oj.uz

Submission #1029141

# Submission time Handle Problem Language Result Execution time Memory
1029141 2024-07-20T12:55:46 Z 42kangaroo Rarest Insects (IOI22_insects) C++17
25 / 100
 42 ms 960 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 < 235) 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 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 420 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 5 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 4 ms 600 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 340 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 5 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 1 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 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 1 ms 344 KB Output is correct
8 Correct 3 ms 420 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 5 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 4 ms 600 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 340 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 5 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
23 Correct 12 ms 600 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 12 ms 588 KB Output is correct
26 Correct 18 ms 452 KB Output is correct
27 Correct 11 ms 600 KB Output is correct
28 Correct 5 ms 344 KB Output is correct
29 Correct 15 ms 600 KB Output is correct
30 Correct 17 ms 444 KB Output is correct
31 Correct 12 ms 444 KB Output is correct
32 Correct 16 ms 600 KB Output is correct
33 Correct 12 ms 444 KB Output is correct
34 Correct 16 ms 344 KB Output is correct
35 Correct 14 ms 452 KB Output is correct
36 Correct 18 ms 448 KB Output is correct
37 Correct 19 ms 600 KB Output is correct
38 Correct 14 ms 452 KB Output is correct
39 Correct 18 ms 444 KB Output is correct
40 Correct 7 ms 452 KB Output is correct
41 Correct 7 ms 600 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 1 ms 348 KB Output is correct
3 Correct 0 ms 340 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 19 ms 452 KB Output is correct
8 Correct 12 ms 344 KB Output is correct
9 Correct 29 ms 452 KB Output is correct
10 Correct 24 ms 452 KB Output is correct
11 Correct 28 ms 692 KB Output is correct
12 Correct 16 ms 600 KB Output is correct
13 Correct 42 ms 592 KB Output is correct
14 Correct 40 ms 960 KB Output is correct
15 Correct 16 ms 444 KB Output is correct
16 Correct 28 ms 608 KB Output is correct
17 Correct 22 ms 948 KB Output is correct
18 Correct 27 ms 448 KB Output is correct
19 Correct 20 ms 464 KB Output is correct
20 Correct 39 ms 696 KB Output is correct
21 Correct 25 ms 456 KB Output is correct
22 Correct 33 ms 600 KB Output is correct
23 Correct 27 ms 460 KB Output is correct
24 Correct 36 ms 444 KB Output is correct
25 Correct 13 ms 448 KB Output is correct
26 Correct 11 ms 456 KB Output is correct
27 Correct 20 ms 456 KB Output is correct
28 Correct 20 ms 344 KB Output is correct
29 Correct 21 ms 344 KB Output is correct
30 Correct 25 ms 456 KB Output is correct
31 Correct 33 ms 704 KB Output is correct
32 Correct 27 ms 456 KB Output is correct
33 Incorrect 37 ms 452 KB Wrong answer.
34 Halted 0 ms 0 KB -