#include "insects.h"
#include<bits/stdc++.h>
#define pb push_back
#define x first
#define y second
#define all(a) (a).begin(), (a).end()
using namespace std;
typedef long long ll;
typedef pair<int, int> ii;
mt19937 rng(1209747089);
const int maxn = 2005;
int n, D, step;
int vis[maxn];
int forb[maxn];
vector<ii> in;
vector<int> p;
int check(int x) {
int y = -1, lst = 0;
shuffle(all(p), rng);
for(int i : p) {
if(vis[i] || forb[i]) continue;
move_inside(i);
int cnt = press_button();
if(lst < x && cnt == x) y = i;
if(cnt > x)
move_outside(i), forb[i] = 1;
else in.pb({i, step}), vis[i] = 1;
if((int)in.size() == x * D) return 1;
lst = cnt;
}
if(y != -1) forb[y] = 1;
return 0;
}
int min_cardinality(int N) {
srand(time(0));
n = N, D = 0, step = 1;
for(int i = 0;i < n;i++) p.pb(i);
shuffle(all(p), rng);
for(int i : p) {
move_inside(i);
if(press_button() > 1)
move_outside(i);
else in.pb({i, step}), vis[i] = 1, D++;
}
int lo = 1, hi = n / D, ans = 1;
while(lo <= hi) {
step++;
int mid = (lo + hi) / 2;
int num = 0;
for(int i = 0;i < n;i++) num += !(forb[i] | vis[i]);
if((num / D) < (mid - ans)) {hi = mid - 1;continue;}
int flag = check(mid);
if(flag) {
ans = mid, lo = mid + 1;
for(int i = 0;i < n;i++) forb[i] = 0;
} else {
hi = mid - 1;
while(in.back().y == step)
move_outside(in.back().x), vis[in.back().x] = 0, in.pop_back();
}
}
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 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 |
3 ms |
208 KB |
Output is correct |
| 7 |
Correct |
2 ms |
208 KB |
Output is correct |
| 8 |
Correct |
4 ms |
208 KB |
Output is correct |
| 9 |
Correct |
4 ms |
208 KB |
Output is correct |
| 10 |
Correct |
4 ms |
208 KB |
Output is correct |
| 11 |
Correct |
2 ms |
208 KB |
Output is correct |
| 12 |
Correct |
6 ms |
208 KB |
Output is correct |
| 13 |
Correct |
5 ms |
208 KB |
Output is correct |
| 14 |
Correct |
2 ms |
208 KB |
Output is correct |
| 15 |
Correct |
4 ms |
208 KB |
Output is correct |
| 16 |
Correct |
4 ms |
208 KB |
Output is correct |
| 17 |
Correct |
5 ms |
208 KB |
Output is correct |
| 18 |
Correct |
5 ms |
208 KB |
Output is correct |
| 19 |
Correct |
4 ms |
208 KB |
Output is correct |
| 20 |
Correct |
4 ms |
208 KB |
Output is correct |
| 21 |
Correct |
2 ms |
208 KB |
Output is correct |
| 22 |
Correct |
1 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 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 |
3 ms |
208 KB |
Output is correct |
| 7 |
Correct |
2 ms |
208 KB |
Output is correct |
| 8 |
Correct |
4 ms |
208 KB |
Output is correct |
| 9 |
Correct |
4 ms |
208 KB |
Output is correct |
| 10 |
Correct |
4 ms |
208 KB |
Output is correct |
| 11 |
Correct |
2 ms |
208 KB |
Output is correct |
| 12 |
Correct |
6 ms |
208 KB |
Output is correct |
| 13 |
Correct |
5 ms |
208 KB |
Output is correct |
| 14 |
Correct |
2 ms |
208 KB |
Output is correct |
| 15 |
Correct |
4 ms |
208 KB |
Output is correct |
| 16 |
Correct |
4 ms |
208 KB |
Output is correct |
| 17 |
Correct |
5 ms |
208 KB |
Output is correct |
| 18 |
Correct |
5 ms |
208 KB |
Output is correct |
| 19 |
Correct |
4 ms |
208 KB |
Output is correct |
| 20 |
Correct |
4 ms |
208 KB |
Output is correct |
| 21 |
Correct |
2 ms |
208 KB |
Output is correct |
| 22 |
Correct |
1 ms |
208 KB |
Output is correct |
| 23 |
Correct |
18 ms |
320 KB |
Output is correct |
| 24 |
Correct |
9 ms |
328 KB |
Output is correct |
| 25 |
Correct |
21 ms |
324 KB |
Output is correct |
| 26 |
Correct |
