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Submission #1025129

# Submission time Handle Problem Language Result Execution time Memory
1025129 2024-07-16T16:22:30 Z mansur Rarest Insects (IOI22_insects) C++17
100 / 100
 44 ms 1104 KB 
#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

#define rall(s) s.rbegin(), s.rend()
#define all(s) s.begin(), s.end()
#define sz(s) (int) s.size()
#define s second 
#define f first 

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

mt19937_64 rng(131415889);

int min_cardinality(int n) {
    vector<int> p(n), pos;
    for (int i = 0; i < n; i++) p[i] = i;
    shuffle(all(p), rng);
    int k = 0;
    for (int i = 0; i < sz(p); i++) {
        move_inside(p[i]);
        if (press_button() == 1) {
            k++;
            pos.push_back(p[i]);
        }else move_outside(p[i]);
    }
    for (int x: pos) move_outside(x);
    int l = 1, r = n / k, ans = 0;
    while (l <= r) {
        int m = (l + r) / 2;
        vector<int> s0, s1;
        for (int i = 0; i < sz(p); i++) {
            if (sz(s0) == m * k) {
                s1.push_back(p[i]);
                continue;
            }
            move_inside(p[i]);
            if (press_button() > m) {
                move_outside(p[i]);
                s1.push_back(p[i]);
            }else s0.push_back(p[i]);
        }
        for (int x: s0) move_outside(x);
        if (sz(s0) == m * k) {
            p = s1;
            l = 1;
            r -= m;
            ans += m;
        }else p = s0, r = m - 1;
    }
    return ans;
}

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 3 ms 600 KB Output is correct
7 Correct 2 ms 344 KB Output is correct
8 Correct 3 ms 440 KB Output is correct
9 Correct 3 ms 436 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 3 ms 436 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 5 ms 440 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 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 2 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 3 ms 600 KB Output is correct
7 Correct 2 ms 344 KB Output is correct
8 Correct 3 ms 440 KB Output is correct
9 Correct 3 ms 436 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 3 ms 436 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 5 ms 440 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 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
23 Correct 7 ms 344 KB Output is correct
24 Correct 11 ms 452 KB Output is correct
25 Correct 17 ms 344 KB Output is correct
26 Correct 10 ms 344 KB Output is correct
27 Correct 9 ms 344 KB Output is correct
28 Correct 6 ms 344 KB Output is correct
29 Correct 18 ms 696 KB Output is correct
30 Correct 14 ms 344 KB Output is correct
31 Correct 13 ms 448 KB Output is correct
32 Correct 18 ms 600 KB Output is correct
33 Correct 16 ms 600 KB Output is correct
34 Correct 19 ms 344 KB Output is correct
35 Correct 14 ms 600 KB Output is correct
36 Correct 19 ms 600 KB Output is correct
37 Correct 21 ms 600 KB Output is correct
38 Correct 13 ms 600 KB Output is correct
39 Correct 17 ms 436 KB Output is correct
40 Correct 10 ms 344 KB Output is correct
41 Correct 11 ms 344 KB Output is correct

Subtask #3
75.0 / 75.0

# 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 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 23 ms 344 KB Output is correct
8 Correct 27 ms 444 KB Output is correct
9 Correct 21 ms 680 KB Output is correct
10 Correct 21 ms 344 KB Output is correct
11 Correct 32 ms 940 KB Output is correct
12 Correct 28 ms 452 KB Output is correct
13 Correct 37 ms 600 KB Output is correct
14 Correct 31 ms 592 KB Output is correct
15 Correct 25 ms 344 KB Output is correct
16 Correct 23 ms 344 KB Output is correct
17 Correct 38 ms 428 KB Output is correct
18 Correct 23 ms 448 KB Output is correct
19 Correct 26 ms 440 KB Output is correct
20 Correct 32 ms 440 KB Output is correct
21 Correct 42 ms 676 KB Output is correct
22 Correct 39 ms 680 KB Output is correct
23 Correct 44 ms 344 KB Output is correct
24 Correct 22 ms 344 KB Output is correct
25 Correct 23 ms 688 KB Output is correct
26 Correct 22 ms 692 KB Output is correct
27 Correct 44 ms 600 KB Output is correct
28 Correct 23 ms 428 KB Output is correct
29 Correct 25 ms 1104 KB Output is correct
30 Correct 26 ms 704 KB Output is correct
31 Correct 34 ms 344 KB Output is correct
32 Correct 40 ms 344 KB Output is correct
33 Correct 39 ms 592 KB Output is correct
34 Correct 22 ms 592 KB Output is correct
35 Correct 21 ms 344 KB Output is correct
36 Correct 28 ms 420 KB Output is correct
37 Correct 42 ms 432 KB Output is correct
38 Correct 37 ms 452 KB Output is correct
39 Correct 26 ms 596 KB Output is correct
40 Correct 36 ms 588 KB Output is correct
41 Correct 31 ms 344 KB Output is correct
42 Correct 34 ms 932 KB Output is correct
43 Correct 8 ms 344 KB Output is correct
44 Correct 24 ms 592 KB Output is correct
45 Correct 24 ms 592 KB Output is correct
46 Correct 44 ms 444 KB Output is correct
47 Correct 24 ms 852 KB Output is correct
48 Correct 36 ms 436 KB Output is correct