Submission #307385

#	Time	Username	Problem	Language	Result	Execution time	Memory
307385		arthur_nascimento	Counting Mushrooms (IOI20_mushrooms)	C++14	44.66 / 100	13 ms	384 KiB

mushrooms

#include "mushrooms.h"
#define pb push_back
using namespace std;

const int C = 100;

int count_mushrooms(int n) {
	vector<int> A,B;
	A.pb(0);

	for(int i=1;i<min(C,n);i++){
		vector<int> v;
		v.pb(0);
		v.pb(i);
		int x = use_machine(v);
		if(x) B.pb(i);
		else A.pb(i);
	}


	int ans = A.size();

	int eff = 0;
	for(int i=C;i<n;){

		int t = max(A.size(), B.size());
		int use = 0;
		if(B.size() > A.size()) use = 1;

		vector<int> vec = A;
		if(use) vec = B;
	
		vector<int> v;
		eff = 0;
		for(int j=0;j<t;j++){
			v.pb(vec[j]);
			if(j < t-1 && i+j < n) v.pb(i+j), eff++;
		}
		int x = use_machine(v);
		//printf("ff %d\n",eff);
		if(use) ans += x/2;
		else ans += eff - (x/2);

		i += t-1;
		
	}
	return ans;
}

• Subtask 1: 44.664 / 100