#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
pair<int, int> pii;
const int maxn = 1e5 + 100;
int n, d, sz;
int used[maxn];
int f[maxn];
int p[maxn];
void move_inside(int i);
void move_outside(int i);
int press_button();
void add(int i){
sz++;
used[i] = 1;
move_inside(i);
}
void del(int i){
sz--;
used[i] = 0;
move_outside(i);
}
void clear(){
for(int i = 1; i <= n; i++){
if(used[i]) del(i);
}
}
bool ok(int k){
bool res = 0;
for(int i = 0; i < n; i++){
if(used[p[i]]) continue;
add(p[i]);
if(press_button() > k){
del(p[i]);
} else{
if(sz >= d * k){
res = 1;
break;
}
}
}
if(res){
for(int i = 0; i < n; i++){
if(used[p[i]]) used[p[i]] = 2;
}
} else{
for(int i = 0; i < n; i++){
if(used[p[i]] == 1){
del(p[i]);
} else if(used[p[i]] == 0){
used[p[i]] = 2;
}
}
}
return res;
}
int min_cardinality(int N){
d = 0; n = N;
srand(time(0));
for(int i = 0; i < n; i++){
p[i] = i;
}
random_shuffle(p, p + n);
for(int i = N - 1; i >= 0; i--){
add(p[i]);
if(press_button() == 1) d++;
else del(p[i]);
} clear();
int ans = 1;
for(int l = 2, r = n / d; l <= r;){
int mid = (l + r) >> 1;
if(!ok(mid)) r = mid - 1;
else l = mid + 1, ans = mid;
}
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
4 ms |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
2 ms |
344 KB |
Output is correct |
| 9 |
Correct |
3 ms |
344 KB |
Output is correct |
| 10 |
Correct |
2 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
344 KB |
Output is correct |
| 12 |
Correct |
3 ms |
344 KB |
Output is correct |
| 13 |
Correct |
2 ms |
344 KB |
Output is correct |
| 14 |
Correct |
2 ms |
344 KB |
Output is correct |
| 15 |
Correct |
2 ms |
344 KB |
Output is correct |
| 16 |
Correct |
3 ms |
344 KB |
Output is correct |
| 17 |
Correct |
3 ms |
344 KB |
Output is correct |
| 18 |
Correct |
3 ms |
344 KB |
Output is correct |
| 19 |
Correct |
3 ms |
344 KB |
Output is correct |
| 20 |
Correct |
3 ms |
344 KB |
Output is correct |
| 21 |
Correct |
2 ms |
344 KB |
Output is correct |
| 22 |
Correct |
1 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
4 ms |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
2 ms |
344 KB |
Output is correct |
| 9 |
Correct |
3 ms |
344 KB |
Output is correct |
| 10 |
Correct |
2 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
344 KB |
Output is correct |
| 12 |
Correct |
3 ms |
344 KB |
Output is correct |
| 13 |
Correct |
2 ms |
344 KB |
Output is correct |
| 14 |
Correct |
2 ms |
344 KB |
Output is correct |
| 15 |
Correct |
2 ms |
344 KB |
Output is correct |
| 16 |
Correct |
3 ms |
344 KB |
Output is correct |
| 17 |
Correct |
3 ms |
344 KB |
Output is correct |
| 18 |
Correct |
3 ms |
344 KB |
Output is correct |
| 19 |
Correct |
3 ms |
344 KB |
Output is correct |
| 20 |
Correct |
3 ms |
344 KB |
Output is correct |
| 21 |
Correct |
2 ms |
344 KB |
Output is correct |
| 22 |
Correct |
1 ms |
344 KB |
Output is correct |
| 23 |
Correct |
12 ms |
344 KB |
Output is correct |
| 24 |
Correct |
5 ms |
344 KB |
Output is correct |
| 25 |
Correct |
11 ms |
344 KB |
Output is correct |
| 26 |
Correct |
13 ms |
344 KB |
Output is correct |
| 27 |
Correct |
13 ms |
344 KB |
Output is correct |
