Submission #788941

#	Time	Username	Problem	Language	Result	Execution time	Memory
788941		mosiashvililuka	Rarest Insects (IOI22_insects)	C++17	0 / 100	9 ms	208 KiB

insects

#include<bits/stdc++.h>
#include "insects.h"
using namespace std;
int a,b,c,d,e,i,j,ii,jj,zx,xc,lef,rig,mid,bo[2009],raod,BO[2009],ZED[2009],FORA;
vector <int> diff;
void ADD(int i){
    move_inside(i-1);bo[i]=1;
}
void REM(int i){
    move_outside(i-1);bo[i]=0;
}
int ask(){
    return press_button();
}
int min_cardinality(int NN) {
    a=NN;
    for(i=1; i<=a; i++){
        ADD(i);
        c=ask();
        if(c>1){
            REM(i);
        }else{
            diff.push_back(i);
        }
    }

    for(i=1; i<=a; i++){
        if(bo[i]==1) REM(i);
    }

    raod=diff.size();
    lef=1;rig=a/raod+1;
    while(1){
        if(lef+1>=rig) break;
        mid=(lef+rig)/2;
        for(i=0; i<=a+1; i++){
            ZED[i]=0;
        }
        for(i=1; i<=a; i++){
            if(BO[i]==1) continue;
            ADD(i);
            c=ask();
            if(c>mid){
                REM(i);ZED[i]=1;
            }else{
                ;
            }
        }

        zx=0;
        for(i=1; i<=a; i++){
            if(bo[i]==1) zx++;
        }
        if(zx==(mid-FORA)*raod){
            lef=mid;FORA=mid;

            for(i=1; i<=a; i++){
                if(bo[i]==1){
                    BO[i]=1;//shegidzlia yvelas mid occurence amoshalo
                }
            }
        }else{
            rig=mid;

            for(i=1; i<=a; i++){
                if(ZED[i]==1){
                    BO[i]=1;
                }
            }
        }

        for(i=1; i<=a; i++){
            if(bo[i]==1) REM(i);
        }
    }

    return lef;
}

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