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Submission #627796

# Submission time Handle Problem Language Result Execution time Memory
627796 2022-08-12T23:16:49 Z peti1234 Rarest Insects (IOI22_insects) C++17
100 / 100
 62 ms 296 KB 
#include <bits/stdc++.h>

using namespace std;
#include "insects.h"
const int c=2005;
int cnt, si, ord[c];
bool v[c], fix[c];
int add(int a) {
    assert(!v[a]);
    v[a]=true;
    si++;
    move_inside(a);
    return press_button();
}
void sub(int a) {
    assert(v[a]);
    v[a]=false;
    si--;
    move_outside(a);
}
int min_cardinality(int N) {
    for (int i=0; i<N; i++) {
        ord[i]=i;
    }
    random_shuffle(ord, ord+N);
    for (int i=0; i<N; i++) {
        if (add(i)==2) {
            sub(i);
        } else {
            cnt++;
        }
    }
    for (int i=0; i<N; i++) {
        if (v[i]) {
            fix[i]=1;
        }
    }
    int lo=1, hi=N/cnt+1, mid;
    while (hi-lo>1) {
        mid=(hi+lo)/2;
        for (int i=0; i<N; i++) {
            int pos=ord[i];
            if (fix[pos] || si==cnt*mid) continue;
            if (add(pos)>mid) {
                sub(pos);
            }
        }
        if (si==cnt*mid) {
            lo=mid;
            for (int i=0; i<N; i++) {
                if (v[i]) {
                    fix[i]=1;
                }
            }
        } else {
            hi=mid;
            for (int i=0; i<N; i++) {
                if (fix[i]) continue;
                if (!v[i]) fix[i]=1;
                else {
                    sub(i);
                }
            }
        }
    }
    return lo;
}
/*
int main()
{
    
    return 0;
}
*/

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 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 4 ms 208 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 3 ms 208 KB Output is correct
20 Correct 4 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 208 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 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 4 ms 208 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 3 ms 208 KB Output is correct
20 Correct 4 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 208 KB Output is correct
23 Correct 20 ms 208 KB Output is correct
24 Correct 9 ms 208 KB Output is correct
25 Correct 25 ms 208 KB Output is correct
26 Correct 32 ms 208 KB Output is correct
27 Correct 13 ms 208 KB Output is correct
28 Correct 8 ms 208 KB Output is correct
29 Correct 22 ms 208 KB Output is correct
30 Correct 22 ms 208 KB Output is correct
31 Correct 27 ms 212 KB Output is correct
32 Correct 18 ms 208 KB Output is correct
33 Correct 15 ms 208 KB Output is correct
34 Correct 27 ms 208 KB Output is correct
35 Correct 23 ms 208 KB Output is correct
36 Correct 21 ms 208 KB Output is correct
37 Correct 25 ms 208 KB Output is correct
38 Correct 24 ms 208 KB Output is correct
39 Correct 19 ms 208 KB Output is correct
40 Correct 16 ms 208 KB Output is correct
41 Correct 9 ms 208 KB Output is correct

Subtask #3
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 31 ms 208 KB Output is correct
8 Correct 20 ms 208 KB Output is correct
9 Correct 19 ms 208 KB Output is correct
10 Correct 40 ms 208 KB Output is correct
11 Correct 40 ms 296 KB Output is correct
12 Correct 28 ms 208 KB Output is correct
13 Correct 26 ms 208 KB Output is correct
14 Correct 41 ms 288 KB Output is correct
15 Correct 44 ms 208 KB Output is correct
16 Correct 29 ms 208 KB Output is correct
17 Correct 41 ms 208 KB Output is correct
18 Correct 27 ms 208 KB Output is correct
19 Correct 45 ms 208 KB Output is correct
20 Correct 51 ms 208 KB Output is correct
21 Correct 34 ms 288 KB Output is correct
22 Correct 61 ms 292 KB Output is correct
23 Correct 23 ms 292 KB Output is correct
24 Correct 24 ms 296 KB Output is correct
25 Correct 28 ms 208 KB Output is correct
26 Correct 16 ms 208 KB Output is correct
27 Correct 44 ms 208 KB Output is correct
28 Correct 45 ms 208 KB Output is correct
29 Correct 21 ms 208 KB Output is correct
30 Correct 47 ms 208 KB Output is correct
31 Correct 38 ms 208 KB Output is correct
32 Correct 62 ms 208 KB Output is correct
33 Correct 54 ms 256 KB Output is correct
34 Correct 55 ms 208 KB Output is correct
35 Correct 30 ms 208 KB Output is correct
36 Correct 40 ms 208 KB Output is correct
37 Correct 48 ms 208 KB Output is correct
38 Correct 57 ms 208 KB Output is correct
39 Correct 53 ms 208 KB Output is correct
40 Correct 50 ms 208 KB Output is correct
41 Correct 49 ms 208 KB Output is correct
42 Correct 22 ms 208 KB Output is correct
43 Correct 6 ms 208 KB Output is correct
44 Correct 34 ms 208 KB Output is correct
45 Correct 18 ms 208 KB Output is correct
46 Correct 31 ms 208 KB Output is correct
47 Correct 31 ms 208 KB Output is correct
48 Correct 41 ms 208 KB Output is correct