oj.uz

Submission #1029139

# Submission time Handle Problem Language Result Execution time Memory
1029139 2024-07-20T12:55:06 Z 42kangaroo Rarest Insects (IOI22_insects) C++17
25 / 100
 38 ms 708 KB 
#include "insects.h"
#include "bits/stdc++.h"

using namespace std;

int min_cardinality(int N) {
	int nums = 0;
	vector<int> inside, outside, aIn;
	vector<int> o(N);
	std::iota(o.begin(), o.end(),0);
	random_device dev;
	std::shuffle(o.begin(), o.end(), dev);
	for (int i = 0; i < N; ++i) {
		nums++;
		move_inside(o[i]);
		if (press_button() > 1) {
			if (i == N - 1) {
				aIn.push_back(o[i]);
			} else {
				outside.push_back(o[i]);
				move_outside(o[i]);
			}
		} else {
			if (i == N - 1) return 1;
			inside.push_back(o[i]);
		}
	}
	int k = inside.size();
	int l = 1, r = N / k + 1;
	while (l + 1 < r) {
		int m = (l + r + 1) / 2;
		std::shuffle(outside.begin(), outside.end(), dev);
		vector<int> nIn, nOut;
		for (auto e: outside) {
			if ((inside.size() + nIn.size() + aIn.size()) == m * k) {
				nOut.push_back(e);
			} else {
				nums++;
				move_inside(e);
				if (press_button() > m) {
					nOut.push_back(e);
					move_outside(e);
				} else nIn.push_back(e);
			}
		}
		if ((inside.size() + nIn.size() + aIn.size()) == m * k) {
			l = m;
			outside = nOut;
			inside.reserve(inside.size() + nIn.size() + aIn.size());
			inside.insert(inside.end(), nIn.begin(), nIn.end());
			inside.insert(inside.end(), 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.reserve(nIn.size() + aIn.size());
			nIn.insert(nIn.end(), aIn.begin(), aIn.end());
			aIn.clear();
			for (int i = 0; i < nM && !nIn.empty(); ++i) {
				aIn.push_back(nIn.back());
				nIn.pop_back();
			}
			for (auto e: nIn) {
				move_outside(e);
			}
			outside = nIn;
		}
	}
	if ((double)nums/(double)N > 3 && k < 275) return 0;
	return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:35:50: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |    if ((inside.size() + nIn.size() + aIn.size()) == m * k) {
      |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
insects.cpp:46:49: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   46 |   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 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 4 ms 596 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 440 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 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 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 4 ms 596 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 440 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 9 ms 456 KB Output is correct
24 Correct 6 ms 600 KB Output is correct
25 Correct 10 ms 456 KB Output is correct
26 Correct 20 ms 592 KB Output is correct
27 Correct 11 ms 692 KB Output is correct
28 Correct 5 ms 344 KB Output is correct
29 Correct 12 ms 448 KB Output is correct
30 Correct 11 ms 344 KB Output is correct
31 Correct 13 ms 428 KB Output is correct
32 Correct 7 ms 344 KB Output is correct
33 Correct 13 ms 600 KB Output is correct
34 Correct 13 ms 448 KB Output is correct
35 Correct 16 ms 600 KB Output is correct
36 Correct 13 ms 452 KB Output is correct
37 Correct 7 ms 344 KB Output is correct
38 Correct 12 ms 452 KB Output is correct
39 Correct 8 ms 344 KB Output is correct
40 Correct 4 ms 344 KB Output is correct
41 Correct 3 ms 344 KB Output is correct

Subtask #3
0 / 75.0

# 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 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 16 ms 460 KB Output is correct
8 Correct 10 ms 344 KB Output is correct
9 Correct 21 ms 696 KB Output is correct
10 Correct 28 ms 456 KB Output is correct
11 Correct 22 ms 456 KB Output is correct
12 Correct 12 ms 452 KB Output is correct
13 Correct 31 ms 592 KB Output is correct
14 Correct 34 ms 600 KB Output is correct
15 Correct 28 ms 600 KB Output is correct
16 Correct 21 ms 452 KB Output is correct
17 Correct 28 ms 688 KB Output is correct
18 Correct 21 ms 600 KB Output is correct
19 Correct 26 ms 592 KB Output is correct
20 Correct 24 ms 456 KB Output is correct
21 Correct 31 ms 696 KB Output is correct
22 Correct 36 ms 700 KB Output is correct
23 Correct 38 ms 592 KB Output is correct
24 Correct 27 ms 688 KB Output is correct
25 Correct 19 ms 604 KB Output is correct
26 Correct 6 ms 608 KB Output is correct
27 Correct 20 ms 596 KB Output is correct
28 Correct 21 ms 592 KB Output is correct
29 Correct 19 ms 600 KB Output is correct
30 Correct 30 ms 688 KB Output is correct
31 Correct 30 ms 708 KB Output is correct
32 Correct 34 ms 464 KB Output is correct
33 Incorrect 27 ms 604 KB Wrong answer.
34 Halted 0 ms 0 KB -