22 ms |
320 KB |
Output is correct |
| 27 |
Correct |
29 ms |
320 KB |
Output is correct |
| 28 |
Correct |
7 ms |
208 KB |
Output is correct |
| 29 |
Correct |
12 ms |
316 KB |
Output is correct |
| 30 |
Correct |
16 ms |
320 KB |
Output is correct |
| 31 |
Correct |
23 ms |
312 KB |
Output is correct |
| 32 |
Correct |
18 ms |
316 KB |
Output is correct |
| 33 |
Correct |
16 ms |
208 KB |
Output is correct |
| 34 |
Correct |
15 ms |
208 KB |
Output is correct |
| 35 |
Correct |
23 ms |
316 KB |
Output is correct |
| 36 |
Correct |
12 ms |
332 KB |
Output is correct |
| 37 |
Correct |
11 ms |
328 KB |
Output is correct |
| 38 |
Correct |
28 ms |
300 KB |
Output is correct |
| 39 |
Correct |
20 ms |
324 KB |
Output is correct |
| 40 |
Correct |
11 ms |
208 KB |
Output is correct |
| 41 |
Correct |
7 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Output is correct |
| 2 |
Correct |
0 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
292 KB |
Output is correct |
| 4 |
Correct |
0 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
0 ms |
208 KB |
Output is correct |
| 7 |
Correct |
26 ms |
312 KB |
Output is correct |
| 8 |
Correct |
18 ms |
328 KB |
Output is correct |
| 9 |
Correct |
36 ms |
320 KB |
Output is correct |
| 10 |
Correct |
48 ms |
316 KB |
Output is correct |
| 11 |
Partially correct |
44 ms |
208 KB |
Output is partially correct |
| 12 |
Correct |
20 ms |
336 KB |
Output is correct |
| 13 |
Partially correct |
55 ms |
308 KB |
Output is partially correct |
| 14 |
Correct |
41 ms |
208 KB |
Output is correct |
| 15 |
Correct |
32 ms |
348 KB |
Output is correct |
| 16 |
Correct |
36 ms |
316 KB |
Output is correct |
| 17 |
Correct |
32 ms |
308 KB |
Output is correct |
| 18 |
Correct |
37 ms |
312 KB |
Output is correct |
| 19 |
Correct |
41 ms |
324 KB |
Output is correct |
| 20 |
Correct |
38 ms |
308 KB |
Output is correct |
| 21 |
Partially correct |
43 ms |
324 KB |
Output is partially correct |
| 22 |
Correct |
45 ms |
448 KB |
Output is correct |
| 23 |
Correct |
29 ms |
316 KB |
Output is correct |
| 24 |
Correct |
30 ms |
208 KB |
Output is correct |
| 25 |
Correct |
26 ms |
332 KB |
Output is correct |
| 26 |
Correct |
13 ms |
356 KB |
Output is correct |
| 27 |
Correct |
29 ms |
320 KB |
Output is correct |
| 28 |
Correct |
22 ms |
328 KB |
Output is correct |
| 29 |
Correct |
34 ms |
316 KB |
Output is correct |
| 30 |
Correct |
19 ms |
332 KB |
Output is correct |
| 31 |
Correct |
41 ms |
340 KB |
Output is correct |
| 32 |
Correct |
43 ms |
308 KB |
Output is correct |
| 33 |
Partially correct |
34 ms |
328 KB |
Output is partially correct |
| 34 |
Partially correct |
55 ms |
328 KB |
Output is partially correct |
| 35 |
Correct |
39 ms |
308 KB |
Output is correct |
| 36 |
Correct |
33 ms |
316 KB |
Output is correct |
| 37 |
Correct |
52 ms |
320 KB |
Output is correct |
| 38 |
Correct |
47 ms |
320 KB |
Output is correct |
| 39 |
Correct |
44 ms |
316 KB |
Output is correct |
| 40 |
Correct |
29 ms |
308 KB |
Output is correct |
| 41 |
Correct |
43 ms |
332 KB |
Output is correct |
| 42 |
Correct |
33 ms |
304 KB |
Output is correct |
| 43 |
Correct |
13 ms |
208 KB |
Output is correct |
| 44 |
Correct |
35 ms |
208 KB |
Output is correct |
| 45 |
Correct |
28 ms |
308 KB |
Output is correct |
| 46 |
Correct |
26 ms |
324 KB |
Output is correct |
| 47 |
Correct |
25 ms |
316 KB |
Output is correct |
| 48 |
Correct |
24 ms |
324 KB |
Output is correct |
