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Submission #838325

# Submission time Handle Problem Language Result Execution time Memory
838325 2023-08-26T15:21:43 Z Baytoro Rarest Insects (IOI22_insects) C++17
0 / 100
 0 ms 208 KB 
#include <bits/stdc++.h>
using namespace std;
#include "insects.h"
//#include "stub.cpp"
#define ll long long
#define sc second
#define fr first
#define pb push_back
int min_cardinality(int n) {
	vector<int> used(n);
	int cnt=0;
	auto in = [&](int x){
		if(!used[x]){
			cnt++;
			used[x]=1;
			move_inside(x);
		}
	};
	auto out = [&](int x){
		if(used[x]){
			cnt--;
			used[x]=0;
			move_outside(x);
		}
	};
	for(int i=0;i<n;i++){
		in(i);
		if(press_button()>1){
			out(i);
		}
	}
	int ans=0;
	if(cnt==1) return n;
	int s=cnt;
	int l=1,r=n/s;
	const int A=50,B=50;
	vector<int> a(n);
	while(r-l>1){
		int md=(A*l+B*r)/(A+B);
		if(md==r) md--;
		else if(md==l) md++;
		for(int i=0;i<n;i++){
			if(!a[i] && used[i]) out(i);
		}
		for(int i=0;i<n && cnt<md*s;i++){
			if(!a[i]){
				in(i);
				if(press_button()>md) out(i);
			}
		}
		for(int i=0;i<n;i++){
			if(!a[i]){
				if(cnt==md*s && used[i]) a[i]++;
				else if(cnt!=md*s && !used[i]) a[i]++;
			}
		}
		if(cnt==md*s) l=md;
		else r=md;
	}
	return ans;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Incorrect 0 ms 208 KB Wrong answer.
3 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Incorrect 0 ms 208 KB Wrong answer.
3 Halted 0 ms 0 KB -

Subtask #3
0 / 75.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Wrong answer.
2 Halted 0 ms 0 KB -