Submission #432486

#	Time	Username	Problem	Language	Result	Execution time	Memory
432486		Pbezz	Counting Mushrooms (IOI20_mushrooms)	C++14	25 / 100	149 ms	316 KiB

mushrooms

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

using namespace std;

#define ll long long
#define pb push_back
typedef pair<ll,ll> pii;

const ll MAXN = 2e5+5;
const ll INF = 1e9+7;

int count_mushrooms(int n) {
	std::vector<int> m; int ans=1,i;

	if(n==2){
	m={0,1};
	int c1 = use_machine(m);
	if(c1==0)return 2;
	return 1;

	}



	m={0,1};
	int c1 = use_machine(m);
	if(c1==0){//0 e 1 sao A
ans=2;
	for(i=2;i<n-1;i+=2){//testar i e i+2
	m={0,i,1,i+1};
	int c1 = use_machine(m);

	if(c1==0)ans+=2;
	if(c1==1)ans++;
	if(c1==2)ans++;

}

	if(n%2==1){
	m={0,n-1};
	int c1 = use_machine(m);
	if(c1==0)ans++;
}

	}else{
	m={1,2};
	int c1 = use_machine(m);
	if(c1==0){//1 e 2 sao B

ans=1;
	for(i=3;i<n-1;i+=2){//testar i e i+2
	m={1,i,2,i+1};
	int c1 = use_machine(m);

	if(c1==1)ans++;
	if(c1==2)ans++;
	if(c1==3)ans+=2;
}

	if(n%2==0){
	m={0,n-1};
	int c1 = use_machine(m);
	if(c1==0)ans++;
}




	}else{//0 e 2 sao A

ans=2;
	for(i=3;i<n-1;i+=2){//testar i e i+2
	m={0,i,2,i+1};
	int c1 = use_machine(m);

	if(c1==0)ans+=2;
	if(c1==1)ans++;
	if(c1==2)ans++;
}

	if(n%2==0){
	m={0,n-1};
	int c1 = use_machine(m);
	if(c1==0)ans++;
}






	}
}




	return ans;
}

• Subtask 1: 25 / 100