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Submission #721497

# Submission time Handle Problem Language Result Execution time Memory
721497 2023-04-11T02:47:55 Z buidangnguyen05 Rarest Insects (IOI22_insects) C++17
99.56 / 100
 104 ms 520 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 = mid - 1;
        }
    }

    return res;
}

Subtask #1
10.0 / 10.0

# 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 1 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 7 ms 320 KB Output is correct
9 Correct 6 ms 308 KB Output is correct
10 Correct 5 ms 312 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 6 ms 312 KB Output is correct
13 Correct 3 ms 208 KB Output is correct
14 Correct 8 ms 320 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 7 ms 308 KB Output is correct
18 Correct 6 ms 312 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 5 ms 312 KB Output is correct
21 Correct 5 ms 320 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 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 1 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 7 ms 320 KB Output is correct
9 Correct 6 ms 308 KB Output is correct
10 Correct 5 ms 312 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 6 ms 312 KB Output is correct
13 Correct 3 ms 208 KB Output is correct
14 Correct 8 ms 320 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 7 ms 308 KB Output is correct
18 Correct 6 ms 312 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 5 ms 312 KB Output is correct
21 Correct 5 ms 320 KB Output is correct
22 Correct 5 ms 208 KB Output is correct
23 Correct 31 ms 344 KB Output is correct
24 Correct 17 ms 348 KB Output is correct
25 Correct 27 ms 348 KB Output is correct
26 Correct 30 ms 344 KB Output is correct
27 Correct 27 ms 340 KB Output is correct
28 Correct 20 ms 348 KB Output is correct
29 Correct 15 ms 344 KB Output is correct
30 Correct 39 ms 472 KB Output is correct
31 Correct 31 ms 456 KB Output is correct
32 Correct 20 ms 352 KB Output is correct
33 Correct 28 ms 356 KB Output is correct
34 Correct 44 ms 336 KB Output is correct
35 Correct 36 ms 336 KB Output is correct
36 Correct 27 ms 368 KB Output is correct
37 Correct 27 ms 336 KB Output is correct
38 Correct 15 ms 476 KB Output is correct
39 Correct 31 ms 344 KB Output is correct
40 Correct 25 ms 352 KB Output is correct
41 Correct 22 ms 456 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 1 ms 208 KB Output is correct
3 Correct 1 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 63 ms 380 KB Output is correct
8 Correct 33 ms 372 KB Output is correct
9 Correct 59 ms 380 KB Output is correct
10 Correct 58 ms 424 KB Output is correct
11 Correct 42 ms 336 KB Output is correct
12 Correct 46 ms 412 KB Output is correct
13 Correct 60 ms 456 KB Output is correct
14 Correct 49 ms 380 KB Output is correct
15 Correct 60 ms 420 KB Output is correct
16 Correct 70 ms 424 KB Output is correct
17 Correct 60 ms 456 KB Output is correct
18 Correct 56 ms 428 KB Output is correct
19 Partially correct 67 ms 376 KB Output is partially correct
20 Correct 62 ms 520 KB Output is correct
21 Correct 44 ms 404 KB Output is correct
22 Correct 62 ms 420 KB Output is correct
23 Correct 44 ms 456 KB Output is correct
24 Correct 62 ms 456 KB Output is correct
25 Correct 44 ms 392 KB Output is correct
26 Correct 38 ms 396 KB Output is correct
27 Partially correct 59 ms 336 KB Output is partially correct
28 Partially correct 61 ms 400 KB Output is partially correct
29 Partially correct 42 ms 420 KB Output is partially correct
30 Partially correct 59 ms 400 KB Output is partially correct
31 Correct 71 ms 376 KB Output is correct
32 Correct 48 ms 376 KB Output is correct
33 Correct 50 ms 376 KB Output is correct
34 Correct 63 ms 424 KB Output is correct
35 Partially correct 68 ms 424 KB Output is partially correct
36 Partially correct 52 ms 424 KB Output is partially correct
37 Correct 64 ms 392 KB Output is correct
38 Correct 60 ms 412 KB Output is correct
39 Partially correct 69 ms 388 KB Output is partially correct
40 Partially correct 104 ms 372 KB Output is partially correct
41 Partially correct 63 ms 384 KB Output is partially correct
42 Partially correct 71 ms 388 KB Output is partially correct
43 Correct 10 ms 336 KB Output is correct
44 Correct 56 ms 368 KB Output is correct
45 Correct 59 ms 336 KB Output is correct
46 Correct 41 ms 496 KB Output is correct
47 Correct 57 ms 392 KB Output is correct
48 Correct 59 ms 392 KB Output is correct