oj.uz

Submission #631044

# Submission time Handle Problem Language Result Execution time Memory
631044 2022-08-17T15:22:44 Z gromperen Rarest Insects (IOI22_insects) C++17
99.89 / 100
 64 ms 460 KB 
#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

int min_cardinality(int N) {
	vector<int> insects;
	int cnt_uniq = 0;

	for (int i = 0; i < N; ++i) {
		move_inside(i);
		if (press_button() == 1) cnt_uniq++;
		else {
			move_outside(i);
			insects.push_back(i);
		}
	}

	int ans = 1;
	int low = 2, high = N/cnt_uniq;
	while(low<=high) {
		int mid = (low+high)/2;
		vector<int> in, out;
		for (int i : insects) {
			move_inside(i);
			if (press_button() > mid) {
				move_outside(i);
				out.push_back(i);
			} else {
				in.push_back(i);
			}
		}
		if (in.size() == cnt_uniq * (mid-ans)) {
			low = mid+1;
			ans = mid;
			insects = out;
		} else {
			high = mid-1;
			insects = in;
			for (auto i : in) move_outside(i);
		}
	}

	return ans;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:33:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   33 |   if (in.size() == cnt_uniq * (mid-ans)) {
      |       ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 5 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 6 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 7 ms 208 KB Output is correct
17 Correct 6 ms 304 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 5 ms 296 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 4 ms 208 KB Output is correct
22 Correct 3 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 5 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 6 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 7 ms 208 KB Output is correct
17 Correct 6 ms 304 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 5 ms 296 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 4 ms 208 KB Output is correct
22 Correct 3 ms 208 KB Output is correct
23 Correct 24 ms 292 KB Output is correct
24 Correct 8 ms 208 KB Output is correct
25 Correct 27 ms 288 KB Output is correct
26 Correct 28 ms 300 KB Output is correct
27 Correct 21 ms 304 KB Output is correct
28 Correct 7 ms 208 KB Output is correct
29 Correct 27 ms 284 KB Output is correct
30 Correct 26 ms 208 KB Output is correct
31 Correct 14 ms 336 KB Output is correct
32 Correct 14 ms 300 KB Output is correct
33 Correct 22 ms 304 KB Output is correct
34 Correct 29 ms 208 KB Output is correct
35 Correct 22 ms 304 KB Output is correct
36 Correct 31 ms 300 KB Output is correct
37 Correct 26 ms 208 KB Output is correct
38 Correct 21 ms 304 KB Output is correct
39 Correct 16 ms 300 KB Output is correct
40 Correct 11 ms 300 KB Output is correct
41 Correct 8 ms 300 KB Output is correct

Subtask #3
74.89 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 52 ms 208 KB Output is correct
8 Correct 15 ms 208 KB Output is correct
9 Correct 47 ms 312 KB Output is correct
10 Correct 46 ms 292 KB Output is correct
11 Correct 48 ms 208 KB Output is correct
12 Correct 24 ms 208 KB Output is correct
13 Correct 42 ms 308 KB Output is correct
14 Correct 47 ms 208 KB Output is correct
15 Correct 48 ms 304 KB Output is correct
16 Correct 59 ms 208 KB Output is correct
17 Correct 56 ms 460 KB Output is correct
18 Correct 31 ms 296 KB Output is correct
19 Partially correct 58 ms 300 KB Output is partially correct
20 Correct 55 ms 208 KB Output is correct
21 Correct 52 ms 208 KB Output is correct
22 Correct 49 ms 300 KB Output is correct
23 Correct 41 ms 208 KB Output is correct
24 Correct 26 ms 308 KB Output is correct
25 Correct 26 ms 296 KB Output is correct
26 Correct 18 ms 420 KB Output is correct
27 Correct 27 ms 208 KB Output is correct
28 Correct 45 ms 304 KB Output is correct
29 Partially correct 62 ms 296 KB Output is partially correct
30 Partially correct 64 ms 300 KB Output is partially correct
31 Correct 53 ms 328 KB Output is correct
32 Correct 40 ms 208 KB Output is correct
33 Correct 38 ms 292 KB Output is correct
34 Correct 42 ms 296 KB Output is correct
35 Partially correct 49 ms 296 KB Output is partially correct
36 Partially correct 47 ms 208 KB Output is partially correct
37 Correct 27 ms 300 KB Output is correct
38 Correct 43 ms 308 KB Output is correct
39 Correct 40 ms 292 KB Output is correct
40 Correct 23 ms 300 KB Output is correct
41 Partially correct 55 ms 300 KB Output is partially correct
42 Partially correct 62 ms 308 KB Output is partially correct
43 Correct 6 ms 208 KB Output is correct
44 Correct 36 ms 304 KB Output is correct
45 Correct 57 ms 304 KB Output is correct
46 Correct 24 ms 288 KB Output is correct
47 Correct 33 ms 288 KB Output is correct
48 Correct 22 ms 288 KB Output is correct