#include "insects.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 2000;
int A[MAXN+10], B[MAXN+10];
int min_cardinality(int N)
{
for(int i=0; i<N; i++)
{
move_inside(i); A[i]=1;
if(press_button()>1)
{
move_outside(i); A[i]=0;
}
}
int cnt=0;
for(int i=0; i<N; i++) cnt+=A[i];
for(int i=0; i<N; i++) if(A[i]) move_outside(i);
if(cnt==1) return N;
if(cnt==2)
{
for(int i=0; i<N; i++) move_inside(i);
return N-press_button();
}
int lo=1, hi=N/cnt+1;
int val=0;
while(lo+1<hi)
{
int mid=lo+hi>>1, t=val;
for(int i=0; i<N; i++)
{
if(B[i]) continue;
move_inside(i); A[i]=1; t++;
if(press_button()>mid)
{
move_outside(i); A[i]=0; t--;
}
if(t==mid*cnt) break;
}
//printf("%d : %d %d\n", mid, t, cnt);
if(t==mid*cnt)
{
lo=mid;
for(int i=0; i<N; i++) if(!B[i] && A[i]) B[i]=1, A[i]=0, val++;
}
else
{
hi=mid;
for(int i=0; i<N; i++) if(!B[i] && !A[i]) B[i]=2;
for(int i=0; i<N; i++) if(A[i]) move_outside(i), A[i]=0;
}
//for(int i=0; i<N; i++) printf("%d ", B[i]); printf(" : %d\n", val);
}
return lo;
}
Compilation message
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:37:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
37 | int mid=lo+hi>>1, t=val;
| ~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
0 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
208 KB |
Output is correct |
| 4 |
Correct |
0 ms |
208 KB |
Output is correct |
| 5 |
Correct |
0 ms |
208 KB |
Output is correct |
| 6 |
Correct |
2 ms |
208 KB |
Output is correct |
| 7 |
Correct |
2 ms |
208 KB |
Output is correct |
| 8 |
Correct |
5 ms |
208 KB |
Output is correct |
| 9 |
Correct |
3 ms |
208 KB |
Output is correct |
| 10 |
Correct |
2 ms |
208 KB |
Output is correct |
| 11 |
Correct |
2 ms |
208 KB |
Output is correct |
| 12 |
Correct |
5 ms |
208 KB |
Output is correct |
| 13 |
Correct |
5 ms |
208 KB |
Output is correct |
| 14 |
Correct |
4 ms |
208 KB |
Output is correct |
| 15 |
Correct |
6 ms |
208 KB |
Output is correct |
| 16 |
Correct |
2 ms |
208 KB |
Output is correct |
| 17 |
Correct |
5 ms |
208 KB |
Output is correct |
| 18 |
Correct |
6 ms |
208 KB |
Output is correct |
| 19 |
Correct |
2 ms |
208 KB |
Output is correct |
| 20 |
Correct |
5 ms |
208 KB |
Output is correct |
| 21 |
Correct |
4 ms |
208 KB |
Output is correct |
| 22 |
Correct |
2 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
0 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
208 KB |
Output is correct |
| 4 |
Correct |
0 ms |
208 KB |
Output is correct |
| 5 |
Correct |
0 ms |
208 KB |
Output is correct |
| 6 |
Correct |
2 ms |
208 KB |
Output is correct |
| 7 |
Correct |
2 ms |
208 KB |
Output is correct |
| 8 |
Correct |
5 ms |
208 KB |
Output is correct |
| 9 |
Correct |
3 ms |
208 KB |
Output is correct |
| 10 |
Correct |
2 ms |
208 KB |
Output is correct |
| 11 |
Correct |
2 ms |
208 KB |
Output is correct |
| 12 |
Correct |
5 ms |
208 KB |
Output is correct |
| 13 |
Correct |
5 ms |
208 KB |
Output is correct |
| 14 |
Correct |
4 ms |
208 KB |
Output is correct |
| 15 |
Correct |
6 ms |
208 KB |
Output is correct |
| 16 |
Correct |
2 ms |
208 KB |
Output is correct |
| 17 |
Correct |
5 ms |
208 KB |
Output is correct |
| 18 |
Correct |
6 ms |
208 KB |
Output is correct |
| 19 |
Correct |
2 ms |
208 KB |
Output is correct |
| 20 |
Correct |
5 ms |
208 KB |
Output is correct |
| 21 |
Correct |
4 ms |
208 KB |
Output is correct |
| 22 |
Correct |
2 ms |
208 KB |
Output is correct |
| 23 |
Correct |
6 ms |
208 KB |
Output is correct |
| 24 |
Correct |
4 ms |
308 KB |
Output is correct |
