Submission #386758

#	Time	Username	Problem	Language	Result	Execution time	Memory
386758		IloveN	Counting Mushrooms (IOI20_mushrooms)	C++14	25 / 100	139 ms	492 KiB

mushrooms

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

using namespace std;
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define all(vr) vr.begin(),vr.end()
#define vi vector<int>
#define vll vector<ll>
const int N=1e5+10;

int count_mushrooms(int n) {
	int cnt=1;
	for (int i=1;i<n;i+=2)
    {
        vi vt;
        vt.eb(i);
        vt.eb(0);
        if (i+1<n) vt.eb(i+1);
        cnt+=vt.size()-1-use_machine(vt);
    }
    return cnt;
}

• Subtask 1: 25 / 100