Submission #957183

#	Time	Username	Problem	Language	Result	Execution time	Memory
957183		12345678	Counting Mushrooms (IOI20_mushrooms)	C++17	25 / 100	63 ms	1500 KiB

mushrooms

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

using namespace std;

int count_mushrooms(int n) {
    int res=1;
    vector<int> qrs;
    for (int i=1; i<n; i+=2)
    {
        if (i==n-1) 
        {
            if (use_machine(vector<int> {0, i})==0) res++;
        }
        else
        {
            auto tmp=use_machine(vector<int> {0, i, i+1});
            if (tmp==2) res++;
            else if (tmp==0) res+=2;
            else
            {
                qrs.push_back(i+1);
                qrs.push_back(i);
            }
        }
    }
	if (qrs.size()>0)
    {
        res+=(use_machine(qrs)+1)/2;
    }
	return res;
}

• Subtask 1: 25 / 100