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Submission #1025131

# Submission time Handle Problem Language Result Execution time Memory
1025131 2024-07-16T16:22:55 Z vjudge1 Rarest Insects (IOI22_insects) C++17
100 / 100
 49 ms 936 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 1 ms 344 KB Output is correct
2 Correct 1 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 2 ms 344 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 5 ms 600 KB Output is correct
9 Correct 4 ms 440 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 3 ms 344 KB Output is correct
12 Correct 3 ms 436 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 3 ms 432 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 3 ms 440 KB Output is correct
22 Correct 2 ms 440 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 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 2 ms 344 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 5 ms 600 KB Output is correct
9 Correct 4 ms 440 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 3 ms 344 KB Output is correct
12 Correct 3 ms 436 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 3 ms 432 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 3 ms 440 KB Output is correct
22 Correct 2 ms 440 KB Output is correct
23 Correct 8 ms 600 KB Output is correct
24 Correct 13 ms 600 KB Output is correct
25 Correct 12 ms 444 KB Output is correct
26 Correct 19 ms 440 KB Output is correct
27 Correct 13 ms 344 KB Output is correct
28 Correct 10 ms 600 KB Output is correct
29 Correct 16 ms 344 KB Output is correct
30 Correct 18 ms 344 KB Output is correct
31 Correct 12 ms 344 KB Output is correct
32 Correct 16 ms 448 KB Output is correct
33 Correct 12 ms 344 KB Output is correct
34 Correct 14 ms 344 KB Output is correct
35 Correct 15 ms 344 KB Output is correct
36 Correct 9 ms 340 KB Output is correct
37 Correct 11 ms 344 KB Output is correct
38 Correct 13 ms 344 KB Output is correct
39 Correct 14 ms 600 KB Output is correct
40 Correct 14 ms 340 KB Output is correct
41 Correct 9 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 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 17 ms 444 KB Output is correct
8 Correct 18 ms 456 KB Output is correct
9 Correct 28 ms 436 KB Output is correct
10 Correct 39 ms 848 KB Output is correct
11 Correct 22 ms 700 KB Output is correct
12 Correct 25 ms 440 KB Output is correct
13 Correct 31 ms 432 KB Output is correct
14 Correct 39 ms 604 KB Output is correct
15 Correct 24 ms 448 KB Output is correct
16 Correct 23 ms 344 KB Output is correct
17 Correct 20 ms 344 KB Output is correct
18 Correct 23 ms 436 KB Output is correct
19 Correct 19 ms 424 KB Output is correct
20 Correct 21 ms 344 KB Output is correct
21 Correct 30 ms 592 KB Output is correct
22 Correct 20 ms 588 KB Output is correct
23 Correct 34 ms 852 KB Output is correct
24 Correct 19 ms 344 KB Output is correct
25 Correct 25 ms 684 KB Output is correct
26 Correct 16 ms 600 KB Output is correct
27 Correct 19 ms 444 KB Output is correct
28 Correct 19 ms 344 KB Output is correct
29 Correct 29 ms 436 KB Output is correct
30 Correct 27 ms 428 KB Output is correct
31 Correct 25 ms 592 KB Output is correct
32 Correct 33 ms 684 KB Output is correct
33 Correct 37 ms 848 KB Output is correct
34 Correct 49 ms 936 KB Output is correct
35 Correct 35 ms 420 KB Output is correct
36 Correct 35 ms 432 KB Output is correct
37 Correct 34 ms 432 KB Output is correct
38 Correct 36 ms 452 KB Output is correct
39 Correct 34 ms 684 KB Output is correct
40 Correct 37 ms 676 KB Output is correct
41 Correct 26 ms 592 KB Output is correct
42 Correct 25 ms 684 KB Output is correct
43 Correct 9 ms 440 KB Output is correct
44 Correct 27 ms 432 KB Output is correct
45 Correct 26 ms 436 KB Output is correct
46 Correct 28 ms 456 KB Output is correct
47 Correct 28 ms 684 KB Output is correct
48 Correct 34 ms 448 KB Output is correct