제출 #1356258

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1356258		vjudge1	드문 곤충 (IOI22_insects)	C++20	99.95 / 100	11 ms	456 KiB

insects

#include "insects.h"
#include<bits/stdc++.h>
using namespace std;
int a[2100];
vector<int> lef;
vector<int> lastin;
vector<int> lastout;
int min_cardinality(int N) {
    int k=0;
    int val=0;
    int ins=0;
    for(int i=0;i<N;i++){
        move_inside(i);
        val=press_button();
        a[i]=1;
        ins++;
        if(val==1){
            k++;
        }
        else{
            lef.push_back(i);
            ins--;
            a[i]=0;
            move_outside(i);
        }
    }

    int l=1,r=N/k;
    while(l<r){
        int mid=(l+r+1)/2;
        for(auto i:lef){
                if(ins==mid*k){
                    lastout.push_back(i);
                    continue;
                }
                a[i]=1;
                move_inside(i);
                ins++;
            
            val=press_button();
            if(val>mid){
                lastout.push_back(i);
                move_outside(i);
                ins--;
                a[i]=0;
            }
            else{
                lastin.push_back(i);
            } 
        }
        if(ins==mid*k){
            l=mid;
            lef=lastout;
        }
        else {
            r=mid-1;
            for(auto i : lastin){
                move_outside(i);
                a[i]=0;
                ins--;
            }
            reverse(lastin.begin(), lastin.end());
            lef=lastin;
        }
        lastin.clear();
        lastout.clear();
    }
    return l;
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 74.95 / 75