제출 #1356200

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1356200		vjudge1	드문 곤충 (IOI22_insects)	C++20	0 / 100	71 ms	424 KiB

insects

#include "insects.h"
#include<bits/stdc++.h>
using namespace std;
int a[2100];
int min_cardinality(int N) {
    int k=0;
    int val=0;
    for(int i=0;i<N;i++){
        move_inside(i);
        val=press_button();
        a[i]=1;
        if(val==1){
            k++;
        }
        else{
            a[i]=0;
            move_outside(i);
        }
    }
    for(int i=0;i<N;i++){
        if(a[i]){
            move_outside(i);
            a[i]=0;
        }
    }
    int  now=1;
    int ins=0;
    while(now<=N/k){
        for(int i=0;i<N;i++){
            if(!a[i]){
                a[i]=1;
                move_inside(i);
                ins++;
            }
            val=press_button();
            if(val>now){
                move_outside(i);
                ins--;
                a[i]=0;
            }
        }
        if(ins==now*k){
            now*=2;
        }
        else break;
    }
    int l=now/2,r=now;
    while(l<r){
        int ins=0;
        int mid=(l+r+1)/2;
        for(int i=0;i<N;i++){
            move_inside(i);
            val=press_button();
            ins++;
            a[i]=1;
            if(val>mid){
                move_outside(i);
                ins--;
                a[i]=0;
            }
        }
        if(ins==mid*k)l=mid;
        else r=mid-1;
        for(int i=0;i<N;i++){
            if(a[i]){
                move_outside(i);
                a[i]=0;
            }
        }
    }
    return l;
}

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