oj.uz

Submission #631050

# Submission time Handle Problem Language Result Execution time Memory
631050 2022-08-17T15:29:55 Z bachhoangxuan Political Development (BOI17_politicaldevelopment) C++17
39 / 100
 311 ms 8096 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';
}

Compilation message

politicaldevelopment.cpp: In function 'bool ok(int)':
politicaldevelopment.cpp:11:23: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   11 |         if((mask>>i)&1==0) continue;
      |                      ~^~~
politicaldevelopment.cpp:13:27: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   13 |             if((mask>>j)&1==0) continue;
      |                          ~^~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 2 ms 1492 KB Output is correct
3 Correct 5 ms 1876 KB Output is correct
4 Correct 4 ms 1860 KB Output is correct
5 Correct 4 ms 1876 KB Output is correct
6 Correct 5 ms 1876 KB Output is correct
7 Correct 4 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 2 ms 1492 KB Output is correct
3 Correct 5 ms 1876 KB Output is correct
4 Correct 4 ms 1860 KB Output is correct
5 Correct 4 ms 1876 KB Output is correct
6 Correct 5 ms 1876 KB Output is correct
7 Correct 4 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 1876 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 5 ms 1916 KB Output is correct
17 Correct 1 ms 1492 KB Output is correct
18 Correct 6 ms 1876 KB Output is correct
19 Correct 2 ms 1748 KB Output is correct
20 Correct 4 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 6 ms 1876 KB Output is correct
24 Correct 2 ms 1748 KB Output is correct
25 Correct 5 ms 1876 KB Output is correct
26 Correct 6 ms 1876 KB Output is correct
27 Correct 6 ms 1876 KB Output is correct
28 Correct 5 ms 1876 KB Output is correct
29 Correct 4 ms 1876 KB Output is correct
30 Correct 5 ms 1876 KB Output is correct
31 Correct 6 ms 1876 KB Output is correct
32 Correct 8 ms 1944 KB Output is correct
33 Correct 6 ms 1876 KB Output is correct
34 Correct 6 ms 1876 KB Output is correct
35 Correct 3 ms 1716 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 7 ms 1876 KB Output is correct
41 Correct 3 ms 1620 KB Output is correct
42 Correct 8 ms 1952 KB Output is correct
43 Correct 8 ms 1876 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1748 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 2 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 277 ms 7980 KB Output is correct
12 Correct 1 ms 1492 KB Output is correct
13 Correct 279 ms 7916 KB Output is correct
14 Correct 1 ms 1492 KB Output is correct
15 Correct 289 ms 8096 KB Output is correct
16 Correct 294 ms 8008 KB Output is correct
17 Correct 311 ms 8056 KB Output is correct
18 Correct 277 ms 8052 KB Output is correct

