Submission #1232189

#	Time	Username	Problem	Language	Result	Execution time	Memory
1232189		inesfi	Rarest Insects (IOI22_insects)	C++20	25 / 100	94 ms	444 KiB

insects

#include "insects.h"
#include<bits/stdc++.h>
using namespace std;

// void move_inside(int i)
// void move_outside(int i)
// int press_button()

const int TAILLEMAXI=2002;
bool trouve[TAILLEMAXI];
int cb[TAILLEMAXI];
vector<int> diff;

int min_cardinality(int N) {
    trouve[0]=true;
    move_inside(0);
    int nbdiff=1;
    cb[0]=1;
    diff.push_back(0);
    for (int i=1;i<N;i++){
        move_inside(i);
        int nouv=press_button();
        if (nouv==1){
            nbdiff++;
            trouve[i]=1;
            cb[i]=1;
            diff.push_back(i);
        }
        else {
            move_outside(i);
        }
    }
    for (auto i:diff){
        move_outside(i);
    }
    if (nbdiff<sqrt(N)){
        for (int i=0;i<N;i++){
            if (trouve[i]==false){
                move_inside(i);
                int indice=0;
                bool ok=false;
                while (ok==false){
                    move_inside(diff[indice]);
                    if (press_button()!=1){
                        cb[diff[indice]]++;
                        ok=true;
                    }
                    move_outside(diff[indice]);
                    indice++;
                }
                move_outside(i);
                trouve[i]=true;
            }
        }
        int rep=1000*1000;
        for (auto i:diff){
            rep=min(rep,cb[i]);
        }
        return rep;
    }
    int nbtours=1;
    while (1>0){
        int nouv=0;
        diff.clear();
        for (int i=0;i<N;i++){
            if (trouve[i]==false){
                move_inside(i);
                if (press_button()==1){
                    nouv++;
                    trouve[i]=true;
                    diff.push_back(i);
                }
                else {
                    move_outside(i);
                }
            }
        }
        if (nouv!=nbdiff){
            return nbtours;
        }
        nbtours++;
        for (auto i:diff){
            move_outside(i);
        }
    }
}

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