oj.uz

Submission #1029093

# Submission time Handle Problem Language Result Execution time Memory
1029093 2024-07-20T12:19:42 Z 42kangaroo Rarest Insects (IOI22_insects) C++17
25 / 100
 40 ms 1364 KB 
#include "insects.h"
#include "bits/stdc++.h"

using namespace std;

int min_cardinality(int N) {
	int nums = 0;
	set<int> inside, outside, aIn;
	for (int i = 0; i < N; ++i) {
		nums++;
		move_inside(i);
		if (press_button() > 1) {
			if (i == N - 1) {
				aIn.insert(i);
			} else {
				outside.insert(i);
				move_outside(i);
			}
		} else {
			inside.insert(i);
		}
	}
	int k = inside.size();
	int l = 1, r = N / k + 1;
	while (l + 1 < r) {
		int m = (l + r + 1) / 2;
		set<int> nIn, nOut;
		for (auto e: outside) {
			if ((inside.size() + nIn.size() + aIn.size()) == m * k) {
				nOut.insert(e);
			} else {
				nums++;
				move_inside(e);
				if (press_button() > m) {
					nOut.insert(e);
					move_outside(e);
				} else nIn.insert(e);
			}
		}
		if ((inside.size() + nIn.size() + aIn.size()) == m * k) {
			l = m;
			outside = nOut;
			inside.insert(nIn.begin(), nIn.end());
			inside.insert(aIn.begin(), aIn.end());
			aIn.clear();
		} else {
			r = min(m, (int)(inside.size() + nIn.size() + aIn.size())/k + 1);
			int nM = (l + r + 1) / 2 - l;
			nIn.insert(aIn.begin(), aIn.end());
			aIn.clear();
			for (int i = 0; i < nM && !nIn.empty(); ++i) {
				aIn.insert(*nIn.begin());
				nIn.erase(nIn.begin());
			}
			for (auto e: nIn) {
				move_outside(e);
			}
			outside = nIn;
		}
	}
	if ((double)nums/(double)N > 3) exit(k);
	return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:29:50: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   29 |    if ((inside.size() + nIn.size() + aIn.size()) == m * k) {
      |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
insects.cpp:40:49: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   40 |   if ((inside.size() + nIn.size() + aIn.size()) == m * k) {
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~

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 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 3 ms 600 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 600 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 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 0 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 3 ms 600 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 600 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 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 10 ms 480 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 16 ms 724 KB Output is correct
26 Correct 15 ms 500 KB Output is correct
27 Correct 13 ms 456 KB Output is correct
28 Correct 6 ms 344 KB Output is correct
29 Correct 14 ms 712 KB Output is correct
30 Correct 11 ms 616 KB Output is correct
31 Correct 13 ms 740 KB Output is correct
32 Correct 13 ms 496 KB Output is correct
33 Correct 10 ms 488 KB Output is correct
34 Correct 17 ms 476 KB Output is correct
35 Correct 8 ms 612 KB Output is correct
36 Correct 13 ms 720 KB Output is correct
37 Correct 10 ms 600 KB Output is correct
38 Correct 12 ms 592 KB Output is correct
39 Correct 21 ms 444 KB Output is correct
40 Correct 10 ms 344 KB Output is correct
41 Correct 7 ms 440 KB Output is correct

Subtask #3
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 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 19 ms 784 KB Output is correct
8 Correct 8 ms 484 KB Output is correct
9 Correct 20 ms 552 KB Output is correct
10 Correct 40 ms 960 KB Output is correct
11 Correct 29 ms 756 KB Output is correct
12 Correct 10 ms 800 KB Output is correct
13 Correct 25 ms 808 KB Output is correct
14 Correct 33 ms 512 KB Output is correct
15 Correct 18 ms 600 KB Output is correct
16 Correct 26 ms 576 KB Output is correct
17 Correct 29 ms 692 KB Output is correct
18 Correct 27 ms 592 KB Output is correct
19 Correct 24 ms 768 KB Output is correct
20 Correct 27 ms 560 KB Output is correct
21 Correct 30 ms 476 KB Output is correct
22 Correct 33 ms 1364 KB Output is correct
23 Correct 26 ms 540 KB Output is correct
24 Correct 27 ms 600 KB Output is correct
25 Correct 13 ms 496 KB Output is correct
26 Correct 10 ms 344 KB Output is correct
27 Correct 27 ms 548 KB Output is correct
28 Correct 25 ms 600 KB Output is correct
29 Correct 38 ms 588 KB Output is correct
30 Correct 31 ms 600 KB Output is correct
31 Correct 30 ms 580 KB Output is correct
32 Correct 33 ms 704 KB Output is correct
33 Runtime error 32 ms 860 KB Execution failed because the return code was nonzero
34 Halted 0 ms 0 KB -