| 25 |
Correct |
15 ms |
208 KB |
Output is correct |
| 26 |
Correct |
18 ms |
300 KB |
Output is correct |
| 27 |
Correct |
9 ms |
208 KB |
Output is correct |
| 28 |
Correct |
7 ms |
208 KB |
Output is correct |
| 29 |
Correct |
19 ms |
208 KB |
Output is correct |
| 30 |
Correct |
20 ms |
308 KB |
Output is correct |
| 31 |
Correct |
21 ms |
304 KB |
Output is correct |
| 32 |
Correct |
16 ms |
312 KB |
Output is correct |
| 33 |
Correct |
24 ms |
308 KB |
Output is correct |
| 34 |
Correct |
14 ms |
292 KB |
Output is correct |
| 35 |
Correct |
21 ms |
308 KB |
Output is correct |
| 36 |
Correct |
16 ms |
312 KB |
Output is correct |
| 37 |
Correct |
13 ms |
292 KB |
Output is correct |
| 38 |
Correct |
23 ms |
208 KB |
Output is correct |
| 39 |
Correct |
14 ms |
208 KB |
Output is correct |
| 40 |
Correct |
11 ms |
304 KB |
Output is correct |
| 41 |
Correct |
9 ms |
312 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
0 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
208 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
0 ms |
208 KB |
Output is correct |
| 6 |
Correct |
0 ms |
208 KB |
Output is correct |
| 7 |
Correct |
13 ms |
304 KB |
Output is correct |
| 8 |
Correct |
12 ms |
312 KB |
Output is correct |
| 9 |
Correct |
38 ms |
304 KB |
Output is correct |
| 10 |
Correct |
44 ms |
288 KB |
Output is correct |
| 11 |
Correct |
18 ms |
296 KB |
Output is correct |
| 12 |
Correct |
34 ms |
304 KB |
Output is correct |
| 13 |
Correct |
45 ms |
304 KB |
Output is correct |
| 14 |
Correct |
32 ms |
208 KB |
Output is correct |
| 15 |
Correct |
37 ms |
288 KB |
Output is correct |
| 16 |
Correct |
17 ms |
312 KB |
Output is correct |
| 17 |
Correct |
33 ms |
208 KB |
Output is correct |
| 18 |
Correct |
27 ms |
208 KB |
Output is correct |
| 19 |
Correct |
43 ms |
208 KB |
Output is correct |
| 20 |
Correct |
22 ms |
288 KB |
Output is correct |
| 21 |
Correct |
36 ms |
308 KB |
Output is correct |
| 22 |
Partially correct |
42 ms |
296 KB |
Output is partially correct |
| 23 |
Correct |
46 ms |
208 KB |
Output is correct |
| 24 |
Correct |
44 ms |
304 KB |
Output is correct |
| 25 |
Correct |
34 ms |
288 KB |
Output is correct |
| 26 |
Correct |
18 ms |
304 KB |
Output is correct |
| 27 |
Correct |
20 ms |
308 KB |
Output is correct |
| 28 |
Correct |
25 ms |
292 KB |
Output is correct |
| 29 |
Partially correct |
39 ms |
208 KB |
Output is partially correct |
| 30 |
Partially correct |
63 ms |
288 KB |
Output is partially correct |
| 31 |
Correct |
44 ms |
292 KB |
Output is correct |
| 32 |
Correct |
30 ms |
308 KB |
Output is correct |
| 33 |
Correct |
53 ms |
292 KB |
Output is correct |
| 34 |
Correct |
47 ms |
292 KB |
Output is correct |
| 35 |
Partially correct |
37 ms |
308 KB |
Output is partially correct |
| 36 |
Correct |
44 ms |
208 KB |
Output is correct |
| 37 |
Correct |
45 ms |
336 KB |
Output is correct |
| 38 |
Correct |
39 ms |
292 KB |
Output is correct |
| 39 |
Correct |
51 ms |
312 KB |
Output is correct |
| 40 |
Correct |
14 ms |
208 KB |
Output is correct |
| 41 |
Correct |
41 ms |
312 KB |
Output is correct |
| 42 |
Partially correct |
22 ms |
312 KB |
Output is partially correct |
| 43 |
Correct |
9 ms |
208 KB |
Output is correct |
| 44 |
Correct |
31 ms |
312 KB |
Output is correct |
| 45 |
Correct |
16 ms |
308 KB |
Output is correct |
| 46 |
Correct |
35 ms |
208 KB |
Output is correct |
| 47 |
Correct |
32 ms |
308 KB |
Output is correct |
| 48 |
Correct |
41 ms |
312 KB |
Output is correct |
