oj.uz

Submission #1054594

# Submission time Handle Problem Language Result Execution time Memory
1054594 2024-08-12T10:54:27 Z Ignut Rarest Insects (IOI22_insects) C++17
57.14 / 100
 98 ms 924 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 <= 6) {
        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 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 2 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 4 ms 344 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 3 ms 600 KB Output is correct
16 Correct 3 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 3 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 600 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 2 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 4 ms 344 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 3 ms 600 KB Output is correct
16 Correct 3 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 3 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 5 ms 600 KB Output is correct
25 Correct 31 ms 436 KB Output is correct
26 Correct 22 ms 420 KB Output is correct
27 Correct 5 ms 596 KB Output is correct
28 Correct 4 ms 440 KB Output is correct
29 Correct 22 ms 436 KB Output is correct
30 Correct 21 ms 600 KB Output is correct
31 Correct 21 ms 600 KB Output is correct
32 Correct 45 ms 600 KB Output is correct
33 Correct 36 ms 344 KB Output is correct
34 Correct 37 ms 344 KB Output is correct
35 Correct 37 ms 344 KB Output is correct
36 Correct 32 ms 664 KB Output is correct
37 Correct 24 ms 420 KB Output is correct
38 Correct 15 ms 600 KB Output is correct
39 Correct 11 ms 600 KB Output is correct
40 Correct 10 ms 440 KB Output is correct
41 Correct 6 ms 344 KB Output is correct

Subtask #3
32.14 / 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 11 ms 452 KB Output is correct
9 Partially correct 68 ms 924 KB Output is partially correct
10 Partially correct 67 ms 592 KB Output is partially correct
11 Correct 11 ms 428 KB Output is correct
12 Correct 16 ms 588 KB Output is correct
13 Partially correct 54 ms 660 KB Output is partially correct
14 Partially correct 56 ms 600 KB Output is partially correct
15 Partially correct 44 ms 344 KB Output is partially correct
16 Partially correct 84 ms 664 KB Output is partially correct
17 Partially correct 95 ms 424 KB Output is partially correct
18 Partially correct 80 ms 424 KB Output is partially correct
19 Partially correct 98 ms 676 KB Output is partially correct
20 Partially correct 74 ms 344 KB Output is partially correct
21 Partially correct 60 ms 692 KB Output is partially correct
22 Partially correct 53 ms 344 KB Output is partially correct
23 Partially correct 31 ms 344 KB Output is partially correct
24 Correct 30 ms 672 KB Output is correct
25 Correct 24 ms 672 KB Output is correct
26 Correct 8 ms 600 KB Output is correct
27 Partially correct 55 ms 424 KB Output is partially correct
28 Partially correct 59 ms 424 KB Output is partially correct
29 Partially correct 83 ms 676 KB Output is partially correct
30 Partially correct 74 ms 600 KB Output is partially correct
31 Partially correct 49 ms 676 KB Output is partially correct
32 Partially correct 43 ms 676 KB Output is partially correct
33 Partially correct 52 ms 428 KB Output is partially correct
34 Partially correct 47 ms 600 KB Output is partially correct
35 Partially correct 66 ms 448 KB Output is partially correct
36 Partially correct 70 ms 600 KB Output is partially correct
37 Partially correct 36 ms 672 KB Output is partially correct
38 Partially correct 56 ms 432 KB Output is partially correct
39 Partially correct 48 ms 660 KB Output is partially correct
40 Partially correct 58 ms 600 KB Output is partially correct
41 Partially correct 53 ms 664 KB Output is partially correct
42 Partially correct 54 ms 680 KB Output is partially correct
43 Partially correct 9 ms 344 KB Output is partially correct
44 Partially correct 89 ms 432 KB Output is partially correct
45 Correct 12 ms 600 KB Output is correct
46 Correct 12 ms 344 KB Output is correct
47 Correct 18 ms 440 KB Output is correct
48 Correct 16 ms 444 KB Output is correct