#include<bits/stdc++.h>
const int MOD = 1e9+7;
using namespace std;
void move_inside(int i);
void move_outside(int i);
int press_button();
int min_cardinality(int N){
int t = 0;
vector<int> v;
bool vis[N] = {false};
for(int i = 0;i < N;i++){
move_inside(i);
if(press_button() == 2){
move_outside(i);
} else {
vis[i] = true;
t++;
v.push_back(i);
}
}
int ans = N;
if(t <= 2){
for(int i : v) if(i) move_outside(i);
for(int i : v){
if(i) move_inside(i);
t = 1;
for(int j = i+1;j < N;j++){
if(vis[j]) continue;
move_inside(j);
if(press_button() == 2){
t++;
vis[j] = true;
}
move_outside(j);
}
ans = min(ans, t);
}
return ans;
}
int l = 2, r = N/t, b = 1, m, rbm = 0;
bool broke[N] = {false};
while(l <= r){
m = l+r>>1;
int rb = rbm;
bool s[N] = {false};
int ind = N;
for(int i = 0;i < N;i++){
if(vis[i]) continue;
move_inside(i);
if(i >= m && press_button() > m){
rb++;
move_outside(i);
} else s[i] = true;
if(rb > N-t*m) {
ind = i+1;
break;
}
}
if(rb == N-t*m) {
b = m;
l = m+1;
for(int i = 0;i < N;i++) if(s[i]) vis[i] = true;
} else {
r = min(m-1, (N-rb)/t);
if(l <= r) {
for(int i = 0;i < ind;i++) {
if(s[i]) move_outside(i);
else if (!vis[i]) {
vis[i] = true;
rbm++;
}
}
}
}
}
return b;
}
Compilation message
insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:43:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
43 | m = l+r>>1;
| ~^~
insects.cpp:41:7: warning: unused variable 'broke' [-Wunused-variable]
41 | bool broke[N] = {false};
| ^~~~~
| # |
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 |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
5 ms |
256 KB |
Output is correct |
| 7 |
Correct |
2 ms |
300 KB |
Output is correct |
| 8 |
Correct |
5 ms |
208 KB |
Output is correct |
| 9 |
Correct |
3 ms |
208 KB |
Output is correct |
| 10 |
Correct |
4 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
208 KB |
Output is correct |
| 12 |
Correct |
4 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 |
5 ms |
208 KB |
Output is correct |
| 16 |
Correct |
5 ms |
208 KB |
Output is correct |
| 17 |
Correct |
5 ms |
208 KB |
Output is correct |
| 18 |
Correct |
4 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 |
3 ms |
208 KB |
Output is correct |
| 22 |
Correct |
2 ms |
336 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 |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
5 ms |
256 KB |
Output is correct |
| 7 |
Correct |
2 ms |
300 KB |
Output is correct |
| 8 |
Correct |
5 ms |
208 KB |
Output is correct |
| 9 |
Correct |
3 ms |
208 KB |
Output is correct |
| 10 |
Correct |
4 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
208 KB |
Output is correct |
| 12 |
Correct |
4 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 |
5 ms |
208 KB |
Output is correct |
| 16 |
Correct |
5 ms |
208 KB |
Output is correct |
| 17 |
Correct |
5 ms |
208 KB |
Output is correct |
| 18 |
Correct |
4 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 |
3 ms |
208 KB |
Output is correct |
| 22 |
Correct |
2 ms |
336 KB |
Output is correct |
| 23 |
Correct |
18 ms |
208 KB |
Output is correct |
| 24 |
Correct |
8 ms |
300 KB |
Output is correct |
| 25 |
Correct |
23 ms |
208 KB |
Output is correct |
| 26 |
Correct |
20 ms |
208 KB |
Output is correct |
| 27 |
Correct |
18 ms |
208 KB |
Output is correct |
