oj.uz

답안 #136004

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
136004 2019-07-24T15:16:27 Z popovicirobert Political Development (BOI17_politicaldevelopment) C++14
100 / 100
 896 ms 29048 KB 
#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
// 217
// 44


/*const int MOD = (int) 1e9 + 7;

inline int lgput(int a, int b) {
    int ans = 1;
    while(b > 0) {
        if(b & 1) ans = (1LL * ans * a) % MOD;
        b >>= 1;
        a = (1LL * a * a) % MOD;
    }
    return ans;
}

inline void mod(int &x) {
    if(x >= MOD)
        x -= MOD;
}

inline void add(int &x, int y) {
    x += y;
    mod(x);
}

inline void sub(int &x, int y) {
    x += MOD - y;
    mod(x);
}

inline void mul(int &x, int y) {
    x = (1LL * x * y) % MOD;
}*/

/*int fact[], invfact[];

inline void prec(int n) {
    fact[0] = 1;
    for(int i = 1; i <= n; i++) {
        fact[i] = (1LL * fact[i - 1] * i) % MOD;
    }
    invfact[n] = lgput(fact[n], MOD - 2);
    for(int i = n - 1; i >= 0; i--) {
        invfact[i] = (1LL * invfact[i + 1] * (i + 1)) % MOD;
    }
}

inline int comb(int n, int k) {
    if(n < k) return 0;
    return (1LL * fact[n] * (1LL * invfact[k] * invfact[n - k] % MOD)) % MOD;
}*/

using namespace std;

const int MAXN = 50000;

set <int> g[MAXN + 1];
bool vis[MAXN + 1];

int main() {
    //ifstream cin("A.in");
    //ofstream cout("A.out");
    int i, n, k;
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);

    cin >> n >> k;

    for(i = 1; i <= n; i++) {
        int sz;
        cin >> sz;
        while(sz--) {
            int nod;
            cin >> nod;
            g[i].insert(nod + 1);
        }
    }

    set < pair <int, int> > Q;
    for(i = 1; i <= n; i++) {
        Q.insert({g[i].size(), i});
    }

    int ans = 1;
    while(Q.size()) {
        int nod = Q.begin() -> second;
        Q.erase(Q.begin());

        vector <int> nodes;
        for(auto it : g[nod]) {
            nodes.push_back(it);
        }

        int sz = nodes.size();
        for(int conf = 0; conf < (1 << sz); conf++) {
            int num = __builtin_popcount(conf);
            if(num >= k || num < ans) {
                continue;
            }

            vector <int> cur;
            for(i = 0; i < sz; i++) {
                if(conf & (1 << i)) {
                    vis[nodes[i]] = 1;
                    cur.push_back(nodes[i]);
                }
            }

            bool ok = 1;
            for(auto it : cur) {
                for(auto itr : cur) {
                    if(it != itr && g[it].find(itr) == g[it].end()) {
                        ok = 0;
                        break;
                    }
                }
                if(!ok) {
                    break;
                }
            }

            if(ok) {
                ans = max(ans, num + 1);
            }

            for(auto it : cur) {
                vis[it] = 0;
            }
        }

        for(auto it : g[nod]) {
            Q.erase({g[it].size(), it});
            g[it].erase(nod);
            Q.insert({g[it].size(), it});
        }
    }

    cout << ans;

    return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2684 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 10 ms 3448 KB Output is correct
4 Correct 10 ms 3448 KB Output is correct
5 Correct 10 ms 3448 KB Output is correct
6 Correct 10 ms 3448 KB Output is correct
7 Correct 10 ms 3420 KB Output is correct
8 Correct 9 ms 2936 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 5 ms 2936 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2684 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 10 ms 3448 KB Output is correct
4 Correct 10 ms 3448 KB Output is correct
5 Correct 10 ms 3448 KB Output is correct
6 Correct 10 ms 3448 KB Output is correct
7 Correct 10 ms 3420 KB Output is correct
8 Correct 9 ms 2936 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 5 ms 2936 KB Output is correct
11 Correct 10 ms 3448 KB Output is correct
12 Correct 11 ms 3448 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 12 ms 3424 KB Output is correct
15 Correct 5 ms 2808 KB Output is correct
16 Correct 10 ms 3448 KB Output is correct
17 Correct 5 ms 2680 KB Output is correct
18 Correct 10 ms 3448 KB Output is correct
19 Correct 6 ms 2936 KB Output is correct
20 Correct 9 ms 3192 KB Output is correct
21 Correct 8 ms 3196 KB Output is correct
22 Correct 7 ms 2936 KB Output is correct
23 Correct 12 ms 3704 KB Output is correct
24 Correct 5 ms 2936 KB Output is correct
25 Correct 11 ms 3576 KB Output is correct
26 Correct 11 ms 3576 KB Output is correct
27 Correct 9 ms 3448 KB Output is correct
28 Correct 11 ms 3576 KB Output is correct
29 Correct 9 ms 3448 KB Output is correct
30 Correct 15 ms 3704 KB Output is correct
31 Correct 12 ms 3704 KB Output is correct
32 Correct 12 ms 3580 KB Output is correct
33 Correct 11 ms 3704 KB Output is correct
34 Correct 12 ms 3704 KB Output is correct
35 Correct 8 ms 3192 KB Output is correct
36 Correct 8 ms 3196 KB Output is correct
37 Correct 8 ms 3192 KB Output is correct
38 Correct 7 ms 3064 KB Output is correct
39 Correct 7 ms 2936 KB Output is correct
40 Correct 16 ms 3960 KB Output is correct
41 Correct 7 ms 2936 KB Output is correct
42 Correct 16 ms 3960 KB Output is correct
43 Correct 16 ms 3960 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 2936 KB Output is correct
2 Correct 5 ms 2680 KB Output is correct
3 Correct 5 ms 2684 KB Output is correct
4 Correct 5 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 4 ms 2680 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 5 ms 2680 KB Output is correct
10 Correct 4 ms 2684 KB Output is correct
11 Correct 896 ms 28912 KB Output is correct
12 Correct 7 ms 2808 KB Output is correct
13 Correct 787 ms 28896 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 759 ms 29048 KB Output is correct
16 Correct 750 ms 28772 KB Output is correct
17 Correct 756 ms 29020 KB Output is correct
18 Correct 757 ms 28920 KB Output is correct

