oj.uz

Submission #153980

# Submission time Handle Problem Language Result Execution time Memory
153980 2019-09-17T16:04:22 Z Swan Political Development (BOI17_politicaldevelopment) C++14
16 / 100
 3000 ms 156464 KB 
#include <bits/stdc++.h>
#define stop system("pause")
#define INP freopen("input.txt","r",stdin)
#define OUTP freopen("solve1.txt","w",stdout)
using namespace std;

typedef long long ll;

vector<vector<int>> v;

int ans = 0;
int n,k;

const int maxn = 1e5;
bitset<12> way[12];
int num[maxn];
map<pair<int,int>,bool> is_good;

bool check(int mask,int cnt){
    int res = (1<<22)-1;
    for(int i(0); i < cnt+1;i++){
        if(mask&(1<<i)){
            int to = way[i].to_ullong();
            res&=to;
        }
    }
    for(int i(0); i < cnt+1;i++){
        if(mask&(1<<i)){
            int bit = res&(1<<i);
            if(!bit)return 0;
        }
    }
    return 1;
}

void solve(int u){
    int pnt = 0;
    vector<int> qwe;
    qwe.push_back(u);
    for(int i(0); i < 12;i++)way[i] = 0;
    for(int i(0); i < v[u].size();i++){
        way[pnt][pnt] = 1;
        num[v[u][i]] = pnt++;
        qwe.push_back(v[u][i]);
    }
    num[u] = pnt;
    way[pnt][pnt] = 1;
    for(int i(0); i < qwe.size();i++){
        for(int j(0); j < qwe.size();j++){
            bool f = (is_good[{qwe[i],qwe[j]}] && is_good[{qwe[j],qwe[i]}]);
            if(!f){
                continue;
            }
            way[num[qwe[i]]][num[qwe[j]]] = 1;
        }
    }
    int lim = (1<<(v[u].size()+1));
    for(int i(0); i < lim;i++){
        bool f = check(i,v[u].size());
        if(!f)continue;
        int x = i;
        int now = 0;
        while(x){
            now+=(x%2);
            x/=2;
        }
        //if(u == 0)cout << i << ' ' << now << endl;
        ans = max(now,ans);
    }
}

main()
{
    ios_base::sync_with_stdio(0);
    cin >> n >> k;
    v.resize(n+2);
    for(int i(0); i < n;i++){
        int sz; cin >> sz;
        for(int j(0); j < sz;j++){
            int x; cin >> x;
            v[i].push_back(x);
            is_good[{i,x}] = 1;
        }
    }
    for(int i(0); i < n;i++){
        if(v[i].size() < 10)solve(i);
    }
    cout << ans;
    return 0;
}
/*
3 10
0
0
0
*/

