Submission #435472

#	Time	Username	Problem	Language	Result	Execution time	Memory
435472		Collypso	Counting Mushrooms (IOI20_mushrooms)	C++17	25 / 100	167 ms	200 KiB

mushrooms

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vt vector
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int) (x).size()
#pragma GCC optimize ("O3")
#pragma GCC optimize ("O2")
#define F first
#define S second
//#define endl '\n'
//#define int long long

using namespace std;

int use_machine(vt<int> x);

int subtask1(int n)
{
	int ans = 1;
    for(int i = 1; i < n - 1; i += 2)
    {
        int tmp = use_machine({i + 1, 0, i});
        if (tmp == 0) ans += 2;
        else if (tmp == 1) ans += 1;
    }
    if (n % 2 == 0) ans += !use_machine({0, n - 1});
    return ans;
}

int count_mushrooms(int n)
{
    return subtask1(n);
}

• Subtask 1: 25 / 100