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Submission #641268

# Submission time Handle Problem Language Result Execution time Memory
641268 2022-09-16T09:44:25 Z jamezzz Rarest Insects (IOI22_insects) C++17
100 / 100
 61 ms 336 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;

bool in[2005],bad[2005];
mt19937 rng(218);

int min_cardinality(int N){
	int types=0;
	for(int i=0;i<N;++i){
		move_inside(i);
		in[i]=true;
		if(press_button()>1){
			move_outside(i);
			in[i]=false;
		}
		else ++types;
	}
	int lo=2,hi=N/types,mid,res=1;
	vector<int> add;
	int tot=types;
	vector<int> index;
	for(int i=0;i<N;++i){
		index.push_back(i);
	}
	while(lo<=hi){
		mid=(lo+hi)>>1;
		add.clear();
		vector<int> newbad;
		shuffle(index.begin(),index.end(),rng);
		for(int i:index){
			if(in[i]||bad[i])continue;
			move_inside(i);
			in[i]=true;
			++tot;
			if(press_button()>mid){
				move_outside(i);
				in[i]=false;
				newbad.push_back(i);
				--tot;
			}
			else add.push_back(i);
			if(tot==mid*types)break;
		}
		if(tot==mid*types){
			res=mid;
			lo=mid+1;
		}
		else{
			hi=min(mid-1,tot/types);
			for(int i:add){
				move_outside(i);
				in[i]=false;
				--tot;
			}
			for(int i:newbad){
				bad[i]=true;
			}
		}
	}
	return res;
}

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 5 ms 208 KB Output is correct
7 Correct 2 ms 304 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 5 ms 308 KB Output is correct
13 Correct 3 ms 304 KB Output is correct
14 Correct 5 ms 208 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 6 ms 304 KB Output is correct
17 Correct 5 ms 304 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 6 ms 308 KB Output is correct
20 Correct 4 ms 308 KB Output is correct
21 Correct 2 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 5 ms 208 KB Output is correct
7 Correct 2 ms 304 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 5 ms 308 KB Output is correct
13 Correct 3 ms 304 KB Output is correct
14 Correct 5 ms 208 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 6 ms 304 KB Output is correct
17 Correct 5 ms 304 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 6 ms 308 KB Output is correct
20 Correct 4 ms 308 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 3 ms 208 KB Output is correct
23 Correct 17 ms 288 KB Output is correct
24 Correct 12 ms 208 KB Output is correct
25 Correct 18 ms 208 KB Output is correct
26 Correct 18 ms 296 KB Output is correct
27 Correct 23 ms 304 KB Output is correct
28 Correct 7 ms 208 KB Output is correct
29 Correct 17 ms 304 KB Output is correct
30 Correct 31 ms 208 KB Output is correct
31 Correct 21 ms 304 KB Output is correct
32 Correct 24 ms 288 KB Output is correct
33 Correct 29 ms 208 KB Output is correct
34 Correct 24 ms 208 KB Output is correct
35 Correct 27 ms 252 KB Output is correct
36 Correct 24 ms 208 KB Output is correct
37 Correct 26 ms 308 KB Output is correct
38 Correct 25 ms 284 KB Output is correct
39 Correct 22 ms 308 KB Output is correct
40 Correct 16 ms 308 KB Output is correct
41 Correct 11 ms 312 KB Output is correct

Subtask #3
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 208 KB Output is correct
7 Correct 35 ms 300 KB Output is correct
8 Correct 20 ms 316 KB Output is correct
9 Correct 35 ms 292 KB Output is correct
10 Correct 37 ms 304 KB Output is correct
11 Correct 46 ms 284 KB Output is correct
12 Correct 23 ms 288 KB Output is correct
13 Correct 56 ms 284 KB Output is correct
14 Correct 44 ms 300 KB Output is correct
15 Correct 43 ms 336 KB Output is correct
16 Correct 38 ms 296 KB Output is correct
17 Correct 31 ms 300 KB Output is correct
18 Correct 44 ms 284 KB Output is correct
19 Correct 57 ms 300 KB Output is correct
20 Correct 37 ms 208 KB Output is correct
21 Correct 41 ms 284 KB Output is correct
22 Correct 61 ms 304 KB Output is correct
23 Correct 52 ms 304 KB Output is correct
24 Correct 46 ms 296 KB Output is correct
25 Correct 23 ms 332 KB Output is correct
26 Correct 21 ms 284 KB Output is correct
27 Correct 35 ms 288 KB Output is correct
28 Correct 43 ms 304 KB Output is correct
29 Correct 37 ms 288 KB Output is correct
30 Correct 34 ms 304 KB Output is correct
31 Correct 45 ms 308 KB Output is correct
32 Correct 45 ms 208 KB Output is correct
33 Correct 52 ms 300 KB Output is correct
34 Correct 39 ms 300 KB Output is correct
35 Correct 53 ms 300 KB Output is correct
36 Correct 50 ms 296 KB Output is correct
37 Correct 24 ms 208 KB Output is correct
38 Correct 54 ms 288 KB Output is correct
39 Correct 48 ms 284 KB Output is correct
40 Correct 34 ms 208 KB Output is correct
41 Correct 40 ms 296 KB Output is correct
42 Correct 50 ms 288 KB Output is correct
43 Correct 10 ms 312 KB Output is correct
44 Correct 40 ms 304 KB Output is correct
45 Correct 33 ms 292 KB Output is correct
46 Correct 23 ms 304 KB Output is correct
47 Correct 29 ms 304 KB Output is correct
48 Correct 32 ms 208 KB Output is correct