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Submission #893109

# Submission time Handle Problem Language Result Execution time Memory
893109 2023-12-26T14:14:14 Z Trisanu_Das Rarest Insects (IOI22_insects) C++17
50 / 100
 108 ms 1352 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;
 
int min_cardinality(int N) {
    vector<int> in;
    for (int i = 0; i < N; i++) {
        in.push_back(i);
        move_inside(i);
        if (press_button() >= 2) {
            in.pop_back();
            move_outside(i);
        }
    }
    int diff = in.size();
    if (diff == 1) return N;
    function<bool(int)> check = [&](int x) {
        for (int i : in) move_outside(i);
        in.clear();
        for (int i = 0; i < N; i++) {
            in.push_back(i);
            move_inside(i);
            if (press_button() > x) {
                in.pop_back();
                move_outside(i);
            }
        }
        return in.size() == x * diff;
    };
    int l = 1, r = N / diff;
    while (l <= r){
        int m = (l + r) >> 1;
        if (check(m)) l = m + 1;
        else r = m - 1;
    }
    return r;
}

Compilation message

insects.cpp: In lambda function:
insects.cpp:28:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   28 |         return in.size() == x * diff;
      |                ~~~~~~~~~~^~~~~~~~~~~

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 596 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 2 ms 600 KB Output is correct
8 Correct 4 ms 600 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 8 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 5 ms 600 KB Output is correct
15 Correct 5 ms 600 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 4 ms 436 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 4 ms 436 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 2 ms 852 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 596 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 2 ms 600 KB Output is correct
8 Correct 4 ms 600 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 8 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 5 ms 600 KB Output is correct
15 Correct 5 ms 600 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 4 ms 436 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 4 ms 436 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 2 ms 852 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 9 ms 600 KB Output is correct
25 Correct 28 ms 1172 KB Output is correct
26 Correct 26 ms 604 KB Output is correct
27 Correct 50 ms 436 KB Output is correct
28 Correct 8 ms 600 KB Output is correct
29 Correct 43 ms 600 KB Output is correct
30 Correct 26 ms 432 KB Output is correct
31 Correct 43 ms 672 KB Output is correct
32 Correct 33 ms 936 KB Output is correct
33 Correct 30 ms 844 KB Output is correct
34 Correct 34 ms 940 KB Output is correct
35 Correct 35 ms 420 KB Output is correct
36 Correct 31 ms 676 KB Output is correct
37 Correct 20 ms 848 KB Output is correct
38 Correct 24 ms 344 KB Output is correct
39 Correct 19 ms 432 KB Output is correct
40 Correct 12 ms 440 KB Output is correct
41 Correct 7 ms 596 KB Output is correct

Subtask #3
25.0 / 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 Partially correct 0 ms 344 KB Output is partially correct
7 Correct 8 ms 344 KB Output is correct
8 Correct 19 ms 608 KB Output is correct
9 Partially correct 66 ms 928 KB Output is partially correct
10 Partially correct 53 ms 1352 KB Output is partially correct
11 Partially correct 106 ms 432 KB Output is partially correct
12 Correct 24 ms 916 KB Output is correct
13 Partially correct 98 ms 684 KB Output is partially correct
14 Partially correct 58 ms 436 KB Output is partially correct
15 Partially correct 90 ms 1100 KB Output is partially correct
16 Partially correct 89 ms 912 KB Output is partially correct
17 Partially correct 88 ms 1176 KB Output is partially correct
18 Partially correct 73 ms 932 KB Output is partially correct
19 Partially correct 78 ms 1176 KB Output is partially correct
20 Partially correct 80 ms 668 KB Output is partially correct
21 Partially correct 55 ms 1104 KB Output is partially correct
22 Partially correct 49 ms 1168 KB Output is partially correct
23 Partially correct 33 ms 600 KB Output is partially correct
24 Correct 30 ms 596 KB Output is correct
25 Correct 27 ms 672 KB Output is correct
26 Correct 18 ms 700 KB Output is correct
27 Partially correct 59 ms 1096 KB Output is partially correct
28 Partially correct 71 ms 928 KB Output is partially correct
29 Partially correct 67 ms 928 KB Output is partially correct
30 Partially correct 75 ms 928 KB Output is partially correct
31 Partially correct 63 ms 1108 KB Output is partially correct
32 Partially correct 51 ms 436 KB Output is partially correct
33 Partially correct 50 ms 920 KB Output is partially correct
34 Partially correct 43 ms 592 KB Output is partially correct
35 Partially correct 70 ms 1176 KB Output is partially correct
36 Partially correct 62 ms 912 KB Output is partially correct
37 Partially correct 55 ms 1188 KB Output is partially correct
38 Partially correct 49 ms 600 KB Output is partially correct
39 Partially correct 51 ms 852 KB Output is partially correct
40 Partially correct 62 ms 844 KB Output is partially correct
41 Partially correct 71 ms 920 KB Output is partially correct
42 Partially correct 62 ms 852 KB Output is partially correct
43 Partially correct 14 ms 344 KB Output is partially correct
44 Partially correct 78 ms 592 KB Output is partially correct
45 Partially correct 108 ms 924 KB Output is partially correct
46 Correct 25 ms 692 KB Output is correct
47 Correct 27 ms 592 KB Output is correct
48 Correct 29 ms 844 KB Output is correct