답안 #942163

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
942163 2024-03-10T10:24:11 Z benjaminkleyn 드문 곤충 (IOI22_insects) C++17
53.16 / 100
93 ms 1104 KB
#include <bits/stdc++.h>
#include "insects.h"
using namespace std;

int cnt;
bool inside[2000] = {false};

void init()
{
    cnt = 0;
    memset(inside, false, sizeof(inside));
}
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();
    mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
    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;

    vector<int> p(N);
    iota(p.begin(), p.end(), 0);

    int lo = 1, hi = N / cnt + 1, mid;
    while (lo < hi)
    {
        mid = lo + (hi - lo + 1) / 2;

        shuffle(p.begin(), p.end(), rng);
        vector<int> new_insects;
        for (int idx = 0; idx < N; idx++)
        {
            int i = p[idx];
            if (!inside[i])
            {
                move_in(i);

                if (press_button() > mid)
                    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 : new_insects)
                move_out(i);
            hi = mid - 1;
        }
    }
    return lo;
}
# 결과 실행 시간 메모리 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 596 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 6 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 6 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 4 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 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
# 결과 실행 시간 메모리 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 596 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 6 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 6 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 4 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 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 4 ms 344 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 10 ms 856 KB Output is correct
26 Correct 17 ms 600 KB Output is correct
27 Correct 38 ms 600 KB Output is correct
28 Correct 7 ms 600 KB Output is correct
29 Correct 41 ms 444 KB Output is correct
30 Correct 25 ms 344 KB Output is correct
31 Correct 10 ms 600 KB Output is correct
32 Correct 12 ms 440 KB Output is correct
33 Correct 13 ms 696 KB Output is correct
34 Correct 12 ms 600 KB Output is correct
35 Correct 12 ms 688 KB Output is correct
36 Correct 19 ms 440 KB Output is correct
37 Correct 15 ms 444 KB Output is correct
38 Correct 13 ms 600 KB Output is correct
39 Correct 11 ms 600 KB Output is correct
40 Correct 7 ms 704 KB Output is correct
41 Correct 7 ms 444 KB Output is correct
# 결과 실행 시간 메모리 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 0 ms 344 KB Output is correct
7 Correct 9 ms 344 KB Output is correct
8 Correct 8 ms 344 KB Output is correct
9 Correct 22 ms 428 KB Output is correct
10 Partially correct 44 ms 932 KB Output is partially correct
11 Partially correct 88 ms 600 KB Output is partially correct
12 Correct 14 ms 600 KB Output is correct
13 Partially correct 93 ms 456 KB Output is partially correct
14 Partially correct 68 ms 848 KB Output is partially correct
15 Correct 19 ms 696 KB Output is correct
16 Correct 21 ms 856 KB Output is correct
17 Correct 26 ms 688 KB Output is correct
18 Correct 25 ms 848 KB Output is correct
19 Correct 38 ms 932 KB Output is correct
20 Correct 24 ms 600 KB Output is correct
21 Partially correct 34 ms 848 KB Output is partially correct
22 Partially correct 38 ms 696 KB Output is partially correct
23 Partially correct 39 ms 688 KB Output is partially correct
24 Correct 23 ms 460 KB Output is correct
25 Correct 13 ms 684 KB Output is correct
26 Correct 16 ms 672 KB Output is correct
27 Correct 26 ms 612 KB Output is correct
28 Correct 23 ms 700 KB Output is correct
29 Correct 22 ms 452 KB Output is correct
30 Correct 23 ms 704 KB Output is correct
31 Partially correct 36 ms 684 KB Output is partially correct
32 Partially correct 42 ms 608 KB Output is partially correct
33 Partially correct 58 ms 1104 KB Output is partially correct
34 Partially correct 43 ms 688 KB Output is partially correct
35 Correct 21 ms 672 KB Output is correct
36 Correct 30 ms 672 KB Output is correct
37 Partially correct 40 ms 436 KB Output is partially correct
38 Partially correct 36 ms 444 KB Output is partially correct
39 Correct 24 ms 848 KB Output is correct
40 Correct 21 ms 344 KB Output is correct
41 Correct 25 ms 848 KB Output is correct
42 Correct 23 ms 700 KB Output is correct
43 Partially correct 16 ms 600 KB Output is partially correct
44 Partially correct 77 ms 592 KB Output is partially correct
45 Correct 19 ms 696 KB Output is correct
46 Correct 16 ms 444 KB Output is correct
47 Correct 12 ms 436 KB Output is correct
48 Correct 13 ms 600 KB Output is correct