Submission #830166

#	Time	Username	Problem	Language	Result	Execution time	Memory
830166		Edu175	Counting Mushrooms (IOI20_mushrooms)	C++17	25 / 100	95 ms	208 KiB

mushrooms

#include "mushrooms.h"
#include <bits/stdc++.h>
#define pb push_back
#define fst first
#define snd second
#define fore(i,a,b) for(ll i=a,ioi=b;i<ioi;i++)
#define SZ(x) ((int)x.size())
#define ALL(x) x.begin(),x.end()
#define mset(a,v) memset((a),(v),sizeof(a))
#define imp(v) for(auto dfh:v)cout<<dfh<<" ";cout<<"\n"
using namespace std;
typedef long long ll;
typedef pair<ll,ll> ii;

ll ask(vector<ll>a){
	vector<int>ai;
	for(auto i:a)ai.pb(i);
	return use_machine(ai);
}
int count_mushrooms(int n){
	ll res=1;
	for(ll i=1;i<n;i+=2){
		if(i==n-1)res+=1-ask({0,i});
		else res+=2-ask({i,0,i+1});
	}
	return res;
}

• Subtask 1: 25 / 100