oj.uz

Submission #932554

# Submission time Handle Problem Language Result Execution time Memory
932554 2024-02-23T15:36:41 Z velislavgarkov Rarest Insects (IOI22_insects) C++17
99.18 / 100
 44 ms 1100 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-1;
            for (auto i:removed) used[i]=true;
            for (auto i:last) move_outside(i);
        }
    }
    if (check(r)) return r;
    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 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 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 344 KB Output is correct
7 Correct 1 ms 344 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 600 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 3 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 3 ms 344 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 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 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 344 KB Output is correct
7 Correct 1 ms 344 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 600 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 3 ms 340 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 3 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 3 ms 344 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 13 ms 452 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 12 ms 704 KB Output is correct
26 Correct 12 ms 852 KB Output is correct
27 Correct 9 ms 856 KB Output is correct
28 Correct 7 ms 444 KB Output is correct
29 Correct 14 ms 600 KB Output is correct
30 Correct 14 ms 852 KB Output is correct
31 Correct 16 ms 600 KB Output is correct
32 Correct 13 ms 600 KB Output is correct
33 Correct 14 ms 600 KB Output is correct
34 Correct 12 ms 600 KB Output is correct
35 Correct 16 ms 448 KB Output is correct
36 Correct 14 ms 600 KB Output is correct
37 Correct 18 ms 600 KB Output is correct
38 Correct 13 ms 700 KB Output is correct
39 Correct 10 ms 452 KB Output is correct
40 Correct 8 ms 448 KB Output is correct
41 Correct 7 ms 600 KB Output is correct

Subtask #3
74.18 / 75.0

# 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 0 ms 344 KB Output is correct
7 Correct 29 ms 708 KB Output is correct
8 Correct 9 ms 344 KB Output is correct
9 Correct 32 ms 684 KB Output is correct
10 Correct 26 ms 848 KB Output is correct
11 Correct 22 ms 684 KB Output is correct
12 Correct 13 ms 596 KB Output is correct
13 Correct 25 ms 684 KB Output is correct
14 Correct 23 ms 700 KB Output is correct
15 Correct 34 ms 688 KB Output is correct
16 Correct 44 ms 680 KB Output is correct
17 Correct 41 ms 444 KB Output is correct
18 Correct 25 ms 1100 KB Output is correct
19 Partially correct 33 ms 700 KB Output is partially correct
20 Correct 26 ms 688 KB Output is correct
21 Correct 31 ms 688 KB Output is correct
22 Partially correct 32 ms 680 KB Output is partially correct
23 Correct 27 ms 428 KB Output is correct
24 Correct 21 ms 592 KB Output is correct
25 Correct 18 ms 452 KB Output is correct
26 Correct 12 ms 448 KB Output is correct
27 Correct 29 ms 600 KB Output is correct
28 Correct 25 ms 680 KB Output is correct
29 Partially correct 24 ms 848 KB Output is partially correct
30 Partially correct 29 ms 592 KB Output is partially correct
31 Correct 25 ms 688 KB Output is correct
32 Correct 30 ms 940 KB Output is correct
33 Correct 23 ms 708 KB Output is correct
34 Correct 27 ms 712 KB Output is correct
35 Partially correct 28 ms 704 KB Output is partially correct
36 Partially correct 29 ms 436 KB Output is partially correct
37 Correct 23 ms 444 KB Output is correct
38 Correct 24 ms 600 KB Output is correct
39 Correct 26 ms 700 KB Output is correct
40 Correct 37 ms 680 KB Output is correct
41 Partially correct 25 ms 848 KB Output is partially correct
42 Partially correct 38 ms 940 KB Output is partially correct
43 Correct 8 ms 440 KB Output is correct
44 Correct 19 ms 452 KB Output is correct
45 Correct 26 ms 956 KB Output is correct
46 Correct 14 ms 592 KB Output is correct
47 Correct 12 ms 600 KB Output is correct
48 Correct 15 ms 440 KB Output is correct