Subtask #4
38.0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2684 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 10 ms 3448 KB Output is correct
4 Correct 10 ms 3448 KB Output is correct
5 Correct 10 ms 3448 KB Output is correct
6 Correct 10 ms 3448 KB Output is correct
7 Correct 10 ms 3420 KB Output is correct
8 Correct 9 ms 2936 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 5 ms 2936 KB Output is correct
11 Correct 10 ms 3448 KB Output is correct
12 Correct 11 ms 3448 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 12 ms 3424 KB Output is correct
15 Correct 5 ms 2808 KB Output is correct
16 Correct 10 ms 3448 KB Output is correct
17 Correct 5 ms 2680 KB Output is correct
18 Correct 10 ms 3448 KB Output is correct
19 Correct 6 ms 2936 KB Output is correct
20 Correct 9 ms 3192 KB Output is correct
21 Correct 8 ms 3196 KB Output is correct
22 Correct 7 ms 2936 KB Output is correct
23 Correct 12 ms 3704 KB Output is correct
24 Correct 5 ms 2936 KB Output is correct
25 Correct 11 ms 3576 KB Output is correct
26 Correct 11 ms 3576 KB Output is correct
27 Correct 9 ms 3448 KB Output is correct
28 Correct 11 ms 3576 KB Output is correct
29 Correct 9 ms 3448 KB Output is correct
30 Correct 15 ms 3704 KB Output is correct
31 Correct 12 ms 3704 KB Output is correct
32 Correct 12 ms 3580 KB Output is correct
33 Correct 11 ms 3704 KB Output is correct
34 Correct 12 ms 3704 KB Output is correct
35 Correct 8 ms 3192 KB Output is correct
36 Correct 8 ms 3196 KB Output is correct
37 Correct 8 ms 3192 KB Output is correct
38 Correct 7 ms 3064 KB Output is correct
39 Correct 7 ms 2936 KB Output is correct
40 Correct 16 ms 3960 KB Output is correct
41 Correct 7 ms 2936 KB Output is correct
42 Correct 16 ms 3960 KB Output is correct
43 Correct 16 ms 3960 KB Output is correct
44 Correct 23 ms 4984 KB Output is correct
45 Correct 4 ms 2684 KB Output is correct
46 Correct 16 ms 3964 KB Output is correct
47 Correct 36 ms 4984 KB Output is correct
48 Correct 16 ms 3960 KB Output is correct
49 Correct 34 ms 4984 KB Output is correct
50 Correct 37 ms 4984 KB Output is correct
51 Correct 336 ms 7032 KB Output is correct
52 Correct 10 ms 3452 KB Output is correct
53 Correct 650 ms 7620 KB Output is correct
54 Correct 669 ms 7644 KB Output is correct
55 Correct 10 ms 3448 KB Output is correct
56 Correct 10 ms 3448 KB Output is correct
57 Correct 5 ms 2964 KB Output is correct
58 Correct 655 ms 7628 KB Output is correct
59 Correct 13 ms 3960 KB Output is correct
60 Correct 10 ms 3448 KB Output is correct
61 Correct 13 ms 3964 KB Output is correct
62 Correct 15 ms 3960 KB Output is correct
63 Correct 27 ms 4984 KB Output is correct
64 Correct 19 ms 4728 KB Output is correct
65 Correct 14 ms 3832 KB Output is correct
66 Correct 13 ms 3960 KB Output is correct
67 Correct 55 ms 5396 KB Output is correct
68 Correct 19 ms 4728 KB Output is correct
69 Correct 14 ms 3836 KB Output is correct
70 Correct 26 ms 4744 KB Output is correct
71 Correct 55 ms 5368 KB Output is correct
72 Correct 47 ms 5364 KB Output is correct
73 Correct 9 ms 3504 KB Output is correct
74 Correct 27 ms 4760 KB Output is correct
75 Correct 48 ms 5368 KB Output is correct
76 Correct 20 ms 4344 KB Output is correct
77 Correct 146 ms 6008 KB Output is correct
78 Correct 9 ms 3448 KB Output is correct
79 Correct 71 ms 4344 KB Output is correct
80 Correct 21 ms 4344 KB Output is correct
81 Correct 149 ms 5948 KB Output is correct
82 Correct 8 ms 2936 KB Output is correct
83 Correct 75 ms 4348 KB Output is correct
84 Correct 60 ms 5308 KB Output is correct
85 Correct 8 ms 3080 KB Output is correct
