oj.uz

Submission #1029127

# Submission time Handle Problem Language Result Execution time Memory
1029127 2024-07-20T12:51:15 Z 42kangaroo Rarest Insects (IOI22_insects) C++17
99.82 / 100
 37 ms 952 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 1 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 1 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 2 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 3 ms 436 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 2 ms 436 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 692 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 1 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 1 ms 344 KB Output is correct
6 Correct 2 ms 344 KB Output is correct
7 Correct 2 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 3 ms 436 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 2 ms 436 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 692 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 10 ms 452 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 15 ms 344 KB Output is correct
26 Correct 13 ms 608 KB Output is correct
27 Correct 11 ms 440 KB Output is correct
28 Correct 5 ms 344 KB Output is correct
29 Correct 12 ms 440 KB Output is correct
30 Correct 16 ms 344 KB Output is correct
31 Correct 11 ms 344 KB Output is correct
32 Correct 13 ms 452 KB Output is correct
33 Correct 9 ms 344 KB Output is correct
34 Correct 7 ms 344 KB Output is correct
35 Correct 12 ms 600 KB Output is correct
36 Correct 12 ms 344 KB Output is correct
37 Correct 12 ms 448 KB Output is correct
38 Correct 18 ms 344 KB Output is correct
39 Correct 12 ms 344 KB Output is correct
40 Correct 8 ms 600 KB Output is correct
41 Correct 5 ms 444 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 416 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 11 ms 464 KB Output is correct
8 Correct 12 ms 448 KB Output is correct
9 Correct 28 ms 692 KB Output is correct
10 Correct 28 ms 600 KB Output is correct
11 Correct 21 ms 600 KB Output is correct
12 Correct 14 ms 440 KB Output is correct
13 Correct 22 ms 456 KB Output is correct
14 Correct 30 ms 692 KB Output is correct
15 Correct 20 ms 456 KB Output is correct
16 Correct 18 ms 588 KB Output is correct
17 Correct 32 ms 444 KB Output is correct
18 Correct 37 ms 456 KB Output is correct
19 Correct 23 ms 436 KB Output is correct
20 Correct 19 ms 344 KB Output is correct
21 Correct 23 ms 344 KB Output is correct
22 Correct 19 ms 592 KB Output is correct
23 Correct 25 ms 344 KB Output is correct
24 Correct 17 ms 596 KB Output is correct
25 Correct 13 ms 344 KB Output is correct
26 Correct 14 ms 704 KB Output is correct
27 Correct 25 ms 708 KB Output is correct
28 Correct 32 ms 460 KB Output is correct
29 Correct 21 ms 456 KB Output is correct
30 Correct 20 ms 600 KB Output is correct
31 Correct 29 ms 344 KB Output is correct
32 Correct 23 ms 600 KB Output is correct
33 Partially correct 35 ms 952 KB Output is partially correct
34 Partially correct 33 ms 592 KB Output is partially correct
35 Correct 19 ms 704 KB Output is correct
36 Correct 20 ms 604 KB Output is correct
37 Correct 31 ms 600 KB Output is correct
38 Correct 26 ms 600 KB Output is correct
39 Correct 18 ms 596 KB Output is correct
40 Correct 29 ms 448 KB Output is correct
41 Correct 25 ms 344 KB Output is correct
42 Correct 23 ms 712 KB Output is correct
43 Correct 4 ms 448 KB Output is correct
44 Correct 15 ms 464 KB Output is correct
45 Correct 24 ms 456 KB Output is correct
46 Correct 9 ms 456 KB Output is correct
47 Correct 13 ms 448 KB Output is correct
48 Correct 11 ms 452 KB Output is correct