Submission #429186

#	Time	Username	Problem	Language	Result	Execution time	Memory
429186		abdzag	Counting Mushrooms (IOI20_mushrooms)	C++17	0 / 100	1 ms	200 KiB

mushrooms

#include<bits/stdc++.h>
#include<unordered_map>
#include<unordered_set>
#include "mushrooms.h"
#define rep(i,a,b) for(int i=int(a);i<int(b);i++)
#define rrep(i,a,b) for(int i=int(a);i>int(b);i--)
#define trav(a,v) for(auto& a: v)
#define sz(v) v.size()
#define all(v) v.begin(),v.end()
#define vi vector<int>

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
const long long inf = 2e9;

using namespace std;

int count_mushrooms(int n) {
	ll ans = 0;
	vector<int> v(3);
	queue<ll> q;
	rep(i, 1, n)q.push(i);
	while (!q.empty()) {
		v[0] = q.front();
		q.pop();
		if (q.empty()) {
			v.pop_back();
			ll cur = use_machine(v);
			if (cur == 0)ans++;
		}
		else {
			v[2] = q.front();
			q.pop();
			ll cur = use_machine(v);
			if (cur == 0) {
				ans += 2;
			}
			else if (cur == 1) {
				ans += 1;
			}
		}
		
	}
	return ans;
}

• Subtask 1: 0 / 100