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Submission #629059

# Submission time Handle Problem Language Result Execution time Memory
629059 2022-08-14T06:39:54 Z two_sides Rarest Insects (IOI22_insects) C++17
100 / 100
 57 ms 424 KB 
#include "insects.h"
#include <bits/stdc++.h>

namespace {
    using namespace std;

    const int N = 2000;

    mt19937 rng(chrono::high_resolution_clock
    ::now().time_since_epoch().count());

    bool inside[N], dead[N]; int cnt;
    vector<int> ord;

    void insert(int i) {
        cnt++; inside[i] = 1;
        move_inside(ord[i]);
    }

    void erase(int i) {
        cnt--; inside[i] = 0;
        move_outside(ord[i]);
    }

}

int min_cardinality(int n) {
    ord.resize(n);
    iota(ord.begin(), ord.end(), 0);
    shuffle(ord.begin(), ord.end(), rng);
    for (int i = 0; i < n; i++) {
        insert(i);
        if (press_button() > 1) erase(i);
    }
    int t = cnt, l = 1, r = n / cnt;
    while (l < r) {
        int m = (l + r + 1) / 2;
        vector<int> add, remove;
        for (int i = 0; i < n; i++)
            if (!inside[i] && !dead[i]) {
                insert(i);
                if (press_button() > m) {
                    erase(i); remove.push_back(i);
                } else {
                    add.push_back(i);
                    if (cnt == m * t) break;
                }
            }
        if (cnt == m * t) l = m;
        else {
            for (int i : add) erase(i);
            for (int i : remove) dead[i] = 1;
            r = m - 1;
        }
    }
    return l;
}

Subtask #1
10.0 / 10.0

# 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 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 4 ms 312 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 3 ms 304 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 6 ms 304 KB Output is correct
17 Correct 5 ms 312 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 5 ms 308 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 208 KB Output is correct

Subtask #2
15.0 / 15.0

# 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 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 4 ms 312 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 3 ms 304 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 6 ms 304 KB Output is correct
17 Correct 5 ms 312 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 5 ms 308 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 208 KB Output is correct
23 Correct 19 ms 296 KB Output is correct
24 Correct 11 ms 208 KB Output is correct
25 Correct 18 ms 208 KB Output is correct
26 Correct 26 ms 316 KB Output is correct
27 Correct 21 ms 308 KB Output is correct
28 Correct 8 ms 208 KB Output is correct
29 Correct 29 ms 208 KB Output is correct
30 Correct 20 ms 288 KB Output is correct
31 Correct 15 ms 208 KB Output is correct
32 Correct 24 ms 208 KB Output is correct
33 Correct 20 ms 208 KB Output is correct
34 Correct 19 ms 208 KB Output is correct
35 Correct 22 ms 208 KB Output is correct
36 Correct 20 ms 208 KB Output is correct
37 Correct 20 ms 208 KB Output is correct
38 Correct 23 ms 312 KB Output is correct
39 Correct 17 ms 208 KB Output is correct
40 Correct 11 ms 208 KB Output is correct
41 Correct 9 ms 208 KB Output is correct

Subtask #3
75.0 / 75.0

# 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 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 36 ms 296 KB Output is correct
8 Correct 23 ms 208 KB Output is correct
9 Correct 46 ms 296 KB Output is correct
10 Correct 45 ms 208 KB Output is correct
11 Correct 37 ms 292 KB Output is correct
12 Correct 23 ms 292 KB Output is correct
13 Correct 48 ms 304 KB Output is correct
14 Correct 57 ms 424 KB Output is correct
15 Correct 41 ms 296 KB Output is correct
16 Correct 50 ms 312 KB Output is correct
17 Correct 20 ms 292 KB Output is correct
18 Correct 36 ms 296 KB Output is correct
19 Correct 50 ms 208 KB Output is correct
20 Correct 36 ms 296 KB Output is correct
21 Correct 34 ms 296 KB Output is correct
22 Correct 38 ms 292 KB Output is correct
23 Correct 47 ms 208 KB Output is correct
24 Correct 31 ms 208 KB Output is correct
25 Correct 26 ms 208 KB Output is correct
26 Correct 18 ms 208 KB Output is correct
27 Correct 48 ms 304 KB Output is correct
28 Correct 39 ms 332 KB Output is correct
29 Correct 50 ms 208 KB Output is correct
30 Correct 37 ms 208 KB Output is correct
31 Correct 44 ms 300 KB Output is correct
32 Correct 46 ms 208 KB Output is correct
33 Correct 44 ms 296 KB Output is correct
34 Correct 39 ms 208 KB Output is correct
35 Correct 44 ms 208 KB Output is correct
36 Correct 38 ms 208 KB Output is correct
37 Correct 57 ms 208 KB Output is correct
38 Correct 41 ms 304 KB Output is correct
39 Correct 46 ms 300 KB Output is correct
40 Correct 31 ms 208 KB Output is correct
41 Correct 47 ms 208 KB Output is correct
42 Correct 29 ms 292 KB Output is correct
43 Correct 10 ms 312 KB Output is correct
44 Correct 43 ms 304 KB Output is correct
45 Correct 31 ms 296 KB Output is correct
46 Correct 24 ms 300 KB Output is correct
47 Correct 29 ms 292 KB Output is correct
48 Correct 25 ms 304 KB Output is correct