Submission #837153

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
837153	2023-08-25T03:29:24 Z	biank	Rarest Insects (IOI22_insects)	C++17	99.83 / 100	50 ms	480 KB

insects

#include <bits/stdc++.h>

using namespace std;

#define ALL(x) x.begin(), x.end()
#define DBGY(x) cerr << #x << ": " << x << ", ";
#define DBG(x) cerr << #x << ": " << x << endl;

void move_inside(int i);
void move_outside(int i);
int press_button();

stack <int> in;
set <int> s;
int T;

bool check(int m, int &K) {
	int old_k = K;
	for (int i:s) {
		move_inside(i);
		if (press_button() <= m) {
			in.push(i);
			if (++K == m*T) {
				while (!in.empty()) {
					s.erase(in.top());
					in.pop();
				}
				return true;
			}
		} else {
			move_outside(i);
		}
	}
	s.clear();
	while (!in.empty()) {
		s.insert(in.top());
		move_outside(in.top());
		in.pop();
	}
	K = old_k;
	return false;
}

int min_cardinality(int N) {
	move_inside(0);
	in.push(0);
	s.insert(0);
	T = 1;
	for (int i=1; i<N; i++) {
		s.insert(i);
		move_inside(i);
		if (press_button() == 1) {
			in.push(i);
			T++;
		} else {
			move_outside(i);
		}
	}
	while (!in.empty()) {
		move_outside(in.top());
		in.pop();
	}
	
	int K = 0, l = 0, r = N/T+1;
	
	while (l+1 < r) {
		assert(in.empty());
		int m = (l+r)/2;
		if (check(m, K)) {
			l = m;
		} else {
			r = m;
		}
	}
	
	return l;
}

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	4 ms	208 KB	Output is correct
7	Correct	4 ms	208 KB	Output is correct
8	Correct	3 ms	208 KB	Output is correct
9	Correct	6 ms	296 KB	Output is correct
10	Correct	3 ms	208 KB	Output is correct
11	Correct	4 ms	208 KB	Output is correct
12	Correct	5 ms	208 KB	Output is correct
13	Correct	6 ms	208 KB	Output is correct
14	Correct	5 ms	208 KB	Output is correct
15	Correct	5 ms	208 KB	Output is correct
16	Correct	3 ms	208 KB	Output is correct
17	Correct	5 ms	208 KB	Output is correct
18	Correct	4 ms	304 KB	Output is correct
19	Correct	5 ms	208 KB	Output is correct
20	Correct	4 ms	208 KB	Output is correct
21	Correct	5 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	4 ms	208 KB	Output is correct
7	Correct	4 ms	208 KB	Output is correct
8	Correct	3 ms	208 KB	Output is correct
9	Correct	6 ms	296 KB	Output is correct
10	Correct	3 ms	208 KB	Output is correct
11	Correct	4 ms	208 KB	Output is correct
12	Correct	5 ms	208 KB	Output is correct
13	Correct	6 ms	208 KB	Output is correct
14	Correct	5 ms	208 KB	Output is correct
15	Correct	5 ms	208 KB	Output is correct
16	Correct	3 ms	208 KB	Output is correct
17	Correct	5 ms	208 KB	Output is correct
18	Correct	4 ms	304 KB	Output is correct
19	Correct	5 ms	208 KB	Output is correct
20	Correct	4 ms	208 KB	Output is correct
21	Correct	5 ms	208 KB	Output is correct
22	Correct	3 ms	208 KB	Output is correct
23	Correct	9 ms	336 KB	Output is correct
24	Correct	14 ms	336 KB	Output is correct
25	Correct	20 ms	336 KB	Output is correct
26	Correct	20 ms	316 KB	Output is correct
27	Correct	20 ms	312 KB	Output is correct
28	Correct	17 ms	316 KB	Output is correct
29	Correct	20 ms	324 KB	Output is correct
30	Correct	19 ms	340 KB	Output is correct
31	Correct	18 ms	336 KB	Output is correct
32	Correct	15 ms	324 KB	Output is correct
33	Correct	24 ms	324 KB	Output is correct
34	Correct	15 ms	336 KB	Output is correct
35	Correct	21 ms	328 KB	Output is correct
36	Correct	24 ms	320 KB	Output is correct
37	Correct	16 ms	320 KB	Output is correct
38	Correct	22 ms	336 KB	Output is correct
39	Correct	23 ms	332 KB	Output is correct
40	Correct	19 ms	300 KB	Output is correct
41	Correct	13 ms	336 KB	Output is correct

Subtask #3
74.83 / 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	0 ms	208 KB	Output is correct
7	Correct	22 ms	328 KB	Output is correct
8	Correct	30 ms	388 KB	Output is correct
9	Correct	21 ms	344 KB	Output is correct
10	Correct	39 ms	376 KB	Output is correct
11	Correct	43 ms	332 KB	Output is correct
12	Correct	38 ms	336 KB	Output is correct
13	Correct	37 ms	360 KB	Output is correct
14	Correct	45 ms	480 KB	Output is correct
15	Correct	40 ms	380 KB	Output is correct
16	Correct	37 ms	352 KB	Output is correct
17	Correct	32 ms	360 KB	Output is correct
18	Correct	33 ms	372 KB	Output is correct
19	Correct	41 ms	336 KB	Output is correct
20	Correct	35 ms	336 KB	Output is correct
21	Correct	21 ms	392 KB	Output is correct
22	Correct	26 ms	376 KB	Output is correct
23	Correct	40 ms	336 KB	Output is correct
24	Correct	30 ms	352 KB	Output is correct
25	Correct	29 ms	376 KB	Output is correct
26	Correct	23 ms	340 KB	Output is correct
27	Correct	39 ms	364 KB	Output is correct
28	Correct	28 ms	456 KB	Output is correct
29	Partially correct	23 ms	336 KB	Output is partially correct
30	Partially correct	38 ms	348 KB	Output is partially correct
31	Correct	44 ms	456 KB	Output is correct
32	Correct	50 ms	372 KB	Output is correct
33	Correct	28 ms	380 KB	Output is correct
34	Correct	34 ms	352 KB	Output is correct
35	Partially correct	48 ms	336 KB	Output is partially correct
36	Correct	39 ms	352 KB	Output is correct
37	Correct	38 ms	368 KB	Output is correct
38	Correct	39 ms	336 KB	Output is correct
39	Correct	45 ms	376 KB	Output is correct
40	Correct	25 ms	368 KB	Output is correct
41	Correct	47 ms	336 KB	Output is correct
42	Partially correct	39 ms	376 KB	Output is partially correct
43	Correct	8 ms	208 KB	Output is correct
44	Correct	30 ms	304 KB	Output is correct
45	Correct	28 ms	440 KB	Output is correct
46	Correct	33 ms	368 KB	Output is correct
47	Correct	22 ms	348 KB	Output is correct
48	Correct	35 ms	328 KB	Output is correct

Submission #837153

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 15.0 / 15.0

Subtask #3 74.83 / 75.0

Subtask #1
10.0 / 10.0

Subtask #2
15.0 / 15.0

Subtask #3
74.83 / 75.0