| 28 |
Correct |
5 ms |
344 KB |
Output is correct |
| 29 |
Correct |
11 ms |
460 KB |
Output is correct |
| 30 |
Correct |
21 ms |
344 KB |
Output is correct |
| 31 |
Correct |
16 ms |
344 KB |
Output is correct |
| 32 |
Correct |
8 ms |
344 KB |
Output is correct |
| 33 |
Correct |
11 ms |
344 KB |
Output is correct |
| 34 |
Correct |
13 ms |
344 KB |
Output is correct |
| 35 |
Correct |
8 ms |
344 KB |
Output is correct |
| 36 |
Correct |
16 ms |
344 KB |
Output is correct |
| 37 |
Correct |
17 ms |
344 KB |
Output is correct |
| 38 |
Correct |
12 ms |
344 KB |
Output is correct |
| 39 |
Correct |
14 ms |
344 KB |
Output is correct |
| 40 |
Correct |
7 ms |
344 KB |
Output is correct |
| 41 |
Correct |
6 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
596 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
344 KB |
Output is correct |
| 7 |
Correct |
19 ms |
344 KB |
Output is correct |
| 8 |
Correct |
13 ms |
456 KB |
Output is correct |
| 9 |
Correct |
42 ms |
344 KB |
Output is correct |
| 10 |
Correct |
26 ms |
344 KB |
Output is correct |
| 11 |
Correct |
18 ms |
440 KB |
Output is correct |
| 12 |
Correct |
22 ms |
600 KB |
Output is correct |
| 13 |
Correct |
25 ms |
344 KB |
Output is correct |
| 14 |
Correct |
27 ms |
440 KB |
Output is correct |
| 15 |
Correct |
15 ms |
344 KB |
Output is correct |
| 16 |
Correct |
21 ms |
344 KB |
Output is correct |
| 17 |
Correct |
20 ms |
344 KB |
Output is correct |
| 18 |
Correct |
31 ms |
344 KB |
Output is correct |
| 19 |
Correct |
31 ms |
344 KB |
Output is correct |
| 20 |
Correct |
21 ms |
344 KB |
Output is correct |
| 21 |
Correct |
26 ms |
596 KB |
Output is correct |
| 22 |
Partially correct |
32 ms |
448 KB |
Output is partially correct |
| 23 |
Correct |
36 ms |
592 KB |
Output is correct |
| 24 |
Correct |
48 ms |
444 KB |
Output is correct |
| 25 |
Correct |
20 ms |
440 KB |
Output is correct |
| 26 |
Correct |
12 ms |
596 KB |
Output is correct |
| 27 |
Correct |
21 ms |
344 KB |
Output is correct |
| 28 |
Correct |
22 ms |
344 KB |
Output is correct |
| 29 |
Correct |
23 ms |
344 KB |
Output is correct |
| 30 |
Correct |
21 ms |
344 KB |
Output is correct |
| 31 |
Correct |
33 ms |
344 KB |
Output is correct |
| 32 |
Correct |
26 ms |
344 KB |
Output is correct |
| 33 |
Correct |
33 ms |
444 KB |
Output is correct |
| 34 |
Correct |
35 ms |
696 KB |
Output is correct |
| 35 |
Correct |
22 ms |
344 KB |
Output is correct |
| 36 |
Correct |
28 ms |
344 KB |
Output is correct |
| 37 |
Correct |
27 ms |
344 KB |
Output is correct |
| 38 |
Correct |
26 ms |
344 KB |
Output is correct |
| 39 |
Correct |
18 ms |
344 KB |
Output is correct |
| 40 |
Correct |
31 ms |
344 KB |
Output is correct |
| 41 |
Correct |
31 ms |
344 KB |
Output is correct |
| 42 |
Correct |
23 ms |
344 KB |
Output is correct |
| 43 |
Correct |
11 ms |
344 KB |
Output is correct |
| 44 |
Correct |
18 ms |
344 KB |
Output is correct |
| 45 |
Correct |
17 ms |
344 KB |
Output is correct |
| 46 |
Correct |
22 ms |
592 KB |
Output is correct |
| 47 |
Correct |
26 ms |
344 KB |
Output is correct |
| 48 |
Correct |
25 ms |
600 KB |
Output is correct |
