oj.uz

Submission #647877

# Submission time Handle Problem Language Result Execution time Memory
647877 2022-10-04T11:14:10 Z mychecksedad Political Development (BOI17_politicaldevelopment) C++17
39 / 100
 3000 ms 524288 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);
bitset<50001> is[50001];
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;
    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;

        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:120:16: warning: unused variable 'aa' [-Wunused-variable]
  120 |     int T = 1, aa;
      |                ^~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23892 KB Output is correct
2 Correct 12 ms 23972 KB Output is correct
3 Correct 21 ms 44824 KB Output is correct
4 Correct 20 ms 44244 KB Output is correct
5 Correct 20 ms 44172 KB Output is correct
6 Correct 21 ms 44256 KB Output is correct
7 Correct 20 ms 44244 KB Output is correct
8 Correct 12 ms 23892 KB Output is correct
9 Correct 12 ms 23872 KB Output is correct
10 Correct 14 ms 23872 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23892 KB Output is correct
2 Correct 12 ms 23972 KB Output is correct
3 Correct 21 ms 44824 KB Output is correct
4 Correct 20 ms 44244 KB Output is correct
5 Correct 20 ms 44172 KB Output is correct
6 Correct 21 ms 44256 KB Output is correct
7 Correct 20 ms 44244 KB Output is correct
8 Correct 12 ms 23892 KB Output is correct
9 Correct 12 ms 23872 KB Output is correct
10 Correct 14 ms 23872 KB Output is correct
11 Correct 21 ms 44124 KB Output is correct
12 Correct 20 ms 44180 KB Output is correct
13 Correct 13 ms 23892 KB Output is correct
14 Correct 21 ms 44092 KB Output is correct
15 Correct 13 ms 23892 KB Output is correct
16 Correct 23 ms 44168 KB Output is correct
17 Correct 14 ms 23892 KB Output is correct
18 Correct 22 ms 44244 KB Output is correct
19 Correct 14 ms 23904 KB Output is correct
20 Correct 21 ms 44092 KB Output is correct
21 Correct 24 ms 44180 KB Output is correct
22 Correct 12 ms 23892 KB Output is correct
23 Correct 22 ms 45396 KB Output is correct
24 Correct 13 ms 23892 KB Output is correct
25 Correct 22 ms 45260 KB Output is correct
26 Correct 23 ms 44672 KB Output is correct
27 Correct 24 ms 45588 KB Output is correct
28 Correct 22 ms 44560 KB Output is correct
29 Correct 23 ms 45524 KB Output is correct
30 Correct 24 ms 45108 KB Output is correct
31 Correct 22 ms 45696 KB Output is correct
32 Correct 22 ms 45036 KB Output is correct
33 Correct 22 ms 45580 KB Output is correct
34 Correct 24 ms 45780 KB Output is correct
35 Correct 19 ms 34516 KB Output is correct
36 Correct 18 ms 34448 KB Output is correct
37 Correct 19 ms 34472 KB Output is correct
38 Correct 15 ms 29012 KB Output is correct
39 Correct 16 ms 29080 KB Output is correct
40 Correct 23 ms 45900 KB Output is correct
41 Correct 15 ms 29012 KB Output is correct
42 Correct 24 ms 45928 KB Output is correct
43 Correct 22 ms 45908 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 24276 KB Output is correct
2 Correct 15 ms 24020 KB Output is correct
3 Correct 15 ms 23980 KB Output is correct
4 Correct 13 ms 24000 KB Output is correct
5 Correct 12 ms 24020 KB Output is correct
6 Correct 16 ms 24008 KB Output is correct
7 Correct 13 ms 24020 KB Output is correct
8 Correct 13 ms 23964 KB Output is correct
9 Correct 14 ms 24020 KB Output is correct
10 Correct 14 ms 23944 KB Output is correct
11 Correct 720 ms 388532 KB Output is correct
12 Correct 14 ms 23928 KB Output is correct
13 Correct 1182 ms 401944 KB Output is correct
14 Correct 14 ms 24020 KB Output is correct
15 Correct 625 ms 388572 KB Output is correct
16 Correct 686 ms 388400 KB Output is correct
17 Correct 1175 ms 402112 KB Output is correct
18 Correct 743 ms 388420 KB Output is correct

