Submission #922873

#	Time	Username	Problem	Language	Result	Execution time	Memory
922873		Ludissey	Rarest Insects (IOI22_insects)	C++17	10 / 100	27 ms	1112 KiB

insects

#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

struct insect {
  int i,sz;
};
vector<insect> types;

int min_cardinality(int N) {
  types.push_back(insect{0, 1});
  move_inside(0);
  vector<bool> skip(N);
  int boxSz=1;
  for (int i = 1; i < N; i++)
  {
    move_inside(i);
    if(press_button()==1){
      types.push_back(insect{i, 1});
      boxSz++;
    } else{
      int l=0, r=boxSz-1;
      while(r-l>0){
        int mid=(l+r)/2;
        for (int j = mid+1; j <= r; j++) move_outside(types[j].i);
        if(press_button()>1){
          r=mid;
        }else{
          l=mid+1;
          for (int j = mid+1; j <= r; j++) move_inside(types[j].i);
          for (int j = l; j <= mid; j++) move_outside(types[j].i);
        }
      } 
      types[l].sz++;
      move_outside(l);
      move_outside(i);
      for (int j = 0; j < (int)types.size(); j++) move_inside(types[j].i);
    }
  }
  int mn=1e9;
  for (int j = 0; j < (int)types.size(); j++) mn=min(mn,types[j].sz);
  return mn;
}

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