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Submission #776880

# Submission time Handle Problem Language Result Execution time Memory
776880 2023-07-08T11:06:45 Z SanguineChameleon Rarest Insects (IOI22_insects) C++17
100 / 100
 49 ms 428 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;

mt19937 gen(69420);
int D;

int solve(int K, vector<int> rem, int off) {
	shuffle(rem.begin(), rem.end(), gen);
	if (K == 0) {
		return 0;
	}
	int mid = (K + 1) / 2;
	vector<int> in, out;
	int cnt = 0;
	for (auto x: rem) {
		if (cnt == mid * D) {
			out.push_back(x);
			continue;
		}
		move_inside(x);
		if (press_button() > off + mid) {
			move_outside(x);
			out.push_back(x);
		}
		else {
			cnt++;
			in.push_back(x);
		}
	}
	if (cnt == mid * D) {
		return mid + solve(K - mid, out, off + mid);
	}
	else {
		for (auto x: in) {
			move_outside(x);
		}
		return solve(mid - 1, in, off);
	}
}

int min_cardinality(int N) {
	vector<int> rem;
	for (int i = 0; i < N; i++) {
		move_inside(i);
		if (press_button() == 2) {
			move_outside(i);
			rem.push_back(i);
		}
		else {
			D++;
		}
	}
	return 1 + solve(N / D - 1, rem, 1);
}

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 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 3 ms 304 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 4 ms 300 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 5 ms 304 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 2 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 4 ms 300 KB Output is correct
18 Correct 8 ms 304 KB Output is correct
19 Correct 3 ms 304 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 1 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 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 3 ms 304 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 4 ms 300 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 5 ms 304 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 2 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 4 ms 300 KB Output is correct
18 Correct 8 ms 304 KB Output is correct
19 Correct 3 ms 304 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 20 ms 308 KB Output is correct
24 Correct 8 ms 208 KB Output is correct
25 Correct 26 ms 308 KB Output is correct
26 Correct 24 ms 308 KB Output is correct
27 Correct 23 ms 312 KB Output is correct
28 Correct 5 ms 208 KB Output is correct
29 Correct 19 ms 316 KB Output is correct
30 Correct 22 ms 308 KB Output is correct
31 Correct 16 ms 316 KB Output is correct
32 Correct 9 ms 308 KB Output is correct
33 Correct 21 ms 312 KB Output is correct
34 Correct 19 ms 308 KB Output is correct
35 Correct 21 ms 208 KB Output is correct
36 Correct 24 ms 312 KB Output is correct
37 Correct 22 ms 308 KB Output is correct
38 Correct 13 ms 208 KB Output is correct
39 Correct 18 ms 308 KB Output is correct
40 Correct 16 ms 208 KB Output is correct
41 Correct 7 ms 208 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 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 34 ms 312 KB Output is correct
8 Correct 11 ms 208 KB Output is correct
9 Correct 33 ms 316 KB Output is correct
10 Correct 32 ms 320 KB Output is correct
11 Correct 48 ms 312 KB Output is correct
12 Correct 21 ms 308 KB Output is correct
13 Correct 40 ms 312 KB Output is correct
14 Correct 21 ms 312 KB Output is correct
15 Correct 18 ms 320 KB Output is correct
16 Correct 32 ms 320 KB Output is correct
17 Correct 17 ms 308 KB Output is correct
18 Correct 18 ms 308 KB Output is correct
19 Correct 31 ms 320 KB Output is correct
20 Correct 48 ms 308 KB Output is correct
21 Correct 37 ms 324 KB Output is correct
22 Correct 33 ms 336 KB Output is correct
23 Correct 32 ms 428 KB Output is correct
24 Correct 20 ms 300 KB Output is correct
25 Correct 27 ms 304 KB Output is correct
26 Correct 9 ms 304 KB Output is correct
27 Correct 41 ms 316 KB Output is correct
28 Correct 48 ms 316 KB Output is correct
29 Correct 34 ms 316 KB Output is correct
30 Correct 45 ms 304 KB Output is correct
31 Correct 49 ms 308 KB Output is correct
32 Correct 48 ms 304 KB Output is correct
33 Correct 44 ms 208 KB Output is correct
34 Correct 45 ms 416 KB Output is correct
35 Correct 36 ms 308 KB Output is correct
36 Correct 40 ms 320 KB Output is correct
37 Correct 45 ms 316 KB Output is correct
38 Correct 41 ms 308 KB Output is correct
39 Correct 42 ms 308 KB Output is correct
40 Correct 37 ms 428 KB Output is correct
41 Correct 31 ms 208 KB Output is correct
42 Correct 41 ms 316 KB Output is correct
43 Correct 8 ms 208 KB Output is correct
44 Correct 34 ms 312 KB Output is correct
45 Correct 32 ms 300 KB Output is correct
46 Correct 25 ms 292 KB Output is correct
47 Correct 26 ms 208 KB Output is correct
48 Correct 20 ms 304 KB Output is correct