oj.uz

Submission #631052

# Submission time Handle Problem Language Result Execution time Memory
631052 2022-08-17T15:32:01 Z bachhoangxuan Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 394 ms 7988 KB 
#include<bits/stdc++.h>
using namespace std;
#define maxn 50005
#define pii pair<int,int>
int n,k,deg[maxn],ans,len,num[maxn],res;
vector<int> edge[maxn],ver;
set<pii> s;
bool check[maxn];
bool ok(int mask){
    for(int i=0;i<len;i++){
        if(((mask>>i)&1)==0) continue;
        for(int j=0;j<i;j++){
            if(((mask>>j)&1)==0) continue;
            int a=ver[i],b=ver[j];
            if(*lower_bound(edge[a].begin(),edge[a].end(),b)!=b) return false;
        }
    }
    return true;
}
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);cout.tie(NULL);
    cin >> n >> k;
    for(int i=1;i<=n;i++){
        cin >> deg[i];s.insert({deg[i],i});
        for(int j=1;j<=deg[i];j++){
            int x;cin >> x;x++;
            edge[i].push_back(x);
        }
        sort(edge[i].begin(),edge[i].end());
    }
    for(int i=1;i<=n;i++){
        pii p=*s.begin();check[p.second]=true;
        s.erase(s.begin());ver={p.second};
        for(int v:edge[p.second]){
            if(check[v]) continue;
            ver.push_back(v);
        }
        len=(int)ver.size();
        for(int mask=(1<<len)-1;mask>=(1<<ans);mask--){
            int cnt=0;
            for(int j=0;j<len;j++) cnt+=(mask>>j)&1;
            if(cnt<=ans) continue;
            if(ok(mask)) ans=cnt;
        }
        for(int v:edge[p.second]){
            if(check[v]) continue;
            s.erase({deg[v],v});deg[v]--;
            s.insert({deg[v],v});
        }
    }
    cout << ans << '\n';
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 5 ms 1876 KB Output is correct
4 Correct 4 ms 1876 KB Output is correct
5 Correct 4 ms 1836 KB Output is correct
6 Correct 5 ms 1876 KB Output is correct
7 Correct 5 ms 1876 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 5 ms 1876 KB Output is correct
4 Correct 4 ms 1876 KB Output is correct
5 Correct 4 ms 1836 KB Output is correct
6 Correct 5 ms 1876 KB Output is correct
7 Correct 5 ms 1876 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct
11 Correct 4 ms 1888 KB Output is correct
12 Correct 4 ms 1876 KB Output is correct
13 Correct 1 ms 1492 KB Output is correct
14 Correct 4 ms 1876 KB Output is correct
15 Correct 1 ms 1492 KB Output is correct
16 Correct 4 ms 1876 KB Output is correct
17 Correct 1 ms 1492 KB Output is correct
18 Correct 5 ms 1956 KB Output is correct
19 Correct 2 ms 1732 KB Output is correct
20 Correct 3 ms 1876 KB Output is correct
21 Correct 3 ms 1876 KB Output is correct
22 Correct 2 ms 1748 KB Output is correct
23 Correct 5 ms 1888 KB Output is correct
24 Correct 2 ms 1748 KB Output is correct
25 Correct 6 ms 1876 KB Output is correct
26 Correct 6 ms 1824 KB Output is correct
27 Correct 6 ms 1876 KB Output is correct
28 Correct 6 ms 1876 KB Output is correct
29 Correct 5 ms 1876 KB Output is correct
30 Correct 5 ms 1876 KB Output is correct
31 Correct 6 ms 1888 KB Output is correct
32 Correct 5 ms 1876 KB Output is correct
33 Correct 6 ms 1876 KB Output is correct
34 Correct 6 ms 1884 KB Output is correct
35 Correct 3 ms 1620 KB Output is correct
36 Correct 3 ms 1620 KB Output is correct
37 Correct 3 ms 1620 KB Output is correct
38 Correct 3 ms 1620 KB Output is correct
39 Correct 3 ms 1620 KB Output is correct
40 Correct 11 ms 1876 KB Output is correct
41 Correct 2 ms 1580 KB Output is correct
42 Correct 7 ms 1932 KB Output is correct
43 Correct 7 ms 1876 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1748 KB Output is correct
2 Correct 2 ms 1492 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 1 ms 1492 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1492 KB Output is correct
