oj.uz

Submission #1054596

# Submission time Handle Problem Language Result Execution time Memory
1054596 2024-08-12T10:55:08 Z Ignut Rarest Insects (IOI22_insects) C++17
47.6 / 100
 122 ms 836 KB 
/* Ignut
started: 11.08.2024
now: 12.08.2024
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*/

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

void move_inside(int i);
void move_outside(int i);
int press_button();

int n;

vector<int> diff;

int Go(int maxCount) {
    vector<int> in;
    for (int i = 0; i < n; i ++) {
        move_inside(i);
        in.push_back(i);
        // cout << "add " << i << " -> " << press_button() << '\n';
        if (press_button() > maxCount) {
            move_outside(i);
            in.pop_back();
        }
    }
    int res = in.size();
    if (maxCount == 1) diff = in;
    while (!in.empty()) move_outside(in.back()), in.pop_back();
    // cout << maxCount << " : " << res << '\n';
    return res;
}

int min_cardinality(int N) {
    n = N;
    int cntDiff = Go(1);
    
    // for (int val : diff) cout << val << ' ';
    // cout << '\n';

    if (cntDiff <= 12) {
        int minRes = N, sum = 0;
        for (int i = 0; i < cntDiff - 1; i ++) {
            vector<int> in;
            in.push_back(diff[i]);
            move_inside(diff[i]);
            for (int j = diff[i] + 1; j < N; j ++) {
                move_inside(j);
                in.push_back(j);
                // cout << "try " << j << ' ';
                if (press_button() != in.size()) {
                    in.pop_back();
                    move_outside(j);
                    // cout << "! ";
                }
            }
            // cout << '\n';
            minRes = min(minRes, int(in.size()));
            sum += in.size();
            // cout << "have : " << in.size() << '\n';
            // for (int val : in) cout << val << ' ';
            // cout << '\n';
            while (!in.empty()) {
                move_outside(in.back());
                in.pop_back();
            }
        }
        minRes = min(minRes, N - sum);
        return minRes;
    }

    int lo = 1, hi = N / cntDiff;
    while (lo < hi) {
        int mid = lo + (hi - lo + 1) / 2;
        if (1ll * Go(mid) == 1ll * mid * cntDiff)
            lo = mid;
        else
            hi = mid - 1;
    }
    return lo;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:76:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |                 if (press_button() != in.size()) {
      |                     ~~~~~~~~~~~~~~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 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 1 ms 344 KB Output is correct
8 Correct 6 ms 432 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 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 4 ms 344 KB Output is correct
15 Correct 8 ms 344 KB Output is correct
16 Correct 7 ms 344 KB Output is correct
17 Correct 5 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 4 ms 436 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 2 ms 440 KB Output is correct
22 Correct 1 ms 344 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 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 1 ms 344 KB Output is correct
8 Correct 6 ms 432 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 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 4 ms 344 KB Output is correct
15 Correct 8 ms 344 KB Output is correct
16 Correct 7 ms 344 KB Output is correct
17 Correct 5 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 4 ms 436 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 2 ms 440 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 2 ms 344 KB Output is correct
24 Correct 2 ms 344 KB Output is correct
25 Correct 22 ms 436 KB Output is correct
26 Correct 29 ms 444 KB Output is correct
27 Correct 7 ms 432 KB Output is correct
28 Correct 5 ms 600 KB Output is correct
29 Correct 19 ms 436 KB Output is correct
30 Correct 22 ms 344 KB Output is correct
31 Correct 21 ms 344 KB Output is correct
32 Correct 49 ms 344 KB Output is correct
33 Correct 37 ms 344 KB Output is correct
34 Correct 52 ms 344 KB Output is correct
35 Correct 23 ms 440 KB Output is correct
36 Correct 24 ms 600 KB Output is correct
37 Correct 18 ms 344 KB Output is correct
38 Correct 18 ms 344 KB Output is correct
39 Correct 7 ms 344 KB Output is correct
40 Correct 13 ms 436 KB Output is correct
41 Correct 5 ms 344 KB Output is correct

Subtask #3
22.6 / 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 0 ms 344 KB Output is correct
7 Correct 7 ms 344 KB Output is correct
8 Correct 7 ms 344 KB Output is correct
9 Partially correct 69 ms 428 KB Output is partially correct
10 Partially correct 68 ms 600 KB Output is partially correct
11 Correct 14 ms 344 KB Output is correct
12 Correct 13 ms 432 KB Output is correct
13 Partially correct 54 ms 432 KB Output is partially correct
14 Partially correct 61 ms 428 KB Output is partially correct
15 Partially correct 37 ms 592 KB Output is partially correct
16 Partially correct 72 ms 428 KB Output is partially correct
17 Partially correct 98 ms 416 KB Output is partially correct
18 Partially correct 102 ms 424 KB Output is partially correct
19 Partially correct 122 ms 428 KB Output is partially correct
20 Partially correct 82 ms 672 KB Output is partially correct
21 Partially correct 49 ms 836 KB Output is partially correct
22 Partially correct 56 ms 600 KB Output is partially correct
23 Partially correct 25 ms 444 KB Output is partially correct
24 Correct 24 ms 420 KB Output is correct
25 Correct 18 ms 600 KB Output is correct
26 Correct 8 ms 440 KB Output is correct
27 Partially correct 45 ms 424 KB Output is partially correct
28 Partially correct 49 ms 440 KB Output is partially correct
29 Partially correct 54 ms 696 KB Output is partially correct
30 Partially correct 65 ms 436 KB Output is partially correct
31 Partially correct 52 ms 688 KB Output is partially correct
32 Partially correct 37 ms 428 KB Output is partially correct
33 Partially correct 52 ms 416 KB Output is partially correct
34 Partially correct 25 ms 432 KB Output is partially correct
35 Partially correct 67 ms 680 KB Output is partially correct
36 Partially correct 73 ms 680 KB Output is partially correct
37 Partially correct 62 ms 668 KB Output is partially correct
38 Partially correct 41 ms 428 KB Output is partially correct
39 Partially correct 43 ms 428 KB Output is partially correct
40 Partially correct 31 ms 676 KB Output is partially correct
41 Partially correct 66 ms 432 KB Output is partially correct
42 Partially correct 45 ms 432 KB Output is partially correct
43 Partially correct 11 ms 416 KB Output is partially correct
44 Partially correct 41 ms 428 KB Output is partially correct
45 Correct 17 ms 420 KB Output is correct
46 Correct 12 ms 344 KB Output is correct
47 Correct 19 ms 444 KB Output is correct
48 Correct 17 ms 444 KB Output is correct