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Submission #766903

# Submission time Handle Problem Language Result Execution time Memory
766903 2023-06-26T08:47:40 Z birktj Rarest Insects (IOI22_insects) C++17
99.89 / 100
 59 ms 336 KB 
#include "insects.h"
#include <stack>
#include <algorithm>
#include <iostream>

using namespace std;

stack<int> box, pile, discard;

void fill_box(int x) {
    while (!pile.empty()) {
        int i = pile.top();
        pile.pop();
        move_inside(i);
        box.push(i);
        int maxCount = press_button();
        if (maxCount > x) {
            move_outside(i);
            box.pop();
            discard.push(i);
        }
    }
}

void empty_box() {
    while (!box.empty()) {
        int i = box.top();
        box.pop();
        move_outside(i);
        discard.push(i);
    }
}

int min_cardinality(int N) {
    for (int i = 0; i < N; i++) {
        pile.push(i);
    }
    fill_box(1);
    swap(discard, pile);
    int k = box.size();
    empty_box();
    discard = {};

    //printCounts();

    //cerr << "piles size = " << pile.size() << endl; 
    //cerr << "discard size = " << discard.size() << endl; 
    //cerr << "box size = " << box.size() << endl; 

    int l = 1;
    int u = N/k;

    while (l + 1 <= u) {
        int m = (l + u + 1) / 2;

        //cerr << "m = " << m << endl;
        //cerr << "l = " << l << endl;

        fill_box(m - l);
        swap(discard, pile);
        empty_box();
        //cerr << "piles size = " << pile.size() << endl; 
        //cerr << "discard size = " << discard.size() << endl; 
        //cerr << "discard size + extra = " << discard.size() + k*l << endl; 

        //printCounts();

        if (discard.size() + k*l == m*k) {
            discard = {};
            l = m;
        } else {
            pile = {};
            swap(discard, pile);
            u = m-1;
        }
    }

    return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:68:34: warning: comparison of integer expressions of different signedness: 'std::stack<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   68 |         if (discard.size() + k*l == m*k) {
      |             ~~~~~~~~~~~~~~~~~~~~~^~~~~~

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 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 2 ms 208 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 5 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 4 ms 256 KB Output is correct
17 Correct 4 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 4 ms 208 KB Output is correct
20 Correct 3 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 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 6 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 5 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 4 ms 256 KB Output is correct
17 Correct 4 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 4 ms 208 KB Output is correct
20 Correct 3 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 18 ms 308 KB Output is correct
24 Correct 4 ms 308 KB Output is correct
25 Correct 19 ms 308 KB Output is correct
26 Correct 20 ms 208 KB Output is correct
27 Correct 22 ms 208 KB Output is correct
28 Correct 9 ms 208 KB Output is correct
29 Correct 23 ms 208 KB Output is correct
30 Correct 23 ms 304 KB Output is correct
31 Correct 24 ms 208 KB Output is correct
32 Correct 27 ms 208 KB Output is correct
33 Correct 17 ms 208 KB Output is correct
34 Correct 20 ms 208 KB Output is correct
35 Correct 19 ms 208 KB Output is correct
36 Correct 20 ms 312 KB Output is correct
37 Correct 24 ms 208 KB Output is correct
38 Correct 16 ms 312 KB Output is correct
39 Correct 19 ms 208 KB Output is correct
40 Correct 14 ms 208 KB Output is correct
41 Correct 12 ms 208 KB Output is correct

Subtask #3
74.89 / 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 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 304 KB Output is correct
7 Correct 42 ms 208 KB Output is correct
8 Correct 14 ms 312 KB Output is correct
9 Correct 51 ms 296 KB Output is correct
10 Correct 40 ms 292 KB Output is correct
11 Correct 19 ms 304 KB Output is correct
12 Correct 28 ms 316 KB Output is correct
13 Correct 20 ms 308 KB Output is correct
14 Correct 51 ms 292 KB Output is correct
15 Correct 35 ms 208 KB Output is correct
16 Correct 21 ms 208 KB Output is correct
17 Correct 54 ms 296 KB Output is correct
18 Correct 41 ms 292 KB Output is correct
19 Partially correct 53 ms 208 KB Output is partially correct
20 Correct 42 ms 336 KB Output is correct
21 Correct 59 ms 296 KB Output is correct
22 Correct 48 ms 292 KB Output is correct
23 Correct 22 ms 208 KB Output is correct
24 Correct 40 ms 208 KB Output is correct
25 Correct 28 ms 296 KB Output is correct
26 Correct 9 ms 316 KB Output is correct
27 Correct 47 ms 308 KB Output is correct
28 Correct 43 ms 296 KB Output is correct
29 Partially correct 53 ms 208 KB Output is partially correct
30 Partially correct 45 ms 288 KB Output is partially correct
31 Correct 32 ms 208 KB Output is correct
32 Correct 46 ms 208 KB Output is correct
33 Correct 49 ms 292 KB Output is correct
34 Correct 40 ms 208 KB Output is correct
35 Partially correct 32 ms 312 KB Output is partially correct
36 Partially correct 49 ms 208 KB Output is partially correct
37 Correct 47 ms 292 KB Output is correct
38 Correct 44 ms 296 KB Output is correct
39 Correct 38 ms 296 KB Output is correct
40 Correct 48 ms 208 KB Output is correct
41 Partially correct 51 ms 208 KB Output is partially correct
42 Partially correct 46 ms 296 KB Output is partially correct
43 Correct 11 ms 208 KB Output is correct
44 Correct 21 ms 208 KB Output is correct
45 Correct 42 ms 288 KB Output is correct
46 Correct 27 ms 292 KB Output is correct
47 Correct 18 ms 208 KB Output is correct
48 Correct 25 ms 208 KB Output is correct