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 2 ms 1492 KB Output is correct
3 Correct 5 ms 1876 KB Output is correct
4 Correct 4 ms 1860 KB Output is correct
5 Correct 4 ms 1876 KB Output is correct
6 Correct 5 ms 1876 KB Output is correct
7 Correct 4 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 1876 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 5 ms 1916 KB Output is correct
17 Correct 1 ms 1492 KB Output is correct
18 Correct 6 ms 1876 KB Output is correct
19 Correct 2 ms 1748 KB Output is correct
20 Correct 4 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 6 ms 1876 KB Output is correct
24 Correct 2 ms 1748 KB Output is correct
25 Correct 5 ms 1876 KB Output is correct
26 Correct 6 ms 1876 KB Output is correct
27 Correct 6 ms 1876 KB Output is correct
28 Correct 5 ms 1876 KB Output is correct
29 Correct 4 ms 1876 KB Output is correct
30 Correct 5 ms 1876 KB Output is correct
31 Correct 6 ms 1876 KB Output is correct
32 Correct 8 ms 1944 KB Output is correct
33 Correct 6 ms 1876 KB Output is correct
34 Correct 6 ms 1876 KB Output is correct
35 Correct 3 ms 1716 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 7 ms 1876 KB Output is correct
41 Correct 3 ms 1620 KB Output is correct
42 Correct 8 ms 1952 KB Output is correct
43 Correct 8 ms 1876 KB Output is correct
44 Correct 9 ms 1876 KB Output is correct
45 Correct 2 ms 1484 KB Output is correct
46 Correct 9 ms 1956 KB Output is correct
47 Correct 19 ms 2004 KB Output is correct
48 Correct 10 ms 1876 KB Output is correct
49 Correct 17 ms 2004 KB Output is correct
50 Correct 16 ms 2004 KB Output is correct
51 Correct 89 ms 2280 KB Output is correct
52 Correct 3 ms 1876 KB Output is correct
53 Correct 246 ms 2352 KB Output is correct
54 Correct 162 ms 2320 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 231 ms 2344 KB Output is correct
59 Correct 6 ms 1876 KB Output is correct
60 Correct 5 ms 1948 KB Output is correct
61 Correct 6 ms 1876 KB Output is correct
62 Correct 6 ms 1900 KB Output is correct
63 Correct 10 ms 1932 KB Output is correct
64 Correct 9 ms 1876 KB Output is correct
65 Correct 7 ms 1944 KB Output is correct
66 Correct 7 ms 1836 KB Output is correct
67 Correct 23 ms 2108 KB Output is correct
68 Correct 8 ms 1992 KB Output is correct
69 Correct 7 ms 1876 KB Output is correct
70 Correct 12 ms 1940 KB Output is correct
71 Correct 20 ms 2104 KB Output is correct
72 Correct 19 ms 2088 KB Output is correct
73 Correct 4 ms 1876 KB Output is correct
74 Correct 13 ms 2004 KB Output is correct
75 Correct 21 ms 2004 KB Output is correct
76 Correct 10 ms 1876 KB Output is correct
77 Correct 38 ms 2148 KB Output is correct
78 Correct 5 ms 1876 KB Output is correct
79 Correct 19 ms 1748 KB Output is correct
80 Correct 12 ms 1940 KB Output is correct
81 Correct 41 ms 2132 KB Output is correct
82 Correct 3 ms 1492 KB Output is correct
83 Correct 20 ms 1748 KB Output is correct
84 Correct 24 ms 2252 KB Output is correct
85 Correct 3 ms 1624 KB Output is correct
86 Incorrect 23 ms 2160 KB Output isn't correct
87 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 2 ms 1492 KB Output is correct
3 Correct 5 ms 1876 KB Output is correct
4 Correct 4 ms 1860 KB Output is correct
5 Correct 4 ms 1876 KB Output is correct
6 Correct 5 ms 1876 KB Output is correct
7 Correct 4 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 1876 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 5 ms 1916 KB Output is correct
17 Correct 1 ms 1492 KB Output is correct
18 Correct 6 ms 1876 KB Output is correct
19 Correct 2 ms 1748 KB Output is correct
20 Correct 4 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 6 ms 1876 KB Output is correct
24 Correct 2 ms 1748 KB Output is correct
25 Correct 5 ms 1876 KB Output is correct
26 Correct 6 ms 1876 KB Output is correct
27 Correct 6 ms 1876 KB Output is correct
28 Correct 5 ms 1876 KB Output is correct
29 Correct 4 ms 1876 KB Output is correct
30 Correct 5 ms 1876 KB Output is correct
31 Correct 6 ms 1876 KB Output is correct
32 Correct 8 ms 1944 KB Output is correct
33 Correct 6 ms 1876 KB Output is correct
34 Correct 6 ms 1876 KB Output is correct
35 Correct 3 ms 1716 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 7 ms 1876 KB Output is correct
41 Correct 3 ms 1620 KB Output is correct
42 Correct 8 ms 1952 KB Output is correct
43 Correct 8 ms 1876 KB Output is correct
44 Correct 1 ms 1492 KB Output is correct
45 Correct 161 ms 6316 KB Output is correct
46 Correct 68 ms 5740 KB Output is correct
47 Correct 155 ms 6436 KB Output is correct
48 Correct 158 ms 6396 KB Output is correct
49 Correct 40 ms 5792 KB Output is correct
50 Correct 186 ms 6472 KB Output is correct
51 Correct 160 ms 6432 KB Output is correct
52 Correct 39 ms 5816 KB Output is correct
53 Correct 38 ms 5844 KB Output is correct
54 Correct 14 ms 4072 KB Output is correct
55 Correct 202 ms 6656 KB Output is correct
56 Correct 27 ms 5596 KB Output is correct
57 Correct 38 ms 5768 KB Output is correct
58 Correct 49 ms 5640 KB Output is correct
59 Correct 36 ms 5624 KB Output is correct
60 Correct 31 ms 5640 KB Output is correct
61 Correct 50 ms 5612 KB Output is correct
62 Correct 47 ms 5636 KB Output is correct
63 Correct 83 ms 5840 KB Output is correct
64 Correct 28 ms 5604 KB Output is correct
65 Correct 100 ms 6072 KB Output is correct
66 Correct 41 ms 5588 KB Output is correct
67 Correct 86 ms 5848 KB Output is correct
68 Correct 96 ms 6000 KB Output is correct
69 Correct 103 ms 6072 KB Output is correct
70 Correct 47 ms 5752 KB Output is correct
71 Correct 106 ms 5980 KB Output is correct
72 Correct 65 ms 5764 KB Output is correct
73 Correct 160 ms 6092 KB Output is correct
74 Correct 42 ms 5636 KB Output is correct
75 Correct 45 ms 3668 KB Output is correct
76 Correct 70 ms 5884 KB Output is correct
77 Correct 127 ms 6092 KB Output is correct
78 Correct 64 ms 3924 KB Output is correct
79 Correct 56 ms 3668 KB Output is correct
80 Correct 22 ms 2648 KB Output is correct
81 Correct 59 ms 3740 KB Output is correct
82 Correct 87 ms 5640 KB Output is correct
83 Correct 28 ms 2648 KB Output is correct
84 Incorrect 90 ms 5640 KB Output isn't correct
85 Halted 0 ms 0 KB -