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Submission #974987

# Submission time Handle Problem Language Result Execution time Memory
974987 2024-05-04T09:05:33 Z pirhosig Rarest Insects (IOI22_insects) C++17
53.16 / 100
 96 ms 1720 KB 
#include <bits/stdc++.h>
#include "insects.h"
using namespace std;



int min_cardinality(int N) {
    unordered_set<int> rem;

    for (int i = 0; i < N; ++i) {
        move_inside(i);
        if (press_button() > 1) {
            move_outside(i);
            rem.insert(i);
        }
    }
    int T = N - rem.size();

    int low = 1;
    int upp = N / T;
    while (low < upp) {
        int mid = (low + upp + 1) / 2;
        vector<int> curr;
        for (int a : rem) {
            move_inside(a);
            if (press_button() > mid) move_outside(a);
            else curr.push_back(a);
        }

        if (curr.size() == (mid - low) * T) {
            low = mid;
            for (int a : curr) rem.erase(a);
        }
        else {
            upp = mid - 1;
            for (int a : curr) move_outside(a);
        }
    }

    return low;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:30:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |         if (curr.size() == (mid - low) * T) {
      |             ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 344 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 944 KB Output is correct
10 Correct 6 ms 436 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 7 ms 600 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 3 ms 444 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 4 ms 600 KB Output is correct
18 Correct 4 ms 600 KB Output is correct
19 Correct 3 ms 604 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 2 ms 344 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 1 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 1 ms 344 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 944 KB Output is correct
10 Correct 6 ms 436 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 7 ms 600 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 3 ms 444 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 4 ms 600 KB Output is correct
18 Correct 4 ms 600 KB Output is correct
19 Correct 3 ms 604 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 15 ms 880 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 13 ms 1112 KB Output is correct
26 Correct 21 ms 1116 KB Output is correct
27 Correct 48 ms 600 KB Output is correct
28 Correct 4 ms 856 KB Output is correct
29 Correct 49 ms 600 KB Output is correct
30 Correct 27 ms 716 KB Output is correct
31 Correct 15 ms 856 KB Output is correct
32 Correct 19 ms 880 KB Output is correct
33 Correct 16 ms 1212 KB Output is correct
34 Correct 17 ms 1116 KB Output is correct
35 Correct 16 ms 1208 KB Output is correct
36 Correct 20 ms 1112 KB Output is correct
37 Correct 16 ms 948 KB Output is correct
38 Correct 16 ms 856 KB Output is correct
39 Correct 15 ms 884 KB Output is correct
40 Correct 6 ms 600 KB Output is correct
41 Correct 4 ms 1112 KB Output is correct

Subtask #3
28.16 / 75.0

# 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 0 ms 344 KB Output is correct
7 Correct 30 ms 1528 KB Output is correct
8 Correct 10 ms 344 KB Output is correct
9 Correct 28 ms 1144 KB Output is correct
10 Partially correct 35 ms 1108 KB Output is partially correct
11 Partially correct 95 ms 864 KB Output is partially correct
12 Correct 15 ms 856 KB Output is correct
13 Partially correct 96 ms 1232 KB Output is partially correct
14 Partially correct 56 ms 1128 KB Output is partially correct
15 Partially correct 37 ms 1000 KB Output is partially correct
16 Partially correct 34 ms 1112 KB Output is partially correct
17 Partially correct 31 ms 1120 KB Output is partially correct
18 Partially correct 38 ms 972 KB Output is partially correct
19 Partially correct 40 ms 1368 KB Output is partially correct
20 Partially correct 38 ms 960 KB Output is partially correct
21 Partially correct 34 ms 1112 KB Output is partially correct
22 Partially correct 53 ms 1224 KB Output is partially correct
23 Partially correct 34 ms 1144 KB Output is partially correct
24 Correct 27 ms 1148 KB Output is correct
25 Correct 14 ms 904 KB Output is correct
26 Correct 13 ms 448 KB Output is correct
27 Correct 31 ms 856 KB Output is correct
28 Correct 27 ms 1112 KB Output is correct
29 Partially correct 31 ms 1624 KB Output is partially correct
30 Partially correct 28 ms 1120 KB Output is partially correct
31 Partially correct 33 ms 1112 KB Output is partially correct
32 Partially correct 44 ms 1112 KB Output is partially correct
33 Partially correct 49 ms 1252 KB Output is partially correct
34 Partially correct 46 ms 1380 KB Output is partially correct
35 Partially correct 30 ms 876 KB Output is partially correct
36 Partially correct 27 ms 992 KB Output is partially correct
37 Partially correct 40 ms 856 KB Output is partially correct
38 Partially correct 37 ms 952 KB Output is partially correct
39 Correct 31 ms 1720 KB Output is correct
40 Correct 30 ms 1228 KB Output is correct
41 Partially correct 26 ms 1372 KB Output is partially correct
42 Partially correct 29 ms 496 KB Output is partially correct
43 Partially correct 16 ms 600 KB Output is partially correct
44 Partially correct 75 ms 856 KB Output is partially correct
45 Correct 32 ms 1468 KB Output is correct
46 Correct 18 ms 876 KB Output is correct
47 Correct 14 ms 868 KB Output is correct
48 Correct 16 ms 600 KB Output is correct