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Submission #736920

# Submission time Handle Problem Language Result Execution time Memory
736920 2023-05-06T10:42:27 Z onlk97 Rarest Insects (IOI22_insects) C++17
50 / 100
 239 ms 604 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;

int min_cardinality(int N) {
    mt19937 mt(time(nullptr));
    vector <int> v;
    for (int i=0; i<N; i++) v.push_back(i);
    shuffle(v.begin(),v.end(),mt);
    set <int> s;
    for (int i=0; i<N; i++){
        move_inside(v[i]);
        s.insert(v[i]);
        int tp=press_button();
        if (tp>1){
            move_outside(v[i]);
            s.erase(v[i]);
        }
    }
    for (int i:s) move_outside(i);
    int cnt=s.size();
    int l=1,r=N/cnt;
    if (cnt==1) return N;
    while (l<r){
        int mid=(l+r+1)/2;
        for (int i=0; i<N; i++){
            move_inside(v[i]);
            s.insert(v[i]);
            int tp=(i+1>=mid?press_button():0);
            if (tp>mid){
                move_outside(v[i]);
                s.erase(v[i]);
            }
        }
        if (s.size()==mid*cnt) l=mid;
        else r=mid-1;
        if (l!=r){
            for (int i:s) move_outside(i);
        }
    }
    return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:35:21: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |         if (s.size()==mid*cnt) l=mid;
      |             ~~~~~~~~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 3 ms 312 KB Output is correct
8 Correct 10 ms 312 KB Output is correct
9 Correct 11 ms 208 KB Output is correct
10 Correct 12 ms 208 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 13 ms 208 KB Output is correct
13 Correct 10 ms 308 KB Output is correct
14 Correct 10 ms 208 KB Output is correct
15 Correct 9 ms 312 KB Output is correct
16 Correct 9 ms 208 KB Output is correct
17 Correct 11 ms 208 KB Output is correct
18 Correct 12 ms 208 KB Output is correct
19 Correct 10 ms 304 KB Output is correct
20 Correct 7 ms 208 KB Output is correct
21 Correct 6 ms 208 KB Output is correct
22 Correct 3 ms 308 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 3 ms 312 KB Output is correct
8 Correct 10 ms 312 KB Output is correct
9 Correct 11 ms 208 KB Output is correct
10 Correct 12 ms 208 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 13 ms 208 KB Output is correct
13 Correct 10 ms 308 KB Output is correct
14 Correct 10 ms 208 KB Output is correct
15 Correct 9 ms 312 KB Output is correct
16 Correct 9 ms 208 KB Output is correct
17 Correct 11 ms 208 KB Output is correct
18 Correct 12 ms 208 KB Output is correct
19 Correct 10 ms 304 KB Output is correct
20 Correct 7 ms 208 KB Output is correct
21 Correct 6 ms 208 KB Output is correct
22 Correct 3 ms 308 KB Output is correct
23 Correct 11 ms 208 KB Output is correct
24 Correct 8 ms 336 KB Output is correct
25 Correct 68 ms 332 KB Output is correct
26 Correct 72 ms 300 KB Output is correct
27 Correct 60 ms 288 KB Output is correct
28 Correct 6 ms 208 KB Output is correct
29 Correct 84 ms 288 KB Output is correct
30 Correct 60 ms 312 KB Output is correct
31 Correct 66 ms 552 KB Output is correct
32 Correct 58 ms 328 KB Output is correct
33 Correct 83 ms 312 KB Output is correct
34 Correct 58 ms 416 KB Output is correct
35 Correct 39 ms 312 KB Output is correct
36 Correct 79 ms 308 KB Output is correct
37 Correct 61 ms 304 KB Output is correct
38 Correct 34 ms 308 KB Output is correct
39 Correct 14 ms 324 KB Output is correct
40 Correct 17 ms 448 KB Output is correct
41 Correct 12 ms 320 KB Output is correct

Subtask #3
25.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Partially correct 1 ms 208 KB Output is partially correct
7 Correct 23 ms 208 KB Output is correct
8 Correct 11 ms 336 KB Output is correct
9 Partially correct 123 ms 304 KB Output is partially correct
10 Partially correct 122 ms 416 KB Output is partially correct
11 Partially correct 210 ms 208 KB Output is partially correct
12 Correct 51 ms 328 KB Output is correct
13 Partially correct 239 ms 292 KB Output is partially correct
14 Partially correct 83 ms 340 KB Output is partially correct
15 Partially correct 108 ms 384 KB Output is partially correct
16 Partially correct 179 ms 548 KB Output is partially correct
17 Partially correct 162 ms 376 KB Output is partially correct
18 Partially correct 131 ms 448 KB Output is partially correct
19 Partially correct 155 ms 384 KB Output is partially correct
20 Partially correct 181 ms 444 KB Output is partially correct
21 Partially correct 125 ms 364 KB Output is partially correct
22 Partially correct 158 ms 564 KB Output is partially correct
23 Partially correct 77 ms 316 KB Output is partially correct
24 Correct 64 ms 324 KB Output is correct
25 Correct 39 ms 352 KB Output is correct
26 Correct 19 ms 340 KB Output is correct
27 Partially correct 134 ms 604 KB Output is partially correct
28 Partially correct 123 ms 380 KB Output is partially correct
29 Partially correct 187 ms 564 KB Output is partially correct
30 Partially correct 94 ms 380 KB Output is partially correct
31 Partially correct 96 ms 364 KB Output is partially correct
32 Partially correct 118 ms 364 KB Output is partially correct
33 Partially correct 109 ms 312 KB Output is partially correct
34 Partially correct 108 ms 428 KB Output is partially correct
35 Partially correct 156 ms 380 KB Output is partially correct
36 Partially correct 104 ms 376 KB Output is partially correct
37 Partially correct 123 ms 292 KB Output is partially correct
38 Partially correct 134 ms 456 KB Output is partially correct
39 Partially correct 73 ms 312 KB Output is partially correct
40 Partially correct 113 ms 296 KB Output is partially correct
41 Partially correct 156 ms 396 KB Output is partially correct
42 Partially correct 117 ms 304 KB Output is partially correct
43 Partially correct 33 ms 288 KB Output is partially correct
44 Partially correct 130 ms 292 KB Output is partially correct
45 Partially correct 119 ms 508 KB Output is partially correct
46 Correct 30 ms 456 KB Output is correct
47 Correct 43 ms 320 KB Output is correct
48 Correct 40 ms 304 KB Output is correct