oj.uz

답안 #771918

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
771918 2023-07-03T11:55:07 Z GrindMachine Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 420 ms 28544 KB 
// Om Namah Shivaya

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x, y) ((x + y - 1) / (y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl

#define rep(i, n) for(int i = 0; i < n; ++i)
#define rep1(i, n) for(int i = 1; i <= n; ++i)
#define rev(i, s, e) for(int i = s; i >= e; --i)
#define trav(i, a) for(auto &i : a)

template<typename T>
void amin(T &a, T b) {
    a = min(a, b);
}

template<typename T>
void amax(T &a, T b) {
    a = max(a, b);
}

#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif

/*



*/

const int MOD = 1e9 + 7;
const int N = 5e4 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;

set<int> adj[N];

void solve(int test_case)
{
    int n,k; cin >> n >> k;
    rep(i,n){
        int s; cin >> s;
        rep(j,s){
            int v; cin >> v;
            adj[i].insert(v);
        }
        adj[i].insert(i);
    }

    set<pii> st;
    rep(i,n){
        int d = sz(adj[i]);
        st.insert({d,i});
    }

    vector<bool> dp(1<<(k+1));
    int ans = 0;

    while(!st.empty()){
        auto [d,s] = *st.begin();
        st.erase(st.begin());

        assert(d <= k);
    
        vector<int> nodes(all(adj[s]));
        int siz = sz(nodes);
        fill(all(dp),0);
        dp[0] = 1;

        rep1(mask,(1<<siz)-1){
            int msb = -1;
            rev(bit,siz-1,0){
                if(mask & (1<<bit)){
                    msb = bit;
                    break;
                }
            }

            int u = nodes[msb];

            bool ok = true;
            rep(i,siz){
                if(mask & (1<<i)){
                    int v = nodes[i];
                    if(!adj[u].count(v)){
                        ok = false;
                        break;
                    }
                }
            }

            if(ok){
                dp[mask] = dp[mask^(1<<msb)];
            }
        }

        rep(mask,1<<siz){
            if(dp[mask]){
                int cnt = setbits(mask);
                amax(ans,cnt);
            }
        }

        trav(v,adj[s]){
            if(v == s) conts;
            int d2 = sz(adj[v]);
            st.erase({d2,v});
            adj[v].erase(s);
            d2--;
            st.insert({d2,v});
        }
    }

    cout << ans << endl;
}

int main()
{
    fastio;

    int t = 1;
    // cin >> t;

    rep1(i, t) {
        solve(i);
    }

    return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 5 ms 3540 KB Output is correct
4 Correct 5 ms 3540 KB Output is correct
5 Correct 4 ms 3540 KB Output is correct
6 Correct 5 ms 3540 KB Output is correct
7 Correct 5 ms 3540 KB Output is correct
8 Correct 2 ms 3028 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 2 ms 3028 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 5 ms 3540 KB Output is correct
4 Correct 5 ms 3540 KB Output is correct
5 Correct 4 ms 3540 KB Output is correct
6 Correct 5 ms 3540 KB Output is correct
7 Correct 5 ms 3540 KB Output is correct
8 Correct 2 ms 3028 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 2 ms 3028 KB Output is correct
11 Correct 5 ms 3540 KB Output is correct
12 Correct 7 ms 3540 KB Output is correct
13 Correct 1 ms 2664 KB Output is correct
14 Correct 5 ms 3540 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 5 ms 3540 KB Output is correct
17 Correct 1 ms 2644 KB Output is correct
18 Correct 5 ms 3540 KB Output is correct
19 Correct 2 ms 3028 KB Output is correct
20 Correct 4 ms 3284 KB Output is correct
21 Correct 5 ms 3284 KB Output is correct
22 Correct 4 ms 3156 KB Output is correct
23 Correct 6 ms 3668 KB Output is correct
24 Correct 2 ms 3028 KB Output is correct
25 Correct 6 ms 3668 KB Output is correct
26 Correct 6 ms 3668 KB Output is correct
27 Correct 5 ms 3540 KB Output is correct
28 Correct 6 ms 3676 KB Output is correct
29 Correct 5 ms 3540 KB Output is correct
30 Correct 8 ms 3768 KB Output is correct
31 Correct 7 ms 3668 KB Output is correct
32 Correct 7 ms 3724 KB Output is correct
33 Correct 6 ms 3668 KB Output is correct
34 Correct 6 ms 3668 KB Output is correct
35 Correct 4 ms 3156 KB Output is correct
36 Correct 4 ms 3156 KB Output is correct
37 Correct 4 ms 3156 KB Output is correct
38 Correct 3 ms 2900 KB Output is correct
39 Correct 3 ms 2992 KB Output is correct
40 Correct 9 ms 4052 KB Output is correct
41 Correct 3 ms 2900 KB Output is correct
42 Correct 9 ms 4052 KB Output is correct
43 Correct 9 ms 4084 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3028 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 1 ms 2644 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 2 ms 2648 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 387 ms 28476 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 393 ms 28488 KB Output is correct
14 Correct 1 ms 2644 KB Output is correct
15 Correct 420 ms 28452 KB Output is correct
16 Correct 389 ms 28484 KB Output is correct
17 Correct 395 ms 28544 KB Output is correct
18 Correct 397 ms 28480 KB Output is correct

