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Submission #893139

# Submission time Handle Problem Language Result Execution time Memory
893139 2023-12-26T14:52:03 Z Trisanu_Das Rarest Insects (IOI22_insects) C++17
99.95 / 100
 30 ms 1664 KB 
#include"insects.h"
#include<bits/stdc++.h>
using namespace std;
 
int min_cardinality(int N) {
	int k, diff = 0;
	set<int> in;
	for(int i = 0; i < N; ++i) {
		in.insert(i);
		move_inside(i);
		k = press_button();
		if(k == 2) {
			in.erase(i);
			move_outside(i);
			continue;
		}
		diff++;
	}
	int l = 1, r = N / diff;
	vector<bool> skp(N);
	while(l < r) {
		int mid = (l + r + 1) / 2;
		vector<int> lst_added, ws;
		for(int i = 0; i < N; ++i) {
			if(skp[i] || !in.insert(i).second) continue;
			move_inside(i);
			k = press_button();
			if(k > mid) {
				in.erase(i);
				move_outside(i);
				ws.push_back(i);
				continue;
			}
			lst_added.push_back(i);
			if(diff * mid == (int)in.size()) break;
		}
		if((int)in.size() < diff * mid) {
			r = mid - 1;
			if(l == r) continue;
			for(auto& u : lst_added) {
				in.erase(u);
				move_outside(u);
			}
			for(auto& u : ws) skp[u] = 1;
		} else l = mid;
	}
	return (l + r) / 2;
}

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 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 600 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 432 KB Output is correct
12 Correct 3 ms 600 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 3 ms 600 KB Output is correct
18 Correct 2 ms 600 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 600 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 600 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 600 KB Output is correct
9 Correct 2 ms 600 KB Output is correct
10 Correct 2 ms 344 KB Output is correct
11 Correct 1 ms 432 KB Output is correct
12 Correct 3 ms 600 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 600 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 3 ms 600 KB Output is correct
18 Correct 2 ms 600 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 600 KB Output is correct
21 Correct 2 ms 600 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 11 ms 432 KB Output is correct
24 Correct 5 ms 712 KB Output is correct
25 Correct 11 ms 868 KB Output is correct
26 Correct 13 ms 716 KB Output is correct
27 Correct 15 ms 600 KB Output is correct
28 Correct 4 ms 1112 KB Output is correct
29 Correct 13 ms 600 KB Output is correct
30 Correct 11 ms 600 KB Output is correct
31 Correct 10 ms 940 KB Output is correct
32 Correct 11 ms 848 KB Output is correct
33 Correct 16 ms 880 KB Output is correct
34 Correct 12 ms 440 KB Output is correct
35 Correct 14 ms 616 KB Output is correct
36 Correct 12 ms 1120 KB Output is correct
37 Correct 13 ms 856 KB Output is correct
38 Correct 10 ms 600 KB Output is correct
39 Correct 9 ms 856 KB Output is correct
40 Correct 8 ms 1112 KB Output is correct
41 Correct 4 ms 696 KB Output is correct

Subtask #3
74.95 / 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 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 28 ms 412 KB Output is correct
8 Correct 8 ms 1208 KB Output is correct
9 Correct 21 ms 1104 KB Output is correct
10 Correct 24 ms 600 KB Output is correct
11 Correct 23 ms 620 KB Output is correct
12 Correct 14 ms 856 KB Output is correct
13 Correct 26 ms 848 KB Output is correct
14 Correct 23 ms 1124 KB Output is correct
15 Correct 19 ms 1392 KB Output is correct
16 Correct 20 ms 932 KB Output is correct
17 Correct 21 ms 1148 KB Output is correct
18 Correct 25 ms 980 KB Output is correct
19 Correct 25 ms 700 KB Output is correct
20 Correct 28 ms 1616 KB Output is correct
21 Correct 27 ms 848 KB Output is correct
22 Correct 26 ms 676 KB Output is correct
23 Correct 25 ms 860 KB Output is correct
24 Correct 17 ms 888 KB Output is correct
25 Correct 13 ms 856 KB Output is correct
26 Correct 12 ms 856 KB Output is correct
27 Correct 27 ms 744 KB Output is correct
28 Correct 17 ms 1144 KB Output is correct
29 Correct 28 ms 1360 KB Output is correct
30 Correct 25 ms 916 KB Output is correct
31 Correct 30 ms 1180 KB Output is correct
32 Correct 26 ms 696 KB Output is correct
33 Correct 25 ms 1180 KB Output is correct
34 Correct 26 ms 476 KB Output is correct
35 Partially correct 30 ms 848 KB Output is partially correct
36 Correct 26 ms 1104 KB Output is correct
37 Correct 26 ms 1480 KB Output is correct
38 Correct 28 ms 712 KB Output is correct
39 Correct 26 ms 1104 KB Output is correct
40 Correct 16 ms 848 KB Output is correct
41 Correct 24 ms 1456 KB Output is correct
42 Partially correct 28 ms 1664 KB Output is partially correct
43 Correct 6 ms 600 KB Output is correct
44 Correct 20 ms 692 KB Output is correct
45 Correct 19 ms 676 KB Output is correct
46 Correct 12 ms 1192 KB Output is correct
47 Correct 17 ms 896 KB Output is correct
48 Correct 17 ms 648 KB Output is correct