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23892 KB Output is correct
2 Correct 12 ms 23972 KB Output is correct
3 Correct 21 ms 44824 KB Output is correct
4 Correct 20 ms 44244 KB Output is correct
5 Correct 20 ms 44172 KB Output is correct
6 Correct 21 ms 44256 KB Output is correct
7 Correct 20 ms 44244 KB Output is correct
8 Correct 12 ms 23892 KB Output is correct
9 Correct 12 ms 23872 KB Output is correct
10 Correct 14 ms 23872 KB Output is correct
11 Correct 21 ms 44124 KB Output is correct
12 Correct 20 ms 44180 KB Output is correct
13 Correct 13 ms 23892 KB Output is correct
14 Correct 21 ms 44092 KB Output is correct
15 Correct 13 ms 23892 KB Output is correct
16 Correct 23 ms 44168 KB Output is correct
17 Correct 14 ms 23892 KB Output is correct
18 Correct 22 ms 44244 KB Output is correct
19 Correct 14 ms 23904 KB Output is correct
20 Correct 21 ms 44092 KB Output is correct
21 Correct 24 ms 44180 KB Output is correct
22 Correct 12 ms 23892 KB Output is correct
23 Correct 22 ms 45396 KB Output is correct
24 Correct 13 ms 23892 KB Output is correct
25 Correct 22 ms 45260 KB Output is correct
26 Correct 23 ms 44672 KB Output is correct
27 Correct 24 ms 45588 KB Output is correct
28 Correct 22 ms 44560 KB Output is correct
29 Correct 23 ms 45524 KB Output is correct
30 Correct 24 ms 45108 KB Output is correct
31 Correct 22 ms 45696 KB Output is correct
32 Correct 22 ms 45036 KB Output is correct
33 Correct 22 ms 45580 KB Output is correct
34 Correct 24 ms 45780 KB Output is correct
35 Correct 19 ms 34516 KB Output is correct
36 Correct 18 ms 34448 KB Output is correct
37 Correct 19 ms 34472 KB Output is correct
38 Correct 15 ms 29012 KB Output is correct
39 Correct 16 ms 29080 KB Output is correct
40 Correct 23 ms 45900 KB Output is correct
41 Correct 15 ms 29012 KB Output is correct
42 Correct 24 ms 45928 KB Output is correct
43 Correct 22 ms 45908 KB Output is correct
44 Runtime error 1265 ms 524288 KB Execution killed with signal 9
45 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23892 KB Output is correct
2 Correct 12 ms 23972 KB Output is correct
3 Correct 21 ms 44824 KB Output is correct
4 Correct 20 ms 44244 KB Output is correct
5 Correct 20 ms 44172 KB Output is correct
6 Correct 21 ms 44256 KB Output is correct
7 Correct 20 ms 44244 KB Output is correct
8 Correct 12 ms 23892 KB Output is correct
9 Correct 12 ms 23872 KB Output is correct
10 Correct 14 ms 23872 KB Output is correct
11 Correct 21 ms 44124 KB Output is correct
12 Correct 20 ms 44180 KB Output is correct
13 Correct 13 ms 23892 KB Output is correct
14 Correct 21 ms 44092 KB Output is correct
15 Correct 13 ms 23892 KB Output is correct
16 Correct 23 ms 44168 KB Output is correct
17 Correct 14 ms 23892 KB Output is correct
18 Correct 22 ms 44244 KB Output is correct
19 Correct 14 ms 23904 KB Output is correct
20 Correct 21 ms 44092 KB Output is correct
21 Correct 24 ms 44180 KB Output is correct
22 Correct 12 ms 23892 KB Output is correct
23 Correct 22 ms 45396 KB Output is correct
24 Correct 13 ms 23892 KB Output is correct
25 Correct 22 ms 45260 KB Output is correct
26 Correct 23 ms 44672 KB Output is correct
27 Correct 24 ms 45588 KB Output is correct
28 Correct 22 ms 44560 KB Output is correct
29 Correct 23 ms 45524 KB Output is correct
30 Correct 24 ms 45108 KB Output is correct
31 Correct 22 ms 45696 KB Output is correct
32 Correct 22 ms 45036 KB Output is correct
33 Correct 22 ms 45580 KB Output is correct
34 Correct 24 ms 45780 KB Output is correct
35 Correct 19 ms 34516 KB Output is correct
36 Correct 18 ms 34448 KB Output is correct
37 Correct 19 ms 34472 KB Output is correct
38 Correct 15 ms 29012 KB Output is correct
39 Correct 16 ms 29080 KB Output is correct
40 Correct 23 ms 45900 KB Output is correct
41 Correct 15 ms 29012 KB Output is correct
42 Correct 24 ms 45928 KB Output is correct
43 Correct 22 ms 45908 KB Output is correct
44 Correct 13 ms 23892 KB Output is correct
45 Correct 501 ms 364232 KB Output is correct
46 Execution timed out 3112 ms 319096 KB Time limit exceeded
47 Halted 0 ms 0 KB -