oj.uz

Submission #942177

# Submission time Handle Problem Language Result Execution time Memory
942177 2024-03-10T10:32:02 Z benjaminkleyn Rarest Insects (IOI22_insects) C++17
99.83 / 100
 41 ms 1108 KB 
#include <bits/stdc++.h>
#include "insects.h"
using namespace std;

int cnt;
bool inside[2000];
bool bad[2000];

void init()
{
    cnt = 0;
    memset(inside, false, sizeof(inside));
    memset(bad, false, sizeof(bad));
}
void move_in(int i)
{
    if (inside[i])
        return;
    cnt++;
    inside[i] = true;
    move_inside(i);
}
void move_out(int i)
{
    if (!inside[i])
        return;
    cnt--;
    inside[i] = false;
    move_outside(i);
}

int min_cardinality(int N) 
{
    init();
    for (int i = 0; i < N; i++)
    {
        move_in(i);
        if (press_button() > 1)
            move_out(i);
    }
    int num_types = cnt;

    if (num_types == 1)
        return N;
    if (num_types == N)
        return 1;

    int lo = 1, hi = N / cnt + 1, mid;
    while (lo < hi)
    {
        mid = lo + (hi - lo + 1) / 2;
      
        vector<int> new_insects;
        vector<int> bad_insects;
        for (int i = 0; i < N; i++)
        {
            if (!(bad[i] || inside[i]))
            {
                move_in(i);

                if (press_button() > mid)
                {
                    bad_insects.push_back(i);
                    move_out(i);
                }
                else
                    new_insects.push_back(i);

                if (cnt >= mid * num_types)
                    break;
            }
        }

        if (cnt == mid * num_types)
            lo = mid;
        else
        {
            for (int i : bad_insects)
                bad[i] = true;
            for (int i : new_insects)
                move_out(i);
            hi = mid - 1;
        }
    }
    return lo;
}

Subtask #1
10.0 / 10.0

# 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 1 ms 344 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 0 ms 344 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 600 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 600 KB Output is correct
13 Correct 2 ms 444 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 3 ms 600 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 2 ms 600 KB Output is correct
20 Correct 2 ms 440 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct

Subtask #2
15.0 / 15.0

# 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 1 ms 344 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 0 ms 344 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 600 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 600 KB Output is correct
13 Correct 2 ms 444 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 3 ms 600 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 2 ms 600 KB Output is correct
20 Correct 2 ms 440 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 11 ms 600 KB Output is correct
26 Correct 14 ms 436 KB Output is correct
27 Correct 12 ms 596 KB Output is correct
28 Correct 6 ms 600 KB Output is correct
29 Correct 11 ms 612 KB Output is correct
30 Correct 15 ms 848 KB Output is correct
31 Correct 9 ms 344 KB Output is correct
32 Correct 9 ms 436 KB Output is correct
33 Correct 15 ms 344 KB Output is correct
34 Correct 9 ms 600 KB Output is correct
35 Correct 10 ms 440 KB Output is correct
36 Correct 11 ms 600 KB Output is correct
37 Correct 16 ms 600 KB Output is correct
38 Correct 12 ms 600 KB Output is correct
39 Correct 9 ms 344 KB Output is correct
40 Correct 6 ms 600 KB Output is correct
41 Correct 8 ms 600 KB Output is correct

Subtask #3
74.83 / 75.0

# 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 0 ms 344 KB Output is correct
7 Correct 7 ms 344 KB Output is correct
8 Correct 8 ms 344 KB Output is correct
9 Correct 25 ms 684 KB Output is correct
10 Correct 28 ms 852 KB Output is correct
11 Correct 22 ms 676 KB Output is correct
12 Correct 15 ms 668 KB Output is correct
13 Correct 29 ms 852 KB Output is correct
14 Correct 28 ms 680 KB Output is correct
15 Correct 22 ms 668 KB Output is correct
16 Correct 24 ms 436 KB Output is correct
17 Correct 25 ms 600 KB Output is correct
18 Correct 21 ms 432 KB Output is correct
19 Correct 20 ms 668 KB Output is correct
20 Correct 21 ms 420 KB Output is correct
21 Correct 25 ms 672 KB Output is correct
22 Correct 36 ms 444 KB Output is correct
23 Correct 23 ms 852 KB Output is correct
24 Correct 18 ms 688 KB Output is correct
25 Correct 15 ms 692 KB Output is correct
26 Correct 12 ms 416 KB Output is correct
27 Correct 41 ms 412 KB Output is correct
28 Correct 20 ms 596 KB Output is correct
29 Correct 27 ms 424 KB Output is correct
30 Correct 26 ms 848 KB Output is correct
31 Correct 28 ms 424 KB Output is correct
32 Partially correct 29 ms 852 KB Output is partially correct
33 Correct 31 ms 928 KB Output is correct
34 Correct 24 ms 1108 KB Output is correct
35 Correct 26 ms 684 KB Output is correct
36 Correct 30 ms 416 KB Output is correct
37 Correct 29 ms 684 KB Output is correct
38 Correct 27 ms 672 KB Output is correct
39 Correct 25 ms 440 KB Output is correct
40 Correct 26 ms 668 KB Output is correct
41 Correct 26 ms 344 KB Output is correct
42 Correct 28 ms 684 KB Output is correct
43 Correct 5 ms 600 KB Output is correct
44 Correct 18 ms 428 KB Output is correct
45 Correct 26 ms 600 KB Output is correct
46 Correct 12 ms 848 KB Output is correct
47 Correct 13 ms 668 KB Output is correct
48 Correct 16 ms 600 KB Output is correct