Submission #305791

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
305791	2020-09-24 01:22:38	myungwoo	Counting Mushrooms (IOI20_mushrooms)	C++17	0 / 100	1 ms	256 KiB

mushrooms

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#include <bits/stdc++.h>
#include "mushrooms.h"
using namespace std;
int count_mushrooms(int n)
{
  vector <int> arr[2];
  arr[0] = {0};
  for (int i=1;i<n;i++){
    if (i+1 < n && arr[0].size() > 1){
      int res = use_machine({arr[0][0], i, arr[0][1], i+1});
      arr[(res&2)>>1^1].push_back(i);
      arr[res&1^1].push_back(++i);
    }else if (i+1 < n && arr[1].size() > 1){
      int res = use_machine({arr[1][0], i, arr[1][1], i+1});
      arr[(res&2)>>1].push_back(i);
      arr[res&1].push_back(++i);
    }
    else arr[use_machine({0, i})].push_back(i);
  }
  return arr[0].size();
}
 
 
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Compilation message (stderr)

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:13:11: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
   13 |    arr[res&1^1].push_back(++i);
      |        ~~~^~

• Subtask 1: 0 / 100