Subtask #4
38.0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 5 ms 3540 KB Output is correct
4 Correct 5 ms 3540 KB Output is correct
5 Correct 4 ms 3540 KB Output is correct
6 Correct 5 ms 3540 KB Output is correct
7 Correct 5 ms 3540 KB Output is correct
8 Correct 2 ms 3028 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 2 ms 3028 KB Output is correct
11 Correct 5 ms 3540 KB Output is correct
12 Correct 7 ms 3540 KB Output is correct
13 Correct 1 ms 2664 KB Output is correct
14 Correct 5 ms 3540 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 5 ms 3540 KB Output is correct
17 Correct 1 ms 2644 KB Output is correct
18 Correct 5 ms 3540 KB Output is correct
19 Correct 2 ms 3028 KB Output is correct
20 Correct 4 ms 3284 KB Output is correct
21 Correct 5 ms 3284 KB Output is correct
22 Correct 4 ms 3156 KB Output is correct
23 Correct 6 ms 3668 KB Output is correct
24 Correct 2 ms 3028 KB Output is correct
25 Correct 6 ms 3668 KB Output is correct
26 Correct 6 ms 3668 KB Output is correct
27 Correct 5 ms 3540 KB Output is correct
28 Correct 6 ms 3676 KB Output is correct
29 Correct 5 ms 3540 KB Output is correct
30 Correct 8 ms 3768 KB Output is correct
31 Correct 7 ms 3668 KB Output is correct
32 Correct 7 ms 3724 KB Output is correct
33 Correct 6 ms 3668 KB Output is correct
34 Correct 6 ms 3668 KB Output is correct
35 Correct 4 ms 3156 KB Output is correct
36 Correct 4 ms 3156 KB Output is correct
37 Correct 4 ms 3156 KB Output is correct
38 Correct 3 ms 2900 KB Output is correct
39 Correct 3 ms 2992 KB Output is correct
40 Correct 9 ms 4052 KB Output is correct
41 Correct 3 ms 2900 KB Output is correct
42 Correct 9 ms 4052 KB Output is correct
43 Correct 9 ms 4084 KB Output is correct
44 Correct 52 ms 4980 KB Output is correct
45 Correct 1 ms 2668 KB Output is correct
46 Correct 11 ms 4088 KB Output is correct
47 Correct 21 ms 5156 KB Output is correct
48 Correct 9 ms 4124 KB Output is correct
49 Correct 21 ms 5204 KB Output is correct
50 Correct 22 ms 5076 KB Output is correct
51 Correct 106 ms 7260 KB Output is correct
52 Correct 5 ms 3668 KB Output is correct
53 Correct 109 ms 7768 KB Output is correct
54 Correct 145 ms 7784 KB Output is correct
55 Correct 12 ms 3668 KB Output is correct
56 Correct 6 ms 3576 KB Output is correct
57 Correct 3 ms 3060 KB Output is correct
58 Correct 116 ms 7720 KB Output is correct
59 Correct 8 ms 4148 KB Output is correct
60 Correct 11 ms 3672 KB Output is correct
61 Correct 8 ms 4180 KB Output is correct
62 Correct 8 ms 4088 KB Output is correct
63 Correct 55 ms 5120 KB Output is correct
64 Correct 33 ms 4948 KB Output is correct
65 Correct 8 ms 4052 KB Output is correct
66 Correct 8 ms 4180 KB Output is correct
67 Correct 43 ms 5632 KB Output is correct
68 Correct 34 ms 4948 KB Output is correct
69 Correct 11 ms 4052 KB Output is correct
70 Correct 20 ms 5008 KB Output is correct
71 Correct 42 ms 5588 KB Output is correct
72 Correct 37 ms 5428 KB Output is correct
73 Correct 6 ms 3540 KB Output is correct
74 Correct 21 ms 4916 KB Output is correct
75 Correct 41 ms 5460 KB Output is correct
76 Correct 14 ms 4536 KB Output is correct
77 Correct 50 ms 6000 KB Output is correct
78 Correct 6 ms 3540 KB Output is correct
79 Correct 24 ms 4308 KB Output is correct
80 Correct 13 ms 4400 KB Output is correct
81 Correct 49 ms 6100 KB Output is correct
82 Correct 4 ms 2936 KB Output is correct
83 Correct 25 ms 4348 KB Output is correct
84 Correct 32 ms 5460 KB Output is correct
85 Correct 3 ms 3028 KB Output is correct