| 28 |
Correct |
8 ms |
208 KB |
Output is correct |
| 29 |
Correct |
14 ms |
208 KB |
Output is correct |
| 30 |
Correct |
15 ms |
208 KB |
Output is correct |
| 31 |
Correct |
23 ms |
208 KB |
Output is correct |
| 32 |
Correct |
24 ms |
208 KB |
Output is correct |
| 33 |
Correct |
18 ms |
208 KB |
Output is correct |
| 34 |
Correct |
18 ms |
208 KB |
Output is correct |
| 35 |
Correct |
21 ms |
280 KB |
Output is correct |
| 36 |
Correct |
24 ms |
208 KB |
Output is correct |
| 37 |
Correct |
17 ms |
208 KB |
Output is correct |
| 38 |
Correct |
21 ms |
208 KB |
Output is correct |
| 39 |
Correct |
19 ms |
208 KB |
Output is correct |
| 40 |
Correct |
5 ms |
208 KB |
Output is correct |
| 41 |
Correct |
7 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
1 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 |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
17 ms |
208 KB |
Output is correct |
| 8 |
Correct |
14 ms |
304 KB |
Output is correct |
| 9 |
Correct |
53 ms |
208 KB |
Output is correct |
| 10 |
Correct |
40 ms |
280 KB |
Output is correct |
| 11 |
Correct |
25 ms |
208 KB |
Output is correct |
| 12 |
Correct |
7 ms |
312 KB |
Output is correct |
| 13 |
Correct |
42 ms |
208 KB |
Output is correct |
| 14 |
Correct |
32 ms |
208 KB |
Output is correct |
| 15 |
Correct |
37 ms |
208 KB |
Output is correct |
| 16 |
Correct |
37 ms |
300 KB |
Output is correct |
| 17 |
Correct |
22 ms |
296 KB |
Output is correct |
| 18 |
Correct |
49 ms |
296 KB |
Output is correct |
| 19 |
Partially correct |
52 ms |
292 KB |
Output is partially correct |
| 20 |
Correct |
53 ms |
280 KB |
Output is correct |
| 21 |
Correct |
47 ms |
280 KB |
Output is correct |
| 22 |
Correct |
39 ms |
276 KB |
Output is correct |
| 23 |
Correct |
33 ms |
208 KB |
Output is correct |
| 24 |
Correct |
29 ms |
208 KB |
Output is correct |
| 25 |
Correct |
17 ms |
300 KB |
Output is correct |
| 26 |
Correct |
13 ms |
208 KB |
Output is correct |
| 27 |
Correct |
48 ms |
280 KB |
Output is correct |
| 28 |
Correct |
31 ms |
208 KB |
Output is correct |
| 29 |
Partially correct |
35 ms |
208 KB |
Output is partially correct |
| 30 |
Partially correct |
50 ms |
276 KB |
Output is partially correct |
| 31 |
Correct |
47 ms |
280 KB |
Output is correct |
| 32 |
Correct |
34 ms |
208 KB |
Output is correct |
| 33 |
Correct |
40 ms |
276 KB |
Output is correct |
| 34 |
Correct |
37 ms |
208 KB |
Output is correct |
| 35 |
Partially correct |
51 ms |
276 KB |
Output is partially correct |
| 36 |
Partially correct |
34 ms |
300 KB |
Output is partially correct |
| 37 |
Correct |
47 ms |
276 KB |
Output is correct |
| 38 |
Correct |
40 ms |
208 KB |
Output is correct |
| 39 |
Correct |
44 ms |
276 KB |
Output is correct |
| 40 |
Correct |
38 ms |
208 KB |
Output is correct |
| 41 |
Partially correct |
52 ms |
208 KB |
Output is partially correct |
| 42 |
Partially correct |
36 ms |
208 KB |
Output is partially correct |
| 43 |
Correct |
9 ms |
208 KB |
Output is correct |
| 44 |
Correct |
33 ms |
208 KB |
Output is correct |
| 45 |
Correct |
45 ms |
208 KB |
Output is correct |
| 46 |
Correct |
17 ms |
304 KB |
Output is correct |
| 47 |
Correct |
13 ms |
208 KB |
Output is correct |
| 48 |
Correct |
17 ms |
208 KB |
Output is correct |
