oj.uz

Submission #1029135

# Submission time Handle Problem Language Result Execution time Memory
1029135 2024-07-20T12:53:55 Z 42kangaroo Rarest Insects (IOI22_insects) C++17
25 / 100
 39 ms 712 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 < 500) 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 1 ms 596 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 3 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 600 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 2 ms 440 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 1 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 1 ms 596 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 3 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 600 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 2 ms 440 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 12 ms 704 KB Output is correct
26 Correct 12 ms 344 KB Output is correct
27 Correct 10 ms 344 KB Output is correct
28 Correct 6 ms 344 KB Output is correct
29 Correct 11 ms 452 KB Output is correct
30 Correct 13 ms 444 KB Output is correct
31 Correct 14 ms 592 KB Output is correct
32 Correct 17 ms 344 KB Output is correct
33 Correct 11 ms 344 KB Output is correct
34 Correct 10 ms 452 KB Output is correct
35 Correct 18 ms 340 KB Output is correct
36 Correct 12 ms 600 KB Output is correct
37 Correct 15 ms 452 KB Output is correct
38 Correct 12 ms 344 KB Output is correct
39 Correct 11 ms 344 KB Output is correct
40 Correct 5 ms 440 KB Output is correct
41 Correct 5 ms 444 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 0 ms 344 KB Output is correct
7 Correct 17 ms 460 KB Output is correct
8 Correct 11 ms 344 KB Output is correct
9 Correct 15 ms 592 KB Output is correct
10 Correct 24 ms 460 KB Output is correct
11 Correct 15 ms 344 KB Output is correct
12 Correct 18 ms 600 KB Output is correct
13 Correct 23 ms 688 KB Output is correct
14 Correct 28 ms 608 KB Output is correct
15 Correct 16 ms 712 KB Output is correct
16 Correct 24 ms 708 KB Output is correct
17 Correct 30 ms 344 KB Output is correct
18 Correct 17 ms 600 KB Output is correct
19 Correct 31 ms 600 KB Output is correct
20 Correct 18 ms 600 KB Output is correct
21 Correct 30 ms 592 KB Output is correct
22 Correct 33 ms 440 KB Output is correct
23 Correct 35 ms 600 KB Output is correct
24 Correct 18 ms 708 KB Output is correct
25 Correct 14 ms 600 KB Output is correct
26 Correct 12 ms 448 KB Output is correct
27 Correct 35 ms 344 KB Output is correct
28 Correct 39 ms 440 KB Output is correct
29 Correct 17 ms 344 KB Output is correct
30 Correct 21 ms 452 KB Output is correct
31 Correct 20 ms 344 KB Output is correct
32 Correct 24 ms 440 KB Output is correct
33 Incorrect 36 ms 708 KB Wrong answer.
34 Halted 0 ms 0 KB -