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Submission #1074808

# Submission time Handle Problem Language Result Execution time Memory
1074808 2024-08-25T14:19:47 Z Zicrus Rarest Insects (IOI22_insects) C++17
55.34 / 100
 105 ms 704 KB 
#include <bits/stdc++.h>
#include "insects.h"
using namespace std;

typedef long long ll;

int n;
vector<bool> in;
unordered_set<int> s;
int cnt;

int add(int i) {
    if (in[i]) return 0;
    move_inside(i);
    cnt++;
    in[i] = true;
    return 1;
}

int remove(int i) {
    if (!in[i]) return 0;
    move_outside(i);
    cnt--;
    in[i] = false;
    return 1;
}

int min_cardinality(int N) {
    n = N;
    cnt = 0;
    mt19937 mt(time(0));
    in = vector<bool>(n);
    for (int i = 0; i < n; i++) {
        add(i);
    }
    int mx = press_button();
    int prevSz = cnt;
    while (mx > 1) {
        int cur = mx;
        while (cur == mx) {
            int i = mt()%n;
            if (remove(i)) {
                cur = press_button();
                if (cur == mx) s.insert(i);
            }
        }
        for (auto &e : s) {
            if (add(e)) {
                cur = press_button();
                if (cur == mx) remove(e);
            }
        }
        if (cnt * mx % (mx-1) == 0 && cnt * mx / (mx-1) == prevSz) {
            break;
        }
        s.clear();
        prevSz = cnt;
        mx--;
    }
    return mx;
} 

#ifdef TEST
#include "grader.cpp"
#endif

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 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 0 ms 340 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 7 ms 436 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 7 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 9 ms 344 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 7 ms 344 KB Output is correct
21 Correct 6 ms 344 KB Output is correct
22 Correct 5 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 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 0 ms 340 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 7 ms 436 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 7 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 9 ms 344 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 7 ms 344 KB Output is correct
21 Correct 6 ms 344 KB Output is correct
22 Correct 5 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 5 ms 344 KB Output is correct
26 Correct 21 ms 436 KB Output is correct
27 Correct 3 ms 344 KB Output is correct
28 Correct 27 ms 432 KB Output is correct
29 Correct 15 ms 344 KB Output is correct
30 Correct 40 ms 344 KB Output is correct
31 Correct 2 ms 344 KB Output is correct
32 Correct 5 ms 436 KB Output is correct
33 Correct 9 ms 440 KB Output is correct
34 Correct 6 ms 344 KB Output is correct
35 Correct 10 ms 344 KB Output is correct
36 Correct 11 ms 344 KB Output is correct
37 Correct 20 ms 344 KB Output is correct
38 Correct 42 ms 344 KB Output is correct
39 Correct 39 ms 688 KB Output is correct
40 Correct 32 ms 448 KB Output is correct
41 Correct 32 ms 592 KB Output is correct

Subtask #3
30.34 / 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 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Partially correct 59 ms 440 KB Output is partially correct
11 Correct 14 ms 344 KB Output is correct
12 Partially correct 54 ms 412 KB Output is partially correct
13 Partially correct 33 ms 344 KB Output is partially correct
14 Partially correct 98 ms 424 KB Output is partially correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 4 ms 440 KB Output is correct
17 Correct 8 ms 344 KB Output is correct
18 Correct 8 ms 344 KB Output is correct
19 Correct 14 ms 344 KB Output is correct
20 Correct 12 ms 344 KB Output is correct
21 Partially correct 62 ms 344 KB Output is partially correct
22 Partially correct 56 ms 432 KB Output is partially correct
23 Partially correct 88 ms 580 KB Output is partially correct
24 Partially correct 100 ms 492 KB Output is partially correct
25 Partially correct 86 ms 476 KB Output is partially correct
26 Partially correct 71 ms 480 KB Output is partially correct
27 Correct 5 ms 344 KB Output is correct
28 Correct 6 ms 444 KB Output is correct
29 Correct 6 ms 440 KB Output is correct
30 Correct 5 ms 344 KB Output is correct
31 Partially correct 50 ms 344 KB Output is partially correct
32 Partially correct 50 ms 344 KB Output is partially correct
33 Partially correct 99 ms 452 KB Output is partially correct
34 Partially correct 93 ms 704 KB Output is partially correct
35 Correct 6 ms 692 KB Output is correct
36 Correct 12 ms 436 KB Output is correct
37 Partially correct 39 ms 448 KB Output is partially correct
38 Partially correct 45 ms 344 KB Output is partially correct
39 Correct 8 ms 440 KB Output is correct
40 Correct 11 ms 448 KB Output is correct
41 Correct 6 ms 344 KB Output is correct
42 Correct 6 ms 452 KB Output is correct
43 Correct 6 ms 344 KB Output is correct
44 Correct 23 ms 344 KB Output is correct
45 Correct 1 ms 344 KB Output is correct
46 Partially correct 105 ms 668 KB Output is partially correct
47 Partially correct 88 ms 672 KB Output is partially correct
48 Partially correct 103 ms 416 KB Output is partially correct