Submission #978175

# Submission time Handle Problem Language Result Execution time Memory
978175 2024-05-09T02:14:38 Z 12345678 Rarest Insects (IOI22_insects) C++17
99.89 / 100
38 ms 1012 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 0 ms 344 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 608 KB Output is correct
6 Correct 1 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 2 ms 600 KB Output is correct
10 Correct 2 ms 480 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 476 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 2 ms 488 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 644 KB Output is correct
18 Correct 2 ms 596 KB Output is correct
19 Correct 3 ms 352 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 604 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 340 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 608 KB Output is correct
6 Correct 1 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 2 ms 600 KB Output is correct
10 Correct 2 ms 480 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 476 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 2 ms 488 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 644 KB Output is correct
18 Correct 2 ms 596 KB Output is correct
19 Correct 3 ms 352 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 604 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 4 ms 348 KB Output is correct
24 Correct 6 ms 500 KB Output is correct
25 Correct 15 ms 748 KB Output is correct
26 Correct 20 ms 484 KB Output is correct
27 Correct 12 ms 608 KB Output is correct
28 Correct 4 ms 344 KB Output is correct
29 Correct 10 ms 600 KB Output is correct
30 Correct 13 ms 596 KB Output is correct
31 Correct 14 ms 848 KB Output is correct
32 Correct 14 ms 480 KB Output is correct
33 Correct 15 ms 492 KB Output is correct
34 Correct 12 ms 344 KB Output is correct
35 Correct 13 ms 600 KB Output is correct
36 Correct 12 ms 600 KB Output is correct
37 Correct 14 ms 856 KB Output is correct
38 Correct 11 ms 492 KB Output is correct
39 Correct 9 ms 856 KB Output is correct
40 Correct 10 ms 600 KB Output is correct
41 Correct 4 ms 656 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 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 8 ms 344 KB Output is correct
8 Correct 13 ms 508 KB Output is correct
9 Correct 30 ms 744 KB Output is correct
10 Correct 29 ms 512 KB Output is correct
11 Correct 24 ms 600 KB Output is correct
12 Correct 18 ms 752 KB Output is correct
13 Correct 29 ms 852 KB Output is correct
14 Correct 31 ms 596 KB Output is correct
15 Correct 35 ms 344 KB Output is correct
16 Correct 28 ms 500 KB Output is correct
17 Correct 38 ms 740 KB Output is correct
18 Correct 29 ms 740 KB Output is correct
19 Partially correct 29 ms 1000 KB Output is partially correct
20 Correct 29 ms 856 KB Output is correct
21 Correct 31 ms 604 KB Output is correct
22 Correct 34 ms 752 KB Output is correct
23 Correct 24 ms 600 KB Output is correct
24 Correct 22 ms 848 KB Output is correct
25 Correct 12 ms 768 KB Output is correct
26 Correct 7 ms 520 KB Output is correct
27 Correct 28 ms 592 KB Output is correct
28 Correct 28 ms 744 KB Output is correct
29 Partially correct 23 ms 848 KB Output is partially correct
30 Partially correct 27 ms 1012 KB Output is partially correct
31 Correct 24 ms 852 KB Output is correct
32 Correct 25 ms 512 KB Output is correct
33 Correct 32 ms 604 KB Output is correct
34 Correct 25 ms 752 KB Output is correct
35 Partially correct 31 ms 344 KB Output is partially correct
36 Partially correct 28 ms 592 KB Output is partially correct
37 Correct 23 ms 592 KB Output is correct
38 Correct 26 ms 748 KB Output is correct
39 Correct 24 ms 756 KB Output is correct
40 Correct 28 ms 748 KB Output is correct
41 Partially correct 29 ms 1000 KB Output is partially correct
42 Partially correct 28 ms 488 KB Output is partially correct
43 Correct 7 ms 600 KB Output is correct
44 Correct 22 ms 604 KB Output is correct
45 Correct 25 ms 996 KB Output is correct
46 Correct 14 ms 996 KB Output is correct
47 Correct 14 ms 1012 KB Output is correct
48 Correct 13 ms 748 KB Output is correct