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Submission #1078367

# Submission time Handle Problem Language Result Execution time Memory
1078367 2024-08-27T15:53:41 Z allin27x Rarest Insects (IOI22_insects) C++17
100 / 100
 41 ms 932 KB 
#include <bits/stdc++.h>
#include "insects.h"
using namespace std;
#define int long long

//void move_inside(int)
//void move_outside(int)
// int press_button()


signed min_cardinality(signed N){
    std::random_device rd;
    std::mt19937 g(rd());
    vector<int> in,out; int k;
    for (int i=0; i<N; i++) {
        move_inside(i);
        if (press_button() == 2) move_outside(i);
        else in.push_back(i);
    }
    k = in.size(); for (int x: in) move_outside(x);
    int ans = 0;
    vector<int> tot; for (int i=0; i<N; i++) tot.push_back(i);
    while (1) {
        int mx =  (int)tot.size()/k;
        if (!mx) return ans;
        int m = (mx+1) / 2;
        in.clear(); out.clear();
        shuffle(tot.begin(), tot.end(), g);

        for (int x: tot) {
            if (in.size()==m*k) {out.push_back(x); continue;}
            move_inside(x);
            if (press_button() == m+1) move_outside(x), out.push_back(x);
            else in.push_back(x);
        }

        if (in.size() == m * k) {
            ans += m; tot = out;
        } else {
            tot = in;
        }
        for (int x: in) move_outside(x);
    }
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:31:26: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   31 |             if (in.size()==m*k) {out.push_back(x); continue;}
      |                 ~~~~~~~~~^~~~~
insects.cpp:37:23: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   37 |         if (in.size() == m * k) {
      |             ~~~~~~~~~~^~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 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 444 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 3 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 2 ms 424 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 340 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 2 ms 344 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 1 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 444 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 3 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 2 ms 424 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 340 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
23 Correct 9 ms 452 KB Output is correct
24 Correct 12 ms 600 KB Output is correct
25 Correct 8 ms 456 KB Output is correct
26 Correct 18 ms 612 KB Output is correct
27 Correct 11 ms 344 KB Output is correct
28 Correct 8 ms 344 KB Output is correct
29 Correct 20 ms 456 KB Output is correct
30 Correct 20 ms 700 KB Output is correct
31 Correct 10 ms 600 KB Output is correct
32 Correct 10 ms 444 KB Output is correct
33 Correct 9 ms 600 KB Output is correct
34 Correct 18 ms 344 KB Output is correct
35 Correct 11 ms 600 KB Output is correct
36 Correct 10 ms 344 KB Output is correct
37 Correct 13 ms 344 KB Output is correct
38 Correct 12 ms 344 KB Output is correct
39 Correct 13 ms 344 KB Output is correct
40 Correct 15 ms 600 KB Output is correct
41 Correct 9 ms 344 KB Output is correct

Subtask #3
75.0 / 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 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 21 ms 432 KB Output is correct
8 Correct 29 ms 344 KB Output is correct
9 Correct 24 ms 444 KB Output is correct
10 Correct 37 ms 932 KB Output is correct
11 Correct 41 ms 592 KB Output is correct
12 Correct 15 ms 608 KB Output is correct
13 Correct 28 ms 468 KB Output is correct
14 Correct 40 ms 592 KB Output is correct
15 Correct 24 ms 592 KB Output is correct
16 Correct 20 ms 344 KB Output is correct
17 Correct 23 ms 344 KB Output is correct
18 Correct 20 ms 440 KB Output is correct
19 Correct 17 ms 588 KB Output is correct
20 Correct 29 ms 444 KB Output is correct
21 Correct 26 ms 344 KB Output is correct
22 Correct 31 ms 600 KB Output is correct
23 Correct 36 ms 436 KB Output is correct
24 Correct 33 ms 716 KB Output is correct
25 Correct 35 ms 344 KB Output is correct
26 Correct 20 ms 688 KB Output is correct
27 Correct 33 ms 676 KB Output is correct
28 Correct 20 ms 344 KB Output is correct
29 Correct 22 ms 600 KB Output is correct
30 Correct 26 ms 436 KB Output is correct
31 Correct 29 ms 436 KB Output is correct
32 Correct 34 ms 688 KB Output is correct
33 Correct 23 ms 344 KB Output is correct
34 Correct 35 ms 448 KB Output is correct
35 Correct 20 ms 440 KB Output is correct
36 Correct 21 ms 452 KB Output is correct
37 Correct 28 ms 344 KB Output is correct
38 Correct 23 ms 456 KB Output is correct
39 Correct 30 ms 708 KB Output is correct
40 Correct 29 ms 444 KB Output is correct
41 Correct 31 ms 452 KB Output is correct
42 Correct 28 ms 676 KB Output is correct
43 Correct 8 ms 344 KB Output is correct
44 Correct 18 ms 344 KB Output is correct
45 Correct 21 ms 436 KB Output is correct
46 Correct 34 ms 600 KB Output is correct
47 Correct 21 ms 344 KB Output is correct
48 Correct 34 ms 596 KB Output is correct