Submission #726324

#	Time	Username	Problem	Language	Result	Execution time	Memory
726324		ismayil	Rarest Insects (IOI22_insects)	C++17	10 / 100	385 ms	296 KiB

insects

#pragma GCC optimize("O3")
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;
//g++ -std=c++17 insects.cpp stub.cpp
int min_cardinality(int N) {
	vector<int> in;
	for(int j = 0; j < N; j++){
		move_inside(j);
		if(press_button() > 1){
			move_outside(j);
		}else{
			in.push_back(j);
		}
	}
	int D = in.size();
	while(!in.empty()) move_outside(in.back()), in.pop_back();
	for(int i = 2; i <= N; i++){
		vector<int> in;
		for(int j = 0; j < N; j++){
			move_inside(j);
			if(press_button() > i){
				move_outside(j);
			}else{
				in.push_back(j);
			}
		}
		if(in.size() < i * D){
			return i - 1;
		}
		while(!in.empty()) move_outside(in.back()), in.pop_back();
	}
	return N;
}

Compilation message (stderr)

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:28:16: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   28 |   if(in.size() < i * D){
      |      ~~~~~~~~~~^~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 75