oj.uz

Submission #1029151

# Submission time Handle Problem Language Result Execution time Memory
1029151 2024-07-20T13:00:16 Z 42kangaroo Rarest Insects (IOI22_insects) C++17
99.85 / 100
 43 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();
			int nM = (l + r + 1) / 2 - l;
			for (int i = 0; i < nM && !outside.empty(); ++i) {
				aIn.push_back(outside.back());
				move_inside(outside.back());
				outside.pop_back();
			}
		} 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 &&) 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 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 440 KB Output is correct
8 Correct 3 ms 344 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 3 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 440 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 2 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 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 440 KB Output is correct
8 Correct 3 ms 344 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 3 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 3 ms 440 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 2 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 9 ms 432 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 7 ms 344 KB Output is correct
26 Correct 8 ms 452 KB Output is correct
27 Correct 12 ms 448 KB Output is correct
28 Correct 7 ms 344 KB Output is correct
29 Correct 14 ms 452 KB Output is correct
30 Correct 12 ms 344 KB Output is correct
31 Correct 15 ms 592 KB Output is correct
32 Correct 10 ms 600 KB Output is correct
33 Correct 11 ms 344 KB Output is correct
34 Correct 12 ms 344 KB Output is correct
35 Correct 11 ms 452 KB Output is correct
36 Correct 7 ms 344 KB Output is correct
37 Correct 19 ms 448 KB Output is correct
38 Correct 12 ms 444 KB Output is correct
39 Correct 13 ms 444 KB Output is correct
40 Correct 6 ms 600 KB Output is correct
41 Correct 6 ms 448 KB Output is correct

Subtask #3
74.85 / 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 19 ms 708 KB Output is correct
8 Correct 10 ms 600 KB Output is correct
9 Correct 19 ms 452 KB Output is correct
10 Correct 37 ms 600 KB Output is correct
11 Correct 32 ms 600 KB Output is correct
12 Correct 13 ms 344 KB Output is correct
13 Correct 35 ms 440 KB Output is correct
14 Correct 39 ms 676 KB Output is correct
15 Correct 19 ms 344 KB Output is correct
16 Correct 26 ms 692 KB Output is correct
17 Correct 25 ms 592 KB Output is correct
18 Correct 22 ms 444 KB Output is correct
19 Correct 19 ms 588 KB Output is correct
20 Correct 27 ms 444 KB Output is correct
21 Correct 39 ms 460 KB Output is correct
22 Correct 28 ms 440 KB Output is correct
23 Correct 32 ms 452 KB Output is correct
24 Correct 22 ms 592 KB Output is correct
25 Correct 13 ms 592 KB Output is correct
26 Correct 11 ms 344 KB Output is correct
27 Correct 23 ms 344 KB Output is correct
28 Correct 36 ms 600 KB Output is correct
29 Correct 33 ms 680 KB Output is correct
30 Correct 26 ms 600 KB Output is correct
31 Correct 25 ms 600 KB Output is correct
32 Correct 17 ms 444 KB Output is correct
33 Partially correct 43 ms 592 KB Output is partially correct
34 Partially correct 26 ms 460 KB Output is partially correct
35 Correct 26 ms 592 KB Output is correct
36 Correct 33 ms 604 KB Output is correct
37 Correct 42 ms 600 KB Output is correct
38 Correct 22 ms 600 KB Output is correct
39 Correct 22 ms 452 KB Output is correct
40 Correct 31 ms 452 KB Output is correct
41 Correct 25 ms 452 KB Output is correct
42 Correct 42 ms 448 KB Output is correct
43 Correct 7 ms 344 KB Output is correct
44 Correct 21 ms 460 KB Output is correct
45 Correct 23 ms 452 KB Output is correct
46 Correct 15 ms 452 KB Output is correct
47 Correct 11 ms 448 KB Output is correct
48 Correct 10 ms 444 KB Output is correct