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Submission #830551

# Submission time Handle Problem Language Result Execution time Memory
830551 2023-08-19T07:56:52 Z tolbi Rarest Insects (IOI22_insects) C++17
50 / 100
 146 ms 312 KB 
#include <bits/stdc++.h>
using namespace std;
mt19937 ayahya(chrono::high_resolution_clock().now().time_since_epoch().count());
#include "insects.h"
int min_cardinality(int n) {
    function<int(int)> f;
    vector<int> hash(n);
    iota(hash.begin(), hash.end(), 0);
    for (int i = n-1; i >= 0; i--){
        swap(hash[i],hash[ayahya()%(i+1)]);
    }
    map<int,int> cev;
    f = [&](int x)->int{
        if (cev.count(x)) return cev[x];
        int ans = 0;
        vector<int> crr;
        for (int i = 0; i < n; i++){
            crr.push_back(hash[i]);
            move_inside(hash[i]);
            if (press_button()>x){
                ans++;
                crr.pop_back();
                move_outside(hash[i]);
            }
        }
        for (int i = 0; i < crr.size(); ++i)
        {
            move_outside(crr[i]);
        }
        return cev[x]=ans;
    };
    int diff = n-f(1);
    if (diff==1) return n;
    int l = 1, r = n/diff;
    while (l<r){
        int mid = l+(r-l+1)/2;
        if (f(mid)>n-(mid*diff)){
            r=mid-1;
        }
        else l = mid;
    }
    return l;
}

Compilation message

insects.cpp: In lambda function:
insects.cpp:26:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         for (int i = 0; i < crr.size(); ++i)
      |                         ~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 8 ms 208 KB Output is correct
9 Correct 7 ms 300 KB Output is correct
10 Correct 8 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 9 ms 304 KB Output is correct
13 Correct 7 ms 208 KB Output is correct
14 Correct 10 ms 208 KB Output is correct
15 Correct 9 ms 300 KB Output is correct
16 Correct 9 ms 304 KB Output is correct
17 Correct 9 ms 304 KB Output is correct
18 Correct 7 ms 208 KB Output is correct
19 Correct 6 ms 304 KB Output is correct
20 Correct 4 ms 308 KB Output is correct
21 Correct 5 ms 208 KB Output is correct
22 Correct 2 ms 308 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 8 ms 208 KB Output is correct
9 Correct 7 ms 300 KB Output is correct
10 Correct 8 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 9 ms 304 KB Output is correct
13 Correct 7 ms 208 KB Output is correct
14 Correct 10 ms 208 KB Output is correct
15 Correct 9 ms 300 KB Output is correct
16 Correct 9 ms 304 KB Output is correct
17 Correct 9 ms 304 KB Output is correct
18 Correct 7 ms 208 KB Output is correct
19 Correct 6 ms 304 KB Output is correct
20 Correct 4 ms 308 KB Output is correct
21 Correct 5 ms 208 KB Output is correct
22 Correct 2 ms 308 KB Output is correct
23 Correct 9 ms 208 KB Output is correct
24 Correct 12 ms 304 KB Output is correct
25 Correct 37 ms 312 KB Output is correct
26 Correct 24 ms 304 KB Output is correct
27 Correct 56 ms 208 KB Output is correct
28 Correct 11 ms 208 KB Output is correct
29 Correct 75 ms 208 KB Output is correct
30 Correct 21 ms 304 KB Output is correct
31 Correct 75 ms 292 KB Output is correct
32 Correct 50 ms 292 KB Output is correct
33 Correct 47 ms 292 KB Output is correct
34 Correct 70 ms 288 KB Output is correct
35 Correct 62 ms 304 KB Output is correct
36 Correct 43 ms 312 KB Output is correct
37 Correct 33 ms 292 KB Output is correct
38 Correct 31 ms 208 KB Output is correct
39 Correct 16 ms 220 KB Output is correct
40 Correct 13 ms 296 KB Output is correct
41 Correct 8 ms 208 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 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Partially correct 1 ms 208 KB Output is partially correct
7 Correct 13 ms 208 KB Output is correct
8 Correct 16 ms 308 KB Output is correct
9 Partially correct 68 ms 300 KB Output is partially correct
10 Partially correct 81 ms 304 KB Output is partially correct
11 Partially correct 93 ms 292 KB Output is partially correct
12 Correct 24 ms 312 KB Output is correct
13 Partially correct 129 ms 292 KB Output is partially correct
14 Partially correct 95 ms 300 KB Output is partially correct
15 Partially correct 101 ms 312 KB Output is partially correct
16 Partially correct 133 ms 308 KB Output is partially correct
17 Partially correct 137 ms 308 KB Output is partially correct
18 Partially correct 137 ms 312 KB Output is partially correct
19 Partially correct 90 ms 292 KB Output is partially correct
20 Partially correct 85 ms 308 KB Output is partially correct
21 Partially correct 100 ms 296 KB Output is partially correct
22 Partially correct 64 ms 312 KB Output is partially correct
23 Partially correct 68 ms 300 KB Output is partially correct
24 Correct 31 ms 312 KB Output is correct
25 Correct 19 ms 308 KB Output is correct
26 Correct 13 ms 296 KB Output is correct
27 Partially correct 107 ms 308 KB Output is partially correct
28 Partially correct 77 ms 308 KB Output is partially correct
29 Partially correct 82 ms 300 KB Output is partially correct
30 Partially correct 146 ms 308 KB Output is partially correct
31 Partially correct 112 ms 292 KB Output is partially correct
32 Partially correct 71 ms 300 KB Output is partially correct
33 Partially correct 88 ms 308 KB Output is partially correct
34 Partially correct 82 ms 296 KB Output is partially correct
35 Partially correct 85 ms 304 KB Output is partially correct
36 Partially correct 88 ms 292 KB Output is partially correct
37 Partially correct 82 ms 292 KB Output is partially correct
38 Partially correct 82 ms 308 KB Output is partially correct
39 Partially correct 45 ms 308 KB Output is partially correct
40 Partially correct 93 ms 308 KB Output is partially correct
41 Partially correct 117 ms 292 KB Output is partially correct
42 Partially correct 87 ms 296 KB Output is partially correct
43 Partially correct 30 ms 208 KB Output is partially correct
44 Partially correct 85 ms 312 KB Output is partially correct
45 Partially correct 142 ms 304 KB Output is partially correct
46 Correct 35 ms 312 KB Output is correct
47 Correct 23 ms 312 KB Output is correct
48 Correct 26 ms 304 KB Output is correct