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Submission #830527

# Submission time Handle Problem Language Result Execution time Memory
830527 2023-08-19T07:42:59 Z FatihSolak Rarest Insects (IOI22_insects) C++17
0 / 100
 0 ms 208 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;

int min_cardinality(int N){
	vector<int> v;
	int now = 0;
	int dif = 0;
	auto add = [&](int x){
		v.push_back(x);
		move_inside(x);
		now = press_button();
	};
	auto del = [&](){
		move_outside(v.back());
		v.pop_back();
		now = press_button();
	};
	add(1);
	dif = 1;
	for(int i = 1;i<N;i++){
		add(i);
		if(now == 2){
			del();
		}
		else dif++;
	}
	int last = 1;
	int l = 1,r = N/dif;
	while(l < r){
		int m = (l + r + 1)/2;
		if(last < m){
			for(int i = 0;i<N;i++){
				if(find(v.begin(),v.end(),i) == v.end()){
					add(i);
					if(now > m)
						del();
				}
			}
		}
		if(last > m){
			vector<int> tmp;
			while(now != m){
				tmp.push_back(v.back());
				del();
			}
			for(int i = 0;i<N;i++){
				if(find(tmp.begin(),tmp.end(),i) == tmp.end() && find(v.begin(),v.end(),i) == v.end()){
					add(i);
					if(now > m)
						del();
				}
			}
		}
		last = m;
		if(v.size() == m * dif){
			l  = m;
		}
		else r = m -1;
	}
	return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:56:15: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   56 |   if(v.size() == m * dif){
      |      ~~~~~~~~~^~~~~~~~~~

Subtask #1
0 / 10.0

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

Subtask #2
0 / 15.0

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

Subtask #3
0 / 75.0

# 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 -