oj.uz

Submission #1029125

# Submission time Handle Problem Language Result Execution time Memory
1029125 2024-07-20T12:50:46 Z 42kangaroo Rarest Insects (IOI22_insects) C++17
99.82 / 100
 30 ms 716 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;
		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) return 0;
	return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:34:50: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   34 |    if ((inside.size() + nIn.size() + aIn.size()) == m * k) {
      |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
insects.cpp:45:49: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   45 |   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 2 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 2 ms 436 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 3 ms 440 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 3 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 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 1 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 344 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 2 ms 436 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 3 ms 440 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 3 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 1 ms 344 KB Output is correct
23 Correct 10 ms 344 KB Output is correct
24 Correct 7 ms 344 KB Output is correct
25 Correct 11 ms 460 KB Output is correct
26 Correct 14 ms 704 KB Output is correct
27 Correct 9 ms 344 KB Output is correct
28 Correct 4 ms 344 KB Output is correct
29 Correct 12 ms 452 KB Output is correct
30 Correct 21 ms 344 KB Output is correct
31 Correct 11 ms 344 KB Output is correct
32 Correct 13 ms 428 KB Output is correct
33 Correct 17 ms 592 KB Output is correct
34 Correct 7 ms 452 KB Output is correct
35 Correct 12 ms 440 KB Output is correct
36 Correct 14 ms 344 KB Output is correct
37 Correct 14 ms 600 KB Output is correct
38 Correct 16 ms 344 KB Output is correct
39 Correct 13 ms 340 KB Output is correct
40 Correct 10 ms 600 KB Output is correct
41 Correct 6 ms 344 KB Output is correct

Subtask #3
74.82 / 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 23 ms 600 KB Output is correct
8 Correct 10 ms 344 KB Output is correct
9 Correct 26 ms 452 KB Output is correct
10 Correct 25 ms 600 KB Output is correct
11 Correct 30 ms 600 KB Output is correct
12 Correct 6 ms 600 KB Output is correct
13 Correct 22 ms 604 KB Output is correct
14 Correct 26 ms 344 KB Output is correct
15 Correct 13 ms 344 KB Output is correct
16 Correct 28 ms 704 KB Output is correct
17 Correct 18 ms 716 KB Output is correct
18 Correct 18 ms 592 KB Output is correct
19 Correct 25 ms 464 KB Output is correct
20 Correct 25 ms 700 KB Output is correct
21 Correct 21 ms 344 KB Output is correct
22 Correct 27 ms 344 KB Output is correct
23 Correct 28 ms 600 KB Output is correct
24 Correct 25 ms 596 KB Output is correct
25 Correct 15 ms 344 KB Output is correct
26 Correct 9 ms 344 KB Output is correct
27 Correct 19 ms 460 KB Output is correct
28 Correct 28 ms 344 KB Output is correct
29 Correct 22 ms 592 KB Output is correct
30 Correct 29 ms 344 KB Output is correct
31 Correct 25 ms 592 KB Output is correct
32 Correct 26 ms 344 KB Output is correct
33 Partially correct 26 ms 340 KB Output is partially correct
34 Partially correct 22 ms 344 KB Output is partially correct
35 Correct 17 ms 344 KB Output is correct
36 Correct 21 ms 456 KB Output is correct
37 Correct 25 ms 592 KB Output is correct
38 Correct 23 ms 444 KB Output is correct
39 Correct 20 ms 456 KB Output is correct
40 Correct 22 ms 600 KB Output is correct
41 Correct 22 ms 444 KB Output is correct
42 Correct 16 ms 444 KB Output is correct
43 Correct 6 ms 600 KB Output is correct
44 Correct 26 ms 448 KB Output is correct
45 Correct 18 ms 600 KB Output is correct
46 Correct 6 ms 344 KB Output is correct
47 Correct 12 ms 344 KB Output is correct
48 Correct 10 ms 448 KB Output is correct