oj.uz

Submission #1054592

# Submission time Handle Problem Language Result Execution time Memory
1054592 2024-08-12T10:54:00 Z Ignut Rarest Insects (IOI22_insects) C++17
57.14 / 100
 96 ms 848 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 <= 7) {
        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 1 ms 344 KB Output is correct
7 Correct 1 ms 440 KB Output is correct
8 Correct 6 ms 436 KB Output is correct
9 Correct 6 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 4 ms 344 KB Output is correct
16 Correct 4 ms 436 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 384 KB Output is correct
20 Correct 4 ms 344 KB Output is correct
21 Correct 2 ms 344 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 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 1 ms 440 KB Output is correct
8 Correct 6 ms 436 KB Output is correct
9 Correct 6 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 4 ms 344 KB Output is correct
16 Correct 4 ms 436 KB Output is correct
17 Correct 3 ms 340 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 384 KB Output is correct
20 Correct 4 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 4 ms 344 KB Output is correct
24 Correct 4 ms 444 KB Output is correct
25 Correct 26 ms 692 KB Output is correct
26 Correct 22 ms 432 KB Output is correct
27 Correct 7 ms 600 KB Output is correct
28 Correct 4 ms 600 KB Output is correct
29 Correct 22 ms 344 KB Output is correct
30 Correct 26 ms 344 KB Output is correct
31 Correct 25 ms 600 KB Output is correct
32 Correct 29 ms 344 KB Output is correct
33 Correct 47 ms 344 KB Output is correct
34 Correct 55 ms 600 KB Output is correct
35 Correct 25 ms 432 KB Output is correct
36 Correct 38 ms 592 KB Output is correct
37 Correct 24 ms 428 KB Output is correct
38 Correct 22 ms 344 KB Output is correct
39 Correct 7 ms 344 KB Output is correct
40 Correct 7 ms 344 KB Output is correct
41 Correct 5 ms 436 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 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 6 ms 344 KB Output is correct
8 Correct 8 ms 600 KB Output is correct
9 Partially correct 63 ms 428 KB Output is partially correct
10 Partially correct 63 ms 848 KB Output is partially correct
11 Correct 17 ms 416 KB Output is correct
12 Correct 17 ms 432 KB Output is correct
13 Partially correct 40 ms 428 KB Output is partially correct
14 Partially correct 67 ms 344 KB Output is partially correct
15 Partially correct 39 ms 416 KB Output is partially correct
16 Partially correct 94 ms 636 KB Output is partially correct
17 Partially correct 81 ms 680 KB Output is partially correct
18 Partially correct 81 ms 676 KB Output is partially correct
19 Partially correct 96 ms 676 KB Output is partially correct
20 Partially correct 68 ms 432 KB Output is partially correct
21 Partially correct 48 ms 680 KB Output is partially correct
22 Partially correct 68 ms 432 KB Output is partially correct
23 Partially correct 42 ms 344 KB Output is partially correct
24 Correct 26 ms 444 KB Output is correct
25 Correct 21 ms 344 KB Output is correct
26 Correct 6 ms 344 KB Output is correct
27 Partially correct 55 ms 676 KB Output is partially correct
28 Partially correct 62 ms 600 KB Output is partially correct
29 Partially correct 94 ms 676 KB Output is partially correct
30 Partially correct 63 ms 676 KB Output is partially correct
31 Partially correct 43 ms 676 KB Output is partially correct
32 Partially correct 71 ms 664 KB Output is partially correct
33 Partially correct 50 ms 600 KB Output is partially correct
34 Partially correct 40 ms 344 KB Output is partially correct
35 Partially correct 45 ms 688 KB Output is partially correct
36 Partially correct 54 ms 424 KB Output is partially correct
37 Partially correct 40 ms 432 KB Output is partially correct
38 Partially correct 49 ms 676 KB Output is partially correct
39 Partially correct 52 ms 428 KB Output is partially correct
40 Partially correct 40 ms 672 KB Output is partially correct
41 Partially correct 75 ms 680 KB Output is partially correct
42 Partially correct 41 ms 680 KB Output is partially correct
43 Partially correct 13 ms 424 KB Output is partially correct
44 Partially correct 41 ms 424 KB Output is partially correct
45 Correct 17 ms 672 KB Output is correct
46 Correct 15 ms 436 KB Output is correct
47 Correct 15 ms 436 KB Output is correct
48 Correct 15 ms 436 KB Output is correct