oj.uz

Submission #1078977

# Submission time Handle Problem Language Result Execution time Memory
1078977 2024-08-28T08:54:36 Z Gromp15 Rarest Insects (IOI22_insects) C++17
82.53 / 100
 70 ms 936 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) * 0.75) {
			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;
		vector<int> got;
		while (l <= r) {
			int mid = (l+r)/2;
			for (int x : pot) {
				if (find(all(got), x) != got.end()) { 
					continue;
				}
				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);
				swap(pot, got);
				got.clear();
			}
		}
		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 3 ms 344 KB Output is correct
9 Correct 3 ms 440 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 4 ms 440 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 4 ms 344 KB Output is correct
21 Correct 2 ms 344 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 3 ms 344 KB Output is correct
9 Correct 3 ms 440 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 3 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct
14 Correct 4 ms 344 KB Output is correct
15 Correct 4 ms 440 KB Output is correct
16 Correct 4 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 4 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 5 ms 600 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 15 ms 440 KB Output is correct
26 Correct 26 ms 344 KB Output is correct
27 Correct 10 ms 600 KB Output is correct
28 Correct 5 ms 344 KB Output is correct
29 Correct 15 ms 344 KB Output is correct
30 Correct 14 ms 344 KB Output is correct
31 Correct 18 ms 460 KB Output is correct
32 Correct 14 ms 344 KB Output is correct
33 Correct 32 ms 600 KB Output is correct
34 Correct 33 ms 692 KB Output is correct
35 Correct 30 ms 444 KB Output is correct
36 Correct 30 ms 344 KB Output is correct
37 Correct 18 ms 344 KB Output is correct
38 Correct 15 ms 344 KB Output is correct
39 Correct 13 ms 344 KB Output is correct
40 Correct 10 ms 344 KB Output is correct
41 Correct 7 ms 344 KB Output is correct

Subtask #3
57.53 / 75.0

# 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 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 8 ms 600 KB Output is correct
8 Correct 8 ms 604 KB Output is correct
9 Correct 49 ms 676 KB Output is correct
10 Partially correct 58 ms 436 KB Output is partially correct
11 Correct 26 ms 448 KB Output is correct
12 Correct 20 ms 844 KB Output is correct
13 Partially correct 51 ms 852 KB Output is partially correct
14 Correct 29 ms 344 KB Output is correct
15 Partially correct 31 ms 680 KB Output is partially correct
16 Partially correct 46 ms 436 KB Output is partially correct
17 Partially correct 38 ms 932 KB Output is partially correct
18 Partially correct 50 ms 600 KB Output is partially correct
19 Partially correct 63 ms 612 KB Output is partially correct
20 Partially correct 53 ms 604 KB Output is partially correct
21 Partially correct 40 ms 712 KB Output is partially correct
22 Partially correct 32 ms 344 KB Output is partially correct
23 Correct 21 ms 676 KB Output is correct
24 Correct 22 ms 588 KB Output is correct
25 Correct 15 ms 592 KB Output is correct
26 Correct 13 ms 444 KB Output is correct
27 Correct 29 ms 436 KB Output is correct
28 Correct 32 ms 344 KB Output is correct
29 Partially correct 70 ms 848 KB Output is partially correct
30 Partially correct 61 ms 708 KB Output is partially correct
31 Partially correct 48 ms 936 KB Output is partially correct
32 Partially correct 53 ms 344 KB Output is partially correct
33 Correct 39 ms 592 KB Output is correct
34 Correct 44 ms 696 KB Output is correct
35 Partially correct 36 ms 592 KB Output is partially correct
36 Partially correct 32 ms 344 KB Output is partially correct
37 Partially correct 52 ms 684 KB Output is partially correct
38 Partially correct 57 ms 680 KB Output is partially correct
39 Correct 31 ms 440 KB Output is correct
40 Correct 36 ms 444 KB Output is correct
41 Partially correct 32 ms 680 KB Output is partially correct
42 Partially correct 42 ms 592 KB Output is partially correct
43 Partially correct 8 ms 600 KB Output is partially correct
44 Partially correct 46 ms 464 KB Output is partially correct
45 Correct 30 ms 592 KB Output is correct
46 Correct 12 ms 344 KB Output is correct
47 Correct 19 ms 600 KB Output is correct
48 Correct 21 ms 448 KB Output is correct