Submission #629620

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
629620	2022-08-14 19:04:47	study	Rarest Insects (IOI22_insects)	C++17	100 / 100	57 ms	304 KiB

insects

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#include <bits/stdc++.h>
#include "insects.h"
using namespace std;
 
int min_cardinality(int N) {
  vector<int> a(N);
  for (int i=0; i<N; ++i){
    a[i] = i;
  }
//  random_shuffle(a.begin(),a.end());
  bitset<2000> inside;
  int nbElems = 0;
  for (int i=0; i<N; ++i){
    move_inside(a[i]);
    if (i != 0){
      int maxFreq = press_button();
      if (maxFreq > 1) move_outside(a[i]);
      else{
        ++nbElems;
        inside[a[i]] = true;
//        cout << a[i] << endl;
      }
    }
    else{
      ++nbElems;
      inside[a[i]] = true;
//      cout << a[i] << endl;
    }
  }
  if (nbElems == 1) return N;
 
 
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Compilation message (stderr)

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:56:9: warning: unused variable 'sqrt_siz' [-Wunused-variable]
   56 |     int sqrt_siz = sqrt((int)last.size());
      |         ^~~~~~~~

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