oj.uz

Submission #721499

# Submission time Handle Problem Language Result Execution time Memory
721499 2023-04-11T02:55:38 Z buidangnguyen05 Rarest Insects (IOI22_insects) C++17
99.56 / 100
 87 ms 648 KB 
#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

const int N = 2e3 + 10;
bool inside[N];
set<int> items;
int n;

int min_cardinality(int _n) {
    n = _n;

    for (int i = 0; i < n; ++i) items.insert(i);

    int types = 0;
    for (int i = 0; i < n; ++i) {
        inside[i] = 1;
        move_inside(i);
        ++types;
        if (press_button() == 2) {
            inside[i] = 0;
            move_outside(i);
            --types;
        }
    }

    for (int i = 0; i < n; ++i) if (inside[i]) {
        inside[i] = 0;
        move_outside(i);
    }

    int L = 1, R = n / types, res = 1;
    while (L <= R) {
        int mid = (L + R) >> 1;

        set<int> turn;

        int cnt = 0;
        for (int i : items) {
            if (!inside[i]) {
                inside[i] = 1;
                move_inside(i);

                turn.insert(i);

                if (press_button() > mid) {
                    inside[i] = 0;
                    move_outside(i);

                    turn.erase(i);
                }
            }
            cnt += inside[i];
        }

        if (cnt == types * mid) {
            res = mid;
            L = mid + 1;
        }
        else {
            set<int> nxt;
            for (int i : items) if (inside[i]) nxt.insert(i);
            for (int i : turn) {
                inside[i] = 0;
                move_outside(i);
            }
            items = nxt;

            R = min((int)items.size() / types, mid - 1);
        }
    }

    return res;
}

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 1 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 6 ms 208 KB Output is correct
7 Correct 5 ms 208 KB Output is correct
8 Correct 6 ms 208 KB Output is correct
9 Correct 5 ms 312 KB Output is correct
10 Correct 5 ms 316 KB Output is correct
11 Correct 4 ms 208 KB Output is correct
12 Correct 7 ms 312 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 6 ms 308 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 8 ms 316 KB Output is correct
17 Correct 6 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 7 ms 208 KB Output is correct
20 Correct 7 ms 316 KB Output is correct
21 Correct 5 ms 208 KB Output is correct
22 Correct 5 ms 208 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 1 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 6 ms 208 KB Output is correct
7 Correct 5 ms 208 KB Output is correct
8 Correct 6 ms 208 KB Output is correct
9 Correct 5 ms 312 KB Output is correct
10 Correct 5 ms 316 KB Output is correct
11 Correct 4 ms 208 KB Output is correct
12 Correct 7 ms 312 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 6 ms 308 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 8 ms 316 KB Output is correct
17 Correct 6 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 7 ms 208 KB Output is correct
20 Correct 7 ms 316 KB Output is correct
21 Correct 5 ms 208 KB Output is correct
22 Correct 5 ms 208 KB Output is correct
23 Correct 26 ms 336 KB Output is correct
24 Correct 21 ms 348 KB Output is correct
25 Correct 25 ms 340 KB Output is correct
26 Correct 30 ms 352 KB Output is correct
27 Correct 19 ms 344 KB Output is correct
28 Correct 13 ms 336 KB Output is correct
29 Correct 30 ms 460 KB Output is correct
30 Correct 34 ms 336 KB Output is correct
31 Correct 23 ms 352 KB Output is correct
32 Correct 26 ms 352 KB Output is correct
33 Correct 38 ms 344 KB Output is correct
34 Correct 27 ms 336 KB Output is correct
35 Correct 34 ms 352 KB Output is correct
36 Correct 15 ms 352 KB Output is correct
37 Correct 43 ms 352 KB Output is correct
38 Correct 30 ms 336 KB Output is correct
39 Correct 27 ms 352 KB Output is correct
40 Correct 25 ms 356 KB Output is correct
41 Correct 21 ms 340 KB Output is correct

Subtask #3
74.56 / 75.0

# 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 1 ms 208 KB Output is correct
7 Correct 39 ms 380 KB Output is correct
8 Correct 19 ms 416 KB Output is correct
9 Correct 54 ms 376 KB Output is correct
10 Correct 64 ms 380 KB Output is correct
11 Correct 26 ms 372 KB Output is correct
12 Correct 51 ms 380 KB Output is correct
13 Correct 54 ms 372 KB Output is correct
14 Correct 48 ms 372 KB Output is correct
15 Correct 63 ms 388 KB Output is correct
16 Correct 57 ms 648 KB Output is correct
17 Correct 65 ms 420 KB Output is correct
18 Correct 71 ms 384 KB Output is correct
19 Partially correct 47 ms 376 KB Output is partially correct
20 Correct 63 ms 424 KB Output is correct
21 Correct 87 ms 380 KB Output is correct
22 Correct 42 ms 372 KB Output is correct
23 Correct 47 ms 456 KB Output is correct
24 Correct 47 ms 456 KB Output is correct
25 Correct 51 ms 500 KB Output is correct
26 Correct 37 ms 384 KB Output is correct
27 Partially correct 45 ms 388 KB Output is partially correct
28 Partially correct 61 ms 376 KB Output is partially correct
29 Partially correct 66 ms 504 KB Output is partially correct
30 Partially correct 55 ms 420 KB Output is partially correct
31 Correct 38 ms 516 KB Output is correct
32 Correct 33 ms 436 KB Output is correct
33 Correct 49 ms 456 KB Output is correct
34 Correct 54 ms 456 KB Output is correct
35 Partially correct 45 ms 428 KB Output is partially correct
36 Partially correct 57 ms 388 KB Output is partially correct
37 Correct 47 ms 408 KB Output is correct
38 Correct 63 ms 420 KB Output is correct
39 Partially correct 57 ms 392 KB Output is partially correct
40 Partially correct 48 ms 372 KB Output is partially correct
41 Partially correct 42 ms 412 KB Output is partially correct
42 Partially correct 72 ms 412 KB Output is partially correct
43 Correct 20 ms 208 KB Output is correct
44 Correct 43 ms 372 KB Output is correct
45 Correct 50 ms 388 KB Output is correct
46 Correct 52 ms 336 KB Output is correct
47 Correct 45 ms 376 KB Output is correct
48 Correct 53 ms 408 KB Output is correct