oj.uz

Submission #776322

# Submission time Handle Problem Language Result Execution time Memory
776322 2023-07-07T16:22:56 Z GusterGoose27 Rarest Insects (IOI22_insects) C++17
100 / 100
 58 ms 336 KB 
#include "insects.h"

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 1e5;

int min_cardinality(int n) {
    vector<int> perm(n);
    iota(perm.begin(), perm.end(), 0);
    mt19937 gen(chrono::steady_clock::now().time_since_epoch().count());
    for (int i = 1; i < n; i++) swap(perm[i], perm[gen()%(i+1)]);
	vector<int> reps;
	vector<int> extra;
	move_inside(perm[0]);
	int num_inside = 1;
	for (int i = 1; i < n; i++) {
		move_inside(perm[i]);
		if (press_button() > 1) {
			move_outside(perm[i]);
			extra.push_back(perm[i]);
		}
		else {
			num_inside++;
		}
	}
	int k = num_inside;
	if (k == 1) return n;
	while (extra.size() >= k) {
		int s = (extra.size()/2+k-1)/k;
		int base = num_inside/k;
		vector<int> l, r;
		for (int i = 0; i < s; i++) {
			move_inside(extra[i]);
			l.push_back(extra[i]);
		}
		for (int i = s; i < extra.size(); i++) {
			move_inside(extra[i]);
			if (press_button() > s+base) {
				move_outside(extra[i]);
				r.push_back(extra[i]);
			}
			else {
				l.push_back(extra[i]);
			}
		}
		if (l.size() == s*k) {
			extra = r;
			num_inside += l.size();
		}
		else {
			extra = l;
			for (int v: l) move_outside(v);
		}
	}
	return num_inside/k;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:30:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |  while (extra.size() >= k) {
      |         ~~~~~~~~~~~~~^~~~
insects.cpp:38:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |   for (int i = s; i < extra.size(); i++) {
      |                   ~~^~~~~~~~~~~~~~
insects.cpp:48:16: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   48 |   if (l.size() == s*k) {
      |       ~~~~~~~~~^~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 3 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 4 ms 304 KB Output is correct
13 Correct 5 ms 300 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 3 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 3 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 4 ms 304 KB Output is correct
13 Correct 5 ms 300 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 3 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 208 KB Output is correct
23 Correct 9 ms 308 KB Output is correct
24 Correct 9 ms 208 KB Output is correct
25 Correct 13 ms 308 KB Output is correct
26 Correct 17 ms 308 KB Output is correct
27 Correct 9 ms 308 KB Output is correct
28 Correct 7 ms 208 KB Output is correct
29 Correct 17 ms 316 KB Output is correct
30 Correct 19 ms 308 KB Output is correct
31 Correct 21 ms 316 KB Output is correct
32 Correct 22 ms 308 KB Output is correct
33 Correct 19 ms 208 KB Output is correct
34 Correct 22 ms 304 KB Output is correct
35 Correct 24 ms 312 KB Output is correct
36 Correct 24 ms 208 KB Output is correct
37 Correct 23 ms 208 KB Output is correct
38 Correct 15 ms 208 KB Output is correct
39 Correct 23 ms 308 KB Output is correct
40 Correct 11 ms 308 KB Output is correct
41 Correct 4 ms 304 KB Output is correct

Subtask #3
75.0 / 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 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 14 ms 208 KB Output is correct
8 Correct 15 ms 208 KB Output is correct
9 Correct 34 ms 312 KB Output is correct
10 Correct 35 ms 308 KB Output is correct
11 Correct 35 ms 316 KB Output is correct
12 Correct 24 ms 208 KB Output is correct
13 Correct 42 ms 304 KB Output is correct
14 Correct 51 ms 312 KB Output is correct
15 Correct 37 ms 336 KB Output is correct
16 Correct 50 ms 208 KB Output is correct
17 Correct 32 ms 208 KB Output is correct
18 Correct 39 ms 316 KB Output is correct
19 Correct 42 ms 316 KB Output is correct
20 Correct 42 ms 308 KB Output is correct
21 Correct 58 ms 316 KB Output is correct
22 Correct 34 ms 320 KB Output is correct
23 Correct 26 ms 296 KB Output is correct
24 Correct 33 ms 304 KB Output is correct
25 Correct 25 ms 208 KB Output is correct
26 Correct 18 ms 308 KB Output is correct
27 Correct 45 ms 316 KB Output is correct
28 Correct 48 ms 304 KB Output is correct
29 Correct 37 ms 304 KB Output is correct
30 Correct 40 ms 316 KB Output is correct
31 Correct 20 ms 208 KB Output is correct
32 Correct 46 ms 308 KB Output is correct
33 Correct 44 ms 304 KB Output is correct
34 Correct 49 ms 312 KB Output is correct
35 Correct 21 ms 308 KB Output is correct
36 Correct 35 ms 308 KB Output is correct
37 Correct 51 ms 316 KB Output is correct
38 Correct 40 ms 316 KB Output is correct
39 Correct 36 ms 312 KB Output is correct
40 Correct 40 ms 208 KB Output is correct
41 Correct 22 ms 312 KB Output is correct
42 Correct 47 ms 312 KB Output is correct
43 Correct 5 ms 208 KB Output is correct
44 Correct 26 ms 304 KB Output is correct
45 Correct 41 ms 296 KB Output is correct
46 Correct 18 ms 312 KB Output is correct
47 Correct 20 ms 304 KB Output is correct
48 Correct 20 ms 312 KB Output is correct