Compilation message

politicaldevelopment.cpp: In function 'void solve(int)':
politicaldevelopment.cpp:41:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i(0); i < v[u].size();i++){
                   ~~^~~~~~~~~~~~~
politicaldevelopment.cpp:48:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i(0); i < qwe.size();i++){
                   ~~^~~~~~~~~~~~
politicaldevelopment.cpp:49:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j(0); j < qwe.size();j++){
                       ~~^~~~~~~~~~~~
politicaldevelopment.cpp: At global scope:
politicaldevelopment.cpp:72:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 27 ms 2808 KB Output is correct
4 Correct 7 ms 1688 KB Output is correct
5 Correct 10 ms 1656 KB Output is correct
6 Correct 12 ms 1656 KB Output is correct
7 Correct 12 ms 1656 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 760 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 27 ms 2808 KB Output is correct
4 Correct 7 ms 1688 KB Output is correct
5 Correct 10 ms 1656 KB Output is correct
6 Correct 12 ms 1656 KB Output is correct
7 Correct 12 ms 1656 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 760 KB Output is correct
11 Correct 10 ms 1616 KB Output is correct
12 Correct 11 ms 1656 KB Output is correct
13 Correct 2 ms 420 KB Output is correct
14 Correct 10 ms 1656 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 11 ms 1656 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 12 ms 1628 KB Output is correct
19 Correct 4 ms 760 KB Output is correct
20 Correct 10 ms 1236 KB Output is correct
21 Correct 10 ms 1272 KB Output is correct
22 Correct 4 ms 812 KB Output is correct
23 Correct 33 ms 3448 KB Output is correct
24 Correct 5 ms 888 KB Output is correct
25 Correct 35 ms 3512 KB Output is correct
26 Correct 28 ms 3064 KB Output is correct
27 Correct 20 ms 2296 KB Output is correct
28 Correct 29 ms 3064 KB Output is correct
29 Correct 19 ms 2296 KB Output is correct
30 Correct 25 ms 2680 KB Output is correct
31 Correct 36 ms 3448 KB Output is correct
32 Correct 25 ms 2680 KB Output is correct
33 Correct 32 ms 3448 KB Output is correct
34 Correct 32 ms 3340 KB Output is correct
35 Correct 17 ms 1912 KB Output is correct
36 Correct 16 ms 1912 KB Output is correct
37 Correct 15 ms 1840 KB Output is correct
38 Correct 7 ms 1016 KB Output is correct
39 Correct 8 ms 1016 KB Output is correct
40 Correct 96 ms 6392 KB Output is correct
41 Correct 7 ms 1016 KB Output is correct
42 Correct 81 ms 6392 KB Output is correct
43 Correct 96 ms 6264 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 632 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 380 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Execution timed out 3094 ms 156464 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 27 ms 2808 KB Output is correct
4 Correct 7 ms 1688 KB Output is correct
5 Correct 10 ms 1656 KB Output is correct
6 Correct 12 ms 1656 KB Output is correct
7 Correct 12 ms 1656 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 760 KB Output is correct
11 Correct 10 ms 1616 KB Output is correct
12 Correct 11 ms 1656 KB Output is correct
13 Correct 2 ms 420 KB Output is correct
14 Correct 10 ms 1656 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 11 ms 1656 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 12 ms 1628 KB Output is correct
19 Correct 4 ms 760 KB Output is correct
20 Correct 10 ms 1236 KB Output is correct
21 Correct 10 ms 1272 KB Output is correct
22 Correct 4 ms 812 KB Output is correct
23 Correct 33 ms 3448 KB Output is correct
24 Correct 5 ms 888 KB Output is correct
25 Correct 35 ms 3512 KB Output is correct
26 Correct 28 ms 3064 KB Output is correct
27 Correct 20 ms 2296 KB Output is correct
28 Correct 29 ms 3064 KB Output is correct
29 Correct 19 ms 2296 KB Output is correct
30 Correct 25 ms 2680 KB Output is correct
31 Correct 36 ms 3448 KB Output is correct
32 Correct 25 ms 2680 KB Output is correct
33 Correct 32 ms 3448 KB Output is correct
34 Correct 32 ms 3340 KB Output is correct
35 Correct 17 ms 1912 KB Output is correct
36 Correct 16 ms 1912 KB Output is correct
37 Correct 15 ms 1840 KB Output is correct
38 Correct 7 ms 1016 KB Output is correct
39 Correct 8 ms 1016 KB Output is correct
40 Correct 96 ms 6392 KB Output is correct
41 Correct 7 ms 1016 KB Output is correct
42 Correct 81 ms 6392 KB Output is correct
43 Correct 96 ms 6264 KB Output is correct
44 Correct 453 ms 3848 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Incorrect 98 ms 6440 KB Output isn't correct
47 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 27 ms 2808 KB Output is correct
4 Correct 7 ms 1688 KB Output is correct
5 Correct 10 ms 1656 KB Output is correct
6 Correct 12 ms 1656 KB Output is correct
7 Correct 12 ms 1656 KB Output is correct
8 Correct 4 ms 760 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 760 KB Output is correct
11 Correct 10 ms 1616 KB Output is correct
12 Correct 11 ms 1656 KB Output is correct
13 Correct 2 ms 420 KB Output is correct
14 Correct 10 ms 1656 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 11 ms 1656 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 12 ms 1628 KB Output is correct
19 Correct 4 ms 760 KB Output is correct
20 Correct 10 ms 1236 KB Output is correct
21 Correct 10 ms 1272 KB Output is correct
22 Correct 4 ms 812 KB Output is correct
23 Correct 33 ms 3448 KB Output is correct
24 Correct 5 ms 888 KB Output is correct
25 Correct 35 ms 3512 KB Output is correct
26 Correct 28 ms 3064 KB Output is correct
27 Correct 20 ms 2296 KB Output is correct
28 Correct 29 ms 3064 KB Output is correct
29 Correct 19 ms 2296 KB Output is correct
30 Correct 25 ms 2680 KB Output is correct
31 Correct 36 ms 3448 KB Output is correct
32 Correct 25 ms 2680 KB Output is correct
33 Correct 32 ms 3448 KB Output is correct
34 Correct 32 ms 3340 KB Output is correct
35 Correct 17 ms 1912 KB Output is correct
36 Correct 16 ms 1912 KB Output is correct
37 Correct 15 ms 1840 KB Output is correct
38 Correct 7 ms 1016 KB Output is correct
39 Correct 8 ms 1016 KB Output is correct
40 Correct 96 ms 6392 KB Output is correct
41 Correct 7 ms 1016 KB Output is correct
42 Correct 81 ms 6392 KB Output is correct
43 Correct 96 ms 6264 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Incorrect 1600 ms 89364 KB Output isn't correct
46 Halted 0 ms 0 KB -