oj.uz

Submission #932556

# Submission time Handle Problem Language Result Execution time Memory
932556 2024-02-23T15:37:14 Z velislavgarkov Rarest Insects (IOI22_insects) C++17
99.89 / 100
 40 ms 1116 KB 
#include "insects.h"
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
const int MAXN=1e4;
bool used[MAXN];
int perm[MAXN];
vector <int> last, removed;
int n, ss, d;
bool check(int x) {
    if (!last.empty()) last.clear();
    if (!removed.empty()) removed.clear();
    for (int i=0;i<n;i++) {
        int j=perm[i];
        if (used[j]) continue;
        move_inside(j);
        if (press_button()>x) {
            move_outside(j);
            removed.push_back(j);
        } else last.push_back(j);
    }
    if (ss+last.size()==d*x) return true;
    return false;
}
int min_cardinality(int N) {
    n=N;
    d=0;
    for (int i=0;i<n;i++) perm[i]=i;
    random_shuffle(perm,perm+n);
    for (int i=0;i<n;i++) {
        int j=perm[i];
        move_inside(j);
        if (press_button()>1) move_outside(j);
        else {
            used[j]=true;
            d++;
        }
    }
    ss=d;
    int l, r, mid;
    l=1; r=n/d+1;
    while (l<r-1) {
        mid=(l+r)/2;
        if (check(mid)) {
            l=mid;
            ss+=last.size();
            for (auto i:last) used[i]=true;
        } else {
            r=mid;
            for (auto i:removed) used[i]=true;
            for (auto i:last) move_outside(i);
        }
    }
    return l;
}

Compilation message

insects.cpp: In function 'bool check(int)':
insects.cpp:23:23: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   23 |     if (ss+last.size()==d*x) return true;
      |         ~~~~~~~~~~~~~~^~~~~

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 0 ms 592 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 2 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 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 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 592 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 2 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 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 16 ms 704 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 13 ms 848 KB Output is correct
26 Correct 10 ms 856 KB Output is correct
27 Correct 12 ms 856 KB Output is correct
28 Correct 4 ms 344 KB Output is correct
29 Correct 12 ms 856 KB Output is correct
30 Correct 13 ms 696 KB Output is correct
31 Correct 14 ms 452 KB Output is correct
32 Correct 16 ms 448 KB Output is correct
33 Correct 15 ms 708 KB Output is correct
34 Correct 13 ms 856 KB Output is correct
35 Correct 15 ms 600 KB Output is correct
36 Correct 14 ms 696 KB Output is correct
37 Correct 14 ms 704 KB Output is correct
38 Correct 9 ms 600 KB Output is correct
39 Correct 10 ms 604 KB Output is correct
40 Correct 7 ms 856 KB Output is correct
41 Correct 6 ms 344 KB Output is correct

Subtask #3
74.89 / 75.0

# 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 596 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 32 ms 848 KB Output is correct
8 Correct 9 ms 344 KB Output is correct
9 Correct 28 ms 700 KB Output is correct
10 Correct 40 ms 592 KB Output is correct
11 Correct 21 ms 1116 KB Output is correct
12 Correct 15 ms 852 KB Output is correct
13 Correct 24 ms 440 KB Output is correct
14 Correct 31 ms 936 KB Output is correct
15 Correct 25 ms 932 KB Output is correct
16 Correct 23 ms 344 KB Output is correct
17 Correct 35 ms 852 KB Output is correct
18 Correct 30 ms 700 KB Output is correct
19 Partially correct 30 ms 600 KB Output is partially correct
20 Correct 31 ms 444 KB Output is correct
21 Correct 28 ms 440 KB Output is correct
22 Correct 30 ms 604 KB Output is correct
23 Correct 23 ms 452 KB Output is correct
24 Correct 21 ms 448 KB Output is correct
25 Correct 14 ms 688 KB Output is correct
26 Correct 13 ms 344 KB Output is correct
27 Correct 24 ms 596 KB Output is correct
28 Correct 27 ms 440 KB Output is correct
29 Partially correct 30 ms 600 KB Output is partially correct
30 Partially correct 29 ms 704 KB Output is partially correct
31 Correct 28 ms 600 KB Output is correct
32 Correct 26 ms 848 KB Output is correct
33 Correct 24 ms 600 KB Output is correct
34 Correct 26 ms 344 KB Output is correct
35 Partially correct 39 ms 592 KB Output is partially correct
36 Partially correct 27 ms 696 KB Output is partially correct
37 Correct 34 ms 604 KB Output is correct
38 Correct 27 ms 592 KB Output is correct
39 Correct 29 ms 588 KB Output is correct
40 Correct 28 ms 848 KB Output is correct
41 Partially correct 33 ms 852 KB Output is partially correct
42 Partially correct 38 ms 688 KB Output is partially correct
43 Correct 8 ms 600 KB Output is correct
44 Correct 19 ms 692 KB Output is correct
45 Correct 29 ms 600 KB Output is correct
46 Correct 13 ms 592 KB Output is correct
47 Correct 17 ms 448 KB Output is correct
48 Correct 14 ms 600 KB Output is correct