Submission #1024654

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1024654	2024-07-16T08:54:14 Z	Issa	Rarest Insects (IOI22_insects)	C++17	98.24 / 100	54 ms	720 KB

insects

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
pair<int, int> pii;

const int maxn = 1e5 + 100;

int n, d;
int used[maxn];
int f[maxn];
int mx[maxn];
int mn[maxn];

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

void add(int i){
	used[i] = 1;
	move_inside(i);
}
void del(int i){
	used[i] = 0;
	move_outside(i);
}
void clear(){
	for(int i = 1; i <= n; i++){
		if(used[i]) del(i);
	}
}

int min_cardinality(int N){
	d = 0; n = N;
	for(int i = N - 1; i >= 0; i--){
		add(i); mn[i] = n;
		if(press_button() == 1) f[i] = 1, d++;
		else del(i);
	} clear();
	int ans = n / d, x = 0;
	for(int l = 1, r = n / d - 1; l <= r;){
		int mid = (l + r) >> 1;
		if(x < mid){
			for(int i = 0; i < n; i++){
				if(used[i] || mx[i] > mid) continue;
				add(i);
				if(press_button() > mid){
					mx[i] = mid + 1;
					del(i);
				} else mn[i] = min(mn[i], mid);
			}
		} else if(x > mid){
			for(int i = n - 1; i >= 0; i--){
				if(!used[i] || mn[i] <= mid) continue;
				if(press_button() <= mid) break;
				del(i);
			}
			for(int i = 0; i < n; i++){
				if(used[i] || mx[i] > mid) continue;
				add(i);
				if(press_button() > mid){
					mx[i] = mid + 1;
					del(i);
				} else mn[i] = min(mn[i], mid);
			}
		} x = mid;
		bool ok = 0;
		for(int i = 0; i < n; i++){
			if(used[i] && f[i]) ok = 1;
		}
		if(!ok) l = mid + 1;
		else r = mid - 1, ans = mid;
	}
	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	412 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	5 ms	452 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	3 ms	344 KB	Output is correct
9	Correct	5 ms	344 KB	Output is correct
10	Correct	4 ms	344 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	4 ms	452 KB	Output is correct
13	Correct	2 ms	600 KB	Output is correct
14	Correct	4 ms	456 KB	Output is correct
15	Correct	3 ms	344 KB	Output is correct
16	Correct	3 ms	344 KB	Output is correct
17	Correct	4 ms	600 KB	Output is correct
18	Correct	3 ms	344 KB	Output is correct
19	Correct	4 ms	344 KB	Output is correct
20	Correct	4 ms	456 KB	Output is correct
21	Correct	2 ms	600 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	412 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	5 ms	452 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	3 ms	344 KB	Output is correct
9	Correct	5 ms	344 KB	Output is correct
10	Correct	4 ms	344 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	4 ms	452 KB	Output is correct
13	Correct	2 ms	600 KB	Output is correct
14	Correct	4 ms	456 KB	Output is correct
15	Correct	3 ms	344 KB	Output is correct
16	Correct	3 ms	344 KB	Output is correct
17	Correct	4 ms	600 KB	Output is correct
18	Correct	3 ms	344 KB	Output is correct
19	Correct	4 ms	344 KB	Output is correct
20	Correct	4 ms	456 KB	Output is correct
21	Correct	2 ms	600 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct
23	Correct	14 ms	440 KB	Output is correct
24	Correct	4 ms	344 KB	Output is correct
25	Correct	13 ms	464 KB	Output is correct
26	Correct	12 ms	340 KB	Output is correct
27	Correct	14 ms	344 KB	Output is correct
28	Correct	7 ms	600 KB	Output is correct
29	Correct	20 ms	344 KB	Output is correct
30	Correct	23 ms	452 KB	Output is correct
31	Correct	19 ms	464 KB	Output is correct
32	Correct	23 ms	588 KB	Output is correct
33	Correct	22 ms	684 KB	Output is correct
34	Correct	19 ms	600 KB	Output is correct
35	Correct	20 ms	344 KB	Output is correct
36	Correct	20 ms	344 KB	Output is correct
37	Correct	25 ms	344 KB	Output is correct
38	Correct	8 ms	456 KB	Output is correct
39	Correct	20 ms	344 KB	Output is correct
40	Correct	12 ms	464 KB	Output is correct
41	Correct	6 ms	464 KB	Output is correct

Subtask #3
73.24 / 75.0

#	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	1 ms	344 KB	Output is correct
6	Correct	0 ms	596 KB	Output is correct
7	Correct	43 ms	440 KB	Output is correct
8	Correct	11 ms	468 KB	Output is correct
9	Partially correct	27 ms	456 KB	Output is partially correct
10	Partially correct	32 ms	460 KB	Output is partially correct
11	Correct	27 ms	700 KB	Output is correct
12	Correct	17 ms	472 KB	Output is correct
13	Correct	29 ms	456 KB	Output is correct
14	Partially correct	43 ms	460 KB	Output is partially correct
15	Partially correct	24 ms	456 KB	Output is partially correct
16	Partially correct	32 ms	600 KB	Output is partially correct
17	Partially correct	29 ms	464 KB	Output is partially correct
18	Partially correct	35 ms	592 KB	Output is partially correct
19	Partially correct	32 ms	344 KB	Output is partially correct
20	Partially correct	39 ms	344 KB	Output is partially correct
21	Partially correct	47 ms	692 KB	Output is partially correct
22	Partially correct	40 ms	452 KB	Output is partially correct
23	Partially correct	54 ms	452 KB	Output is partially correct
24	Correct	22 ms	464 KB	Output is correct
25	Correct	20 ms	600 KB	Output is correct
26	Correct	12 ms	604 KB	Output is correct
27	Partially correct	41 ms	692 KB	Output is partially correct
28	Partially correct	40 ms	464 KB	Output is partially correct
29	Partially correct	36 ms	600 KB	Output is partially correct
30	Partially correct	35 ms	704 KB	Output is partially correct
31	Correct	38 ms	456 KB	Output is correct
32	Partially correct	44 ms	600 KB	Output is partially correct
33	Correct	43 ms	700 KB	Output is correct
34	Correct	35 ms	712 KB	Output is correct
35	Partially correct	41 ms	344 KB	Output is partially correct
36	Partially correct	38 ms	468 KB	Output is partially correct
37	Correct	25 ms	464 KB	Output is correct
38	Correct	25 ms	344 KB	Output is correct
39	Correct	37 ms	600 KB	Output is correct
40	Correct	38 ms	460 KB	Output is correct
41	Partially correct	26 ms	344 KB	Output is partially correct
42	Partially correct	26 ms	444 KB	Output is partially correct
43	Correct	8 ms	600 KB	Output is correct
44	Correct	21 ms	720 KB	Output is correct
45	Correct	32 ms	596 KB	Output is correct
46	Correct	14 ms	344 KB	Output is correct
47	Correct	15 ms	592 KB	Output is correct
48	Correct	22 ms	452 KB	Output is correct

Submission #1024654

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 15.0 / 15.0

Subtask #3 73.24 / 75.0

Subtask #1
10.0 / 10.0

Subtask #2
15.0 / 15.0

Subtask #3
73.24 / 75.0