oj.uz

Submission #1078963

# Submission time Handle Problem Language Result Execution time Memory
1078963 2024-08-28T08:43:44 Z Gromp15 Rarest Insects (IOI22_insects) C++17
70 / 100
 90 ms 844 KB 
#include <bits/stdc++.h>
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#include "insects.h"
using namespace std;
template<typename T> bool ckmin(T &a, const T &b) { return a > b ? a = b, 1 : 0; }
template<typename T> bool ckmax(T &a, const T &b) { return a < b ? a = b, 1 : 0; }

int min_cardinality(int N) {
	vector<int> idx(N);
	iota(all(idx), 0);
	shuffle(all(idx), mt19937(1498371));
	vector<int> groups{idx[0]};
	move_inside(idx[0]);
	for (int i = 1; i < N; i++) {
		move_inside(idx[i]);
		if (press_button() > 1) move_outside(idx[i]);
		else groups.push_back(idx[i]);
	}
	for (int x : groups) move_outside(x);
	int ans = 1e9;
	auto solve = [&](auto&& s, vector<int> v, vector<int> pot) -> void {
		if (sz(v) == 1) {
			ckmin(ans, sz(pot)); return;
		}
		if (sz(v) * sz(v) < sz(pot)) {
			vector<int> hf(v.begin(), v.begin() + sz(v) / 2), other(v.begin() + sz(v) / 2, v.end());
			for (int x : hf) move_inside(x);
			vector<int> A, B;
			for (int x : pot) {
				if (find(all(hf), x) != hf.end()) A.emplace_back(x);
				else {
					move_inside(x);
					if (press_button() > 1) {
						A.emplace_back(x);
					}
					else {
						B.emplace_back(x);
					}
					move_outside(x);
				}
			}
			for (int x : hf) move_outside(x);
			s(s, hf, A);
			s(s, other, B);
			return;
		}
		int l = 2, r = sz(pot) / sz(v), ans2 = 1;
		while (l <= r) {
			int mid = (l+r)/2;
			vector<int> got;
			for (int x : pot) {
				move_inside(x);
				if (press_button() > mid) move_outside(x);
				else got.push_back(x);
			}
			if (sz(got) == mid * sz(v)) ans2 = mid, l = mid+1;
			else r = mid-1;
			for (int x : got) move_outside(x);
		}
		ckmin(ans, ans2);
	};
	solve(solve, groups, idx);
	return ans;
}

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 0 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 4 ms 440 KB Output is correct
9 Correct 6 ms 440 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 2 ms 440 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 4 ms 440 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 4 ms 440 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 432 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 0 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 4 ms 440 KB Output is correct
9 Correct 6 ms 440 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 2 ms 440 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 4 ms 440 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 4 ms 440 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 4 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 600 KB Output is correct
21 Correct 2 ms 432 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 4 ms 344 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 54 ms 844 KB Output is correct
26 Correct 30 ms 344 KB Output is correct
27 Correct 6 ms 344 KB Output is correct
28 Correct 4 ms 344 KB Output is correct
29 Correct 14 ms 344 KB Output is correct
30 Correct 29 ms 692 KB Output is correct
31 Correct 17 ms 600 KB Output is correct
32 Correct 26 ms 688 KB Output is correct
33 Correct 23 ms 344 KB Output is correct
34 Correct 23 ms 600 KB Output is correct
35 Correct 33 ms 684 KB Output is correct
36 Correct 30 ms 672 KB Output is correct
37 Correct 24 ms 440 KB Output is correct
38 Correct 11 ms 344 KB Output is correct
39 Correct 10 ms 444 KB Output is correct
40 Correct 17 ms 344 KB Output is correct
41 Correct 5 ms 600 KB Output is correct

Subtask #3
45.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 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 1 ms 344 KB Output is correct
7 Correct 7 ms 436 KB Output is correct
8 Correct 7 ms 444 KB Output is correct
9 Partially correct 88 ms 680 KB Output is partially correct
10 Partially correct 75 ms 704 KB Output is partially correct
11 Correct 19 ms 448 KB Output is correct
12 Correct 15 ms 448 KB Output is correct
13 Partially correct 32 ms 460 KB Output is partially correct
14 Partially correct 72 ms 448 KB Output is partially correct
15 Partially correct 36 ms 456 KB Output is partially correct
16 Partially correct 37 ms 464 KB Output is partially correct
17 Partially correct 46 ms 460 KB Output is partially correct
18 Partially correct 43 ms 456 KB Output is partially correct
19 Partially correct 49 ms 476 KB Output is partially correct
20 Partially correct 53 ms 464 KB Output is partially correct
21 Partially correct 69 ms 448 KB Output is partially correct
22 Partially correct 68 ms 448 KB Output is partially correct
23 Partially correct 47 ms 444 KB Output is partially correct
24 Correct 43 ms 448 KB Output is correct
25 Correct 26 ms 456 KB Output is correct
26 Correct 11 ms 600 KB Output is correct
27 Partially correct 74 ms 452 KB Output is partially correct
28 Partially correct 77 ms 692 KB Output is partially correct
29 Partially correct 70 ms 708 KB Output is partially correct
30 Partially correct 70 ms 448 KB Output is partially correct
31 Partially correct 64 ms 684 KB Output is partially correct
32 Partially correct 67 ms 452 KB Output is partially correct
33 Partially correct 53 ms 440 KB Output is partially correct
34 Partially correct 53 ms 448 KB Output is partially correct
35 Partially correct 88 ms 692 KB Output is partially correct
36 Partially correct 69 ms 444 KB Output is partially correct
37 Partially correct 60 ms 448 KB Output is partially correct
38 Partially correct 63 ms 448 KB Output is partially correct
39 Partially correct 41 ms 448 KB Output is partially correct
40 Partially correct 58 ms 464 KB Output is partially correct
41 Partially correct 90 ms 688 KB Output is partially correct
42 Partially correct 80 ms 672 KB Output is partially correct
43 Partially correct 16 ms 440 KB Output is partially correct
44 Partially correct 34 ms 448 KB Output is partially correct
45 Correct 31 ms 600 KB Output is correct
46 Correct 13 ms 448 KB Output is correct
47 Correct 32 ms 448 KB Output is correct
48 Correct 23 ms 456 KB Output is correct