86 Correct 32 ms 5240 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2684 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 10 ms 3448 KB Output is correct
4 Correct 10 ms 3448 KB Output is correct
5 Correct 10 ms 3448 KB Output is correct
6 Correct 10 ms 3448 KB Output is correct
7 Correct 10 ms 3420 KB Output is correct
8 Correct 9 ms 2936 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 5 ms 2936 KB Output is correct
11 Correct 10 ms 3448 KB Output is correct
12 Correct 11 ms 3448 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 12 ms 3424 KB Output is correct
15 Correct 5 ms 2808 KB Output is correct
16 Correct 10 ms 3448 KB Output is correct
17 Correct 5 ms 2680 KB Output is correct
18 Correct 10 ms 3448 KB Output is correct
19 Correct 6 ms 2936 KB Output is correct
20 Correct 9 ms 3192 KB Output is correct
21 Correct 8 ms 3196 KB Output is correct
22 Correct 7 ms 2936 KB Output is correct
23 Correct 12 ms 3704 KB Output is correct
24 Correct 5 ms 2936 KB Output is correct
25 Correct 11 ms 3576 KB Output is correct
26 Correct 11 ms 3576 KB Output is correct
27 Correct 9 ms 3448 KB Output is correct
28 Correct 11 ms 3576 KB Output is correct
29 Correct 9 ms 3448 KB Output is correct
30 Correct 15 ms 3704 KB Output is correct
31 Correct 12 ms 3704 KB Output is correct
32 Correct 12 ms 3580 KB Output is correct
33 Correct 11 ms 3704 KB Output is correct
34 Correct 12 ms 3704 KB Output is correct
35 Correct 8 ms 3192 KB Output is correct
36 Correct 8 ms 3196 KB Output is correct
37 Correct 8 ms 3192 KB Output is correct
38 Correct 7 ms 3064 KB Output is correct
39 Correct 7 ms 2936 KB Output is correct
40 Correct 16 ms 3960 KB Output is correct
41 Correct 7 ms 2936 KB Output is correct
42 Correct 16 ms 3960 KB Output is correct
43 Correct 16 ms 3960 KB Output is correct
44 Correct 4 ms 2680 KB Output is correct
45 Correct 296 ms 21012 KB Output is correct
46 Correct 117 ms 13176 KB Output is correct
47 Correct 301 ms 21040 KB Output is correct
48 Correct 300 ms 21112 KB Output is correct
49 Correct 80 ms 10364 KB Output is correct
50 Correct 372 ms 26236 KB Output is correct
51 Correct 311 ms 20992 KB Output is correct
52 Correct 77 ms 10388 KB Output is correct
53 Correct 80 ms 10488 KB Output is correct
54 Correct 20 ms 5112 KB Output is correct
55 Correct 374 ms 26224 KB Output is correct
56 Correct 46 ms 7800 KB Output is correct
57 Correct 77 ms 10360 KB Output is correct
58 Correct 92 ms 13092 KB Output is correct
59 Correct 48 ms 7800 KB Output is correct
60 Correct 49 ms 7804 KB Output is correct
61 Correct 92 ms 13048 KB Output is correct
62 Correct 71 ms 10488 KB Output is correct
63 Correct 154 ms 14436 KB Output is correct
64 Correct 46 ms 7800 KB Output is correct
65 Correct 201 ms 17016 KB Output is correct
66 Correct 69 ms 10360 KB Output is correct
67 Correct 152 ms 14428 KB Output is correct
68 Correct 189 ms 16504 KB Output is correct
69 Correct 200 ms 17272 KB Output is correct
70 Correct 78 ms 10488 KB Output is correct
71 Correct 204 ms 16376 KB Output is correct
72 Correct 140 ms 13944 KB Output is correct
73 Correct 252 ms 18808 KB Output is correct
74 Correct 78 ms 10568 KB Output is correct
75 Correct 83 ms 9084 KB Output is correct
76 Correct 144 ms 13944 KB Output is correct
77 Correct 262 ms 18756 KB Output is correct
78 Correct 147 ms 10748 KB Output is correct
79 Correct 78 ms 9080 KB Output is correct
80 Correct 37 ms 5880 KB Output is correct
81 Correct 109 ms 10744 KB Output is correct
82 Correct 172 ms 15788 KB Output is correct
83 Correct 37 ms 5880 KB Output is correct
84 Correct 172 ms 15864 KB Output is correct