Submission #835686

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
835686	2023-08-23 17:37:15	BT21tata	Counting Mushrooms (IOI20_mushrooms)	C++17	86.92 / 100	8 ms	332 KiB

mushrooms

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#include "mushrooms.h"
#include<bits/stdc++.h>
#define pb push_back
using namespace std;
const int BLOCK=271;
 
vector<int>a, b;
 
int count_mushrooms(int n)
{
  a.pb(0);
  if(n<=220)
  {
    for(int i=1; i<n; i++)
    {
      int cnt=use_machine({0, i});
      if(cnt) b.pb(i);
      else a.pb(i);
    }
    return a.size();
  }
  if(use_machine({0, 1})) b.pb(1);
  else a.pb(1);
 
  if(use_machine({0, 2})) b.pb(2);
  else a.pb(2);
 
  for(int i=3; i<BLOCK; i+=2)
  {
    if(a.size()>=2)
 
 
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• Subtask 1: 86.9231 / 100