54484 KB Output is correct
11 Correct 25 ms 54660 KB Output is correct
12 Correct 25 ms 54644 KB Output is correct
13 Correct 13 ms 23968 KB Output is correct
14 Correct 27 ms 54740 KB Output is correct
15 Correct 13 ms 23864 KB Output is correct
16 Correct 29 ms 54712 KB Output is correct
17 Correct 13 ms 23892 KB Output is correct
18 Correct 27 ms 54700 KB Output is correct
19 Correct 24 ms 54484 KB Output is correct
20 Correct 31 ms 54696 KB Output is correct
21 Correct 24 ms 54612 KB Output is correct
22 Correct 32 ms 54536 KB Output is correct
23 Correct 31 ms 54632 KB Output is correct
24 Correct 28 ms 54440 KB Output is correct
25 Correct 28 ms 54620 KB Output is correct
26 Correct 27 ms 54824 KB Output is correct
27 Correct 28 ms 55024 KB Output is correct
28 Correct 27 ms 54812 KB Output is correct
29 Correct 32 ms 55020 KB Output is correct
30 Correct 28 ms 54604 KB Output is correct
31 Correct 34 ms 54792 KB Output is correct
32 Correct 27 ms 54740 KB Output is correct
33 Correct 28 ms 54780 KB Output is correct
34 Correct 28 ms 54920 KB Output is correct
35 Correct 20 ms 39448 KB Output is correct
36 Correct 20 ms 39380 KB Output is correct
37 Correct 20 ms 39372 KB Output is correct
38 Correct 16 ms 31572 KB Output is correct
39 Correct 16 ms 31572 KB Output is correct
40 Correct 27 ms 54628 KB Output is correct
41 Correct 20 ms 31572 KB Output is correct
42 Correct 28 ms 54660 KB Output is correct
43 Correct 29 ms 54740 KB Output is correct
44 Execution timed out 3100 ms 120100 KB Time limit exceeded
45 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23880 KB Output is correct
2 Correct 13 ms 24036 KB Output is correct
3 Correct 28 ms 54636 KB Output is correct
4 Correct 27 ms 54604 KB Output is correct
5 Correct 26 ms 54720 KB Output is correct
6 Correct 25 ms 54740 KB Output is correct
7 Correct 30 ms 54672 KB Output is correct
8 Correct 25 ms 54484 KB Output is correct
9 Correct 13 ms 23956 KB Output is correct
10 Correct 25 ms 54484 KB Output is correct
11 Correct 25 ms 54660 KB Output is correct
12 Correct 25 ms 54644 KB Output is correct
13 Correct 13 ms 23968 KB Output is correct
14 Correct 27 ms 54740 KB Output is correct
15 Correct 13 ms 23864 KB Output is correct
16 Correct 29 ms 54712 KB Output is correct
17 Correct 13 ms 23892 KB Output is correct
18 Correct 27 ms 54700 KB Output is correct
19 Correct 24 ms 54484 KB Output is correct
20 Correct 31 ms 54696 KB Output is correct
21 Correct 24 ms 54612 KB Output is correct
22 Correct 32 ms 54536 KB Output is correct
23 Correct 31 ms 54632 KB Output is correct
24 Correct 28 ms 54440 KB Output is correct
25 Correct 28 ms 54620 KB Output is correct
26 Correct 27 ms 54824 KB Output is correct
27 Correct 28 ms 55024 KB Output is correct
28 Correct 27 ms 54812 KB Output is correct
29 Correct 32 ms 55020 KB Output is correct
30 Correct 28 ms 54604 KB Output is correct
31 Correct 34 ms 54792 KB Output is correct
32 Correct 27 ms 54740 KB Output is correct
33 Correct 28 ms 54780 KB Output is correct
34 Correct 28 ms 54920 KB Output is correct
35 Correct 20 ms 39448 KB Output is correct
36 Correct 20 ms 39380 KB Output is correct
37 Correct 20 ms 39372 KB Output is correct
38 Correct 16 ms 31572 KB Output is correct
39 Correct 16 ms 31572 KB Output is correct
40 Correct 27 ms 54628 KB Output is correct
41 Correct 20 ms 31572 KB Output is correct
42 Correct 28 ms 54660 KB Output is correct
43 Correct 29 ms 54740 KB Output is correct
44 Correct 13 ms 24020 KB Output is correct
45 Correct 519 ms 367896 KB Output is correct
46 Execution timed out 3112 ms 350820 KB Time limit exceeded
47 Halted 0 ms 0 KB -