8 Correct 1 ms 1492 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 1 ms 1492 KB Output is correct
11 Correct 299 ms 7984 KB Output is correct
12 Correct 1 ms 1492 KB Output is correct
13 Correct 394 ms 7904 KB Output is correct
14 Correct 1 ms 1492 KB Output is correct
15 Correct 299 ms 7988 KB Output is correct
16 Correct 314 ms 7892 KB Output is correct
17 Correct 342 ms 7932 KB Output is correct
18 Correct 295 ms 7960 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 5 ms 1876 KB Output is correct
4 Correct 4 ms 1876 KB Output is correct
5 Correct 4 ms 1836 KB Output is correct
6 Correct 5 ms 1876 KB Output is correct
7 Correct 5 ms 1876 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct
11 Correct 4 ms 1888 KB Output is correct
12 Correct 4 ms 1876 KB Output is correct
13 Correct 1 ms 1492 KB Output is correct
14 Correct 4 ms 1876 KB Output is correct
15 Correct 1 ms 1492 KB Output is correct
16 Correct 4 ms 1876 KB Output is correct
17 Correct 1 ms 1492 KB Output is correct
18 Correct 5 ms 1956 KB Output is correct
19 Correct 2 ms 1732 KB Output is correct
20 Correct 3 ms 1876 KB Output is correct
21 Correct 3 ms 1876 KB Output is correct
22 Correct 2 ms 1748 KB Output is correct
23 Correct 5 ms 1888 KB Output is correct
24 Correct 2 ms 1748 KB Output is correct
25 Correct 6 ms 1876 KB Output is correct
26 Correct 6 ms 1824 KB Output is correct
27 Correct 6 ms 1876 KB Output is correct
28 Correct 6 ms 1876 KB Output is correct
29 Correct 5 ms 1876 KB Output is correct
30 Correct 5 ms 1876 KB Output is correct
31 Correct 6 ms 1888 KB Output is correct
32 Correct 5 ms 1876 KB Output is correct
33 Correct 6 ms 1876 KB Output is correct
34 Correct 6 ms 1884 KB Output is correct
35 Correct 3 ms 1620 KB Output is correct
36 Correct 3 ms 1620 KB Output is correct
37 Correct 3 ms 1620 KB Output is correct
38 Correct 3 ms 1620 KB Output is correct
39 Correct 3 ms 1620 KB Output is correct
40 Correct 11 ms 1876 KB Output is correct
41 Correct 2 ms 1580 KB Output is correct
42 Correct 7 ms 1932 KB Output is correct
43 Correct 7 ms 1876 KB Output is correct
44 Correct 10 ms 1924 KB Output is correct
45 Correct 2 ms 1492 KB Output is correct
46 Correct 9 ms 1952 KB Output is correct
47 Correct 19 ms 2004 KB Output is correct
48 Correct 8 ms 1876 KB Output is correct
49 Correct 20 ms 2044 KB Output is correct
50 Correct 20 ms 2052 KB Output is correct
51 Correct 119 ms 2180 KB Output is correct
52 Correct 4 ms 1876 KB Output is correct
53 Correct 297 ms 2344 KB Output is correct
54 Correct 228 ms 2324 KB Output is correct
55 Correct 4 ms 1876 KB Output is correct
56 Correct 4 ms 1876 KB Output is correct
57 Correct 2 ms 1748 KB Output is correct
58 Correct 304 ms 2348 KB Output is correct
59 Correct 6 ms 1876 KB Output is correct
60 Correct 4 ms 1876 KB Output is correct
61 Correct 5 ms 1876 KB Output is correct
62 Correct 6 ms 1876 KB Output is correct
63 Correct 10 ms 1952 KB Output is correct
64 Correct 9 ms 1876 KB Output is correct
65 Correct 6 ms 1876 KB Output is correct
66 Correct 6 ms 1876 KB Output is correct
67 Correct 23 ms 2004 KB Output is correct
68 Correct 8 ms 1876 KB Output is correct
69 Correct 7 ms 1876 KB Output is correct
70 Correct 14 ms 2004 KB Output is correct
71 Correct 25 ms 2076 KB Output is correct
72 Correct 22 ms 2092 KB Output is correct
73 Correct 5 ms 1876 KB Output is correct
74 Correct 12 ms 2036 KB Output is correct
75 Correct 23 ms 2084 KB Output is correct
76 Correct 10 ms 1924 KB Output is correct
77 Correct 61 ms 2156 KB Output is correct
78 Correct 4 ms 1876 KB Output is correct
79 Correct 29 ms 1876 KB Output is correct
80 Correct 9 ms 1876 KB Output is correct