86 Correct 39 ms 5460 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 5 ms 3540 KB Output is correct
4 Correct 5 ms 3540 KB Output is correct
5 Correct 4 ms 3540 KB Output is correct
6 Correct 5 ms 3540 KB Output is correct
7 Correct 5 ms 3540 KB Output is correct
8 Correct 2 ms 3028 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 2 ms 3028 KB Output is correct
11 Correct 5 ms 3540 KB Output is correct
12 Correct 7 ms 3540 KB Output is correct
13 Correct 1 ms 2664 KB Output is correct
14 Correct 5 ms 3540 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 5 ms 3540 KB Output is correct
17 Correct 1 ms 2644 KB Output is correct
18 Correct 5 ms 3540 KB Output is correct
19 Correct 2 ms 3028 KB Output is correct
20 Correct 4 ms 3284 KB Output is correct
21 Correct 5 ms 3284 KB Output is correct
22 Correct 4 ms 3156 KB Output is correct
23 Correct 6 ms 3668 KB Output is correct
24 Correct 2 ms 3028 KB Output is correct
25 Correct 6 ms 3668 KB Output is correct
26 Correct 6 ms 3668 KB Output is correct
27 Correct 5 ms 3540 KB Output is correct
28 Correct 6 ms 3676 KB Output is correct
29 Correct 5 ms 3540 KB Output is correct
30 Correct 8 ms 3768 KB Output is correct
31 Correct 7 ms 3668 KB Output is correct
32 Correct 7 ms 3724 KB Output is correct
33 Correct 6 ms 3668 KB Output is correct
34 Correct 6 ms 3668 KB Output is correct
35 Correct 4 ms 3156 KB Output is correct
36 Correct 4 ms 3156 KB Output is correct
37 Correct 4 ms 3156 KB Output is correct
38 Correct 3 ms 2900 KB Output is correct
39 Correct 3 ms 2992 KB Output is correct
40 Correct 9 ms 4052 KB Output is correct
41 Correct 3 ms 2900 KB Output is correct
42 Correct 9 ms 4052 KB Output is correct
43 Correct 9 ms 4084 KB Output is correct
44 Correct 1 ms 2644 KB Output is correct
45 Correct 177 ms 22908 KB Output is correct
46 Correct 67 ms 15316 KB Output is correct
47 Correct 172 ms 23220 KB Output is correct
48 Correct 167 ms 23148 KB Output is correct
49 Correct 48 ms 12660 KB Output is correct
50 Correct 165 ms 28400 KB Output is correct
51 Correct 172 ms 23196 KB Output is correct
52 Correct 51 ms 12708 KB Output is correct
53 Correct 45 ms 12720 KB Output is correct
54 Correct 17 ms 7412 KB Output is correct
55 Correct 182 ms 28444 KB Output is correct
56 Correct 30 ms 10076 KB Output is correct
57 Correct 50 ms 12716 KB Output is correct
58 Correct 60 ms 15276 KB Output is correct
59 Correct 29 ms 10056 KB Output is correct
60 Correct 30 ms 10056 KB Output is correct
61 Correct 58 ms 15280 KB Output is correct
62 Correct 53 ms 12712 KB Output is correct
63 Correct 89 ms 16604 KB Output is correct
64 Correct 30 ms 9968 KB Output is correct
65 Correct 123 ms 19212 KB Output is correct
66 Correct 46 ms 12680 KB Output is correct
67 Correct 90 ms 16652 KB Output is correct
68 Correct 116 ms 18576 KB Output is correct
69 Correct 116 ms 19284 KB Output is correct
70 Correct 47 ms 12644 KB Output is correct
71 Correct 120 ms 18644 KB Output is correct
72 Correct 90 ms 16224 KB Output is correct
73 Correct 133 ms 20952 KB Output is correct
74 Correct 49 ms 12628 KB Output is correct
75 Correct 44 ms 10172 KB Output is correct
76 Correct 86 ms 16204 KB Output is correct
77 Correct 134 ms 20852 KB Output is correct
78 Correct 69 ms 11792 KB Output is correct
79 Correct 44 ms 10068 KB Output is correct
80 Correct 25 ms 6416 KB Output is correct
81 Correct 61 ms 11716 KB Output is correct
82 Correct 97 ms 17868 KB Output is correct
83 Correct 21 ms 6356 KB Output is correct
84 Correct 98 ms 17856 KB Output is correct