Submission #967981

# Submission time Handle Problem Language Result Execution time Memory
967981 2024-04-23T06:27:27 Z 12345678 Rarest Insects (IOI22_insects) C++17
99.89 / 100
40 ms 1016 KB
#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

const int nx=2e3+5;

mt19937 rng(time(0));

int p[nx], cnt, sz, in[nx], t[nx], s[nx];

vector<pair<int, int>> v;

int min_cardinality(int N) {
    cin.tie(NULL)->sync_with_stdio(false);
    for (int i=0; i<N; i++) v.push_back({rng(), i});
    sort(v.begin(), v.end());
    for (int i=0; i<N; i++) p[v[i].second]=i;
    for (int i=0; i<N; i++)
    {
        move_inside(p[i]);
        if (press_button()==1) cnt++, in[i]=1, s[i]=1;
        else move_outside(p[i]);
    }
    if (cnt==1) return N;
    if (cnt==N) return 1;
    int l=1, r=N/cnt;
    sz=cnt;
    while (l<r)
    {
        int md=(l+r+1)/2;
        for (int i=0; i<N; i++)
        {
            if (s[i]||t[i]) continue;
            move_inside(p[i]);
            if (press_button()>md) move_outside(p[i]);
            else sz++, in[i]=1;
        }
        if (sz==cnt*md) 
        {
            l=md;
            for (int i=0; i<N; i++) if (in[i]) s[i]=1;
        }
        else 
        {
            r=md-1;
            for (int i=0; i<N; i++) if (!in[i]) t[i]=1;
            for (int i=0; i<N; i++) if (in[i]&&!s[i]) in[i]=0, move_outside(p[i]), sz--;
        }
    }
    return l;
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 600 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 3 ms 600 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 3 ms 476 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 2 ms 600 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 600 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 3 ms 600 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 3 ms 476 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 2 ms 600 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 4 ms 600 KB Output is correct
25 Correct 12 ms 492 KB Output is correct
26 Correct 14 ms 600 KB Output is correct
27 Correct 9 ms 600 KB Output is correct
28 Correct 4 ms 600 KB Output is correct
29 Correct 11 ms 480 KB Output is correct
30 Correct 11 ms 600 KB Output is correct
31 Correct 17 ms 744 KB Output is correct
32 Correct 17 ms 720 KB Output is correct
33 Correct 13 ms 980 KB Output is correct
34 Correct 17 ms 736 KB Output is correct
35 Correct 12 ms 748 KB Output is correct
36 Correct 16 ms 592 KB Output is correct
37 Correct 13 ms 856 KB Output is correct
38 Correct 10 ms 496 KB Output is correct
39 Correct 10 ms 600 KB Output is correct
40 Correct 9 ms 856 KB Output is correct
41 Correct 4 ms 600 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 344 KB Output is correct
7 Correct 8 ms 344 KB Output is correct
8 Correct 9 ms 592 KB Output is correct
9 Correct 27 ms 592 KB Output is correct
10 Correct 32 ms 508 KB Output is correct
11 Correct 21 ms 848 KB Output is correct
12 Correct 13 ms 848 KB Output is correct
13 Correct 29 ms 848 KB Output is correct
14 Correct 32 ms 500 KB Output is correct
15 Correct 31 ms 484 KB Output is correct
16 Correct 31 ms 752 KB Output is correct
17 Correct 26 ms 1004 KB Output is correct
18 Correct 29 ms 740 KB Output is correct
19 Partially correct 26 ms 1000 KB Output is partially correct
20 Correct 25 ms 740 KB Output is correct
21 Correct 25 ms 736 KB Output is correct
22 Correct 28 ms 764 KB Output is correct
23 Correct 23 ms 748 KB Output is correct
24 Correct 19 ms 764 KB Output is correct
25 Correct 15 ms 764 KB Output is correct
26 Correct 9 ms 772 KB Output is correct
27 Correct 33 ms 496 KB Output is correct
28 Correct 36 ms 740 KB Output is correct
29 Partially correct 25 ms 740 KB Output is partially correct
30 Partially correct 33 ms 592 KB Output is partially correct
31 Correct 28 ms 512 KB Output is correct
32 Correct 33 ms 760 KB Output is correct
33 Correct 26 ms 600 KB Output is correct
34 Correct 25 ms 740 KB Output is correct
35 Partially correct 28 ms 740 KB Output is partially correct
36 Partially correct 28 ms 1016 KB Output is partially correct
37 Correct 32 ms 852 KB Output is correct
38 Correct 26 ms 756 KB Output is correct
39 Correct 26 ms 740 KB Output is correct
40 Correct 29 ms 488 KB Output is correct
41 Partially correct 23 ms 996 KB Output is partially correct
42 Partially correct 40 ms 508 KB Output is partially correct
43 Correct 5 ms 600 KB Output is correct
44 Correct 22 ms 740 KB Output is correct
45 Correct 27 ms 512 KB Output is correct
46 Correct 13 ms 600 KB Output is correct
47 Correct 13 ms 1012 KB Output is correct
48 Correct 19 ms 848 KB Output is correct