81 Correct 69 ms 2148 KB Output is correct
82 Correct 2 ms 1620 KB Output is correct
83 Correct 33 ms 1748 KB Output is correct
84 Correct 25 ms 2252 KB Output is correct
85 Correct 2 ms 1620 KB Output is correct
86 Correct 15 ms 2132 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 5 ms 1876 KB Output is correct
4 Correct 4 ms 1876 KB Output is correct
5 Correct 4 ms 1836 KB Output is correct
6 Correct 5 ms 1876 KB Output is correct
7 Correct 5 ms 1876 KB Output is correct
8 Correct 2 ms 1748 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 2 ms 1748 KB Output is correct
11 Correct 4 ms 1888 KB Output is correct
12 Correct 4 ms 1876 KB Output is correct
13 Correct 1 ms 1492 KB Output is correct
14 Correct 4 ms 1876 KB Output is correct
15 Correct 1 ms 1492 KB Output is correct
16 Correct 4 ms 1876 KB Output is correct
17 Correct 1 ms 1492 KB Output is correct
18 Correct 5 ms 1956 KB Output is correct
19 Correct 2 ms 1732 KB Output is correct
20 Correct 3 ms 1876 KB Output is correct
21 Correct 3 ms 1876 KB Output is correct
22 Correct 2 ms 1748 KB Output is correct
23 Correct 5 ms 1888 KB Output is correct
24 Correct 2 ms 1748 KB Output is correct
25 Correct 6 ms 1876 KB Output is correct
26 Correct 6 ms 1824 KB Output is correct
27 Correct 6 ms 1876 KB Output is correct
28 Correct 6 ms 1876 KB Output is correct
29 Correct 5 ms 1876 KB Output is correct
30 Correct 5 ms 1876 KB Output is correct
31 Correct 6 ms 1888 KB Output is correct
32 Correct 5 ms 1876 KB Output is correct
33 Correct 6 ms 1876 KB Output is correct
34 Correct 6 ms 1884 KB Output is correct
35 Correct 3 ms 1620 KB Output is correct
36 Correct 3 ms 1620 KB Output is correct
37 Correct 3 ms 1620 KB Output is correct
38 Correct 3 ms 1620 KB Output is correct
39 Correct 3 ms 1620 KB Output is correct
40 Correct 11 ms 1876 KB Output is correct
41 Correct 2 ms 1580 KB Output is correct
42 Correct 7 ms 1932 KB Output is correct
43 Correct 7 ms 1876 KB Output is correct
44 Correct 1 ms 1492 KB Output is correct
45 Correct 140 ms 6412 KB Output is correct
46 Correct 67 ms 5744 KB Output is correct
47 Correct 166 ms 6360 KB Output is correct
48 Correct 147 ms 6408 KB Output is correct
49 Correct 41 ms 5748 KB Output is correct
50 Correct 164 ms 6472 KB Output is correct
51 Correct 172 ms 6440 KB Output is correct
52 Correct 41 ms 5848 KB Output is correct
53 Correct 45 ms 5832 KB Output is correct
54 Correct 13 ms 4052 KB Output is correct
55 Correct 173 ms 6716 KB Output is correct
56 Correct 28 ms 5656 KB Output is correct
57 Correct 47 ms 5840 KB Output is correct
58 Correct 51 ms 5576 KB Output is correct
59 Correct 30 ms 5588 KB Output is correct
60 Correct 32 ms 5636 KB Output is correct
61 Correct 48 ms 5640 KB Output is correct
62 Correct 39 ms 5576 KB Output is correct
63 Correct 75 ms 5836 KB Output is correct
64 Correct 30 ms 5644 KB Output is correct
65 Correct 110 ms 6072 KB Output is correct
66 Correct 39 ms 5636 KB Output is correct
67 Correct 76 ms 5780 KB Output is correct
68 Correct 93 ms 5992 KB Output is correct
69 Correct 97 ms 6148 KB Output is correct
70 Correct 46 ms 5640 KB Output is correct
71 Correct 125 ms 5964 KB Output is correct
72 Correct 65 ms 5780 KB Output is correct
73 Correct 119 ms 6140 KB Output is correct
74 Correct 43 ms 5588 KB Output is correct
75 Correct 42 ms 3668 KB Output is correct
76 Correct 71 ms 5812 KB Output is correct
77 Correct 126 ms 6132 KB Output is correct
78 Correct 55 ms 3828 KB Output is correct
79 Correct 42 ms 3668 KB Output is correct
80 Correct 18 ms 2560 KB Output is correct
81 Correct 56 ms 3796 KB Output is correct
82 Correct 85 ms 5636 KB Output is correct
83 Correct 18 ms 2644 KB Output is correct
84 Correct 83 ms 5644 KB Output is correct