#include "mushrooms.h"
#include<bits/stdc++.h>
using namespace std;
using ll = int;
#define pll pair <ll,ll>
#define fi first
#define se second
#define MP make_pair
#define sz(a) (ll((a).size()))
#define BIT(mask,i) (((mask) >> (i))&1)
#define MASK(i) (1LL<<(i))
ll use(vector <ll> tmp){
// for (auto x:tmp)cout<<x<<' ';
// cout<<endl;
return use_machine(tmp);
}
int count_mushrooms(int n) {
if (n<=5){
ll res = 1;
for (ll i = 1;i < n;i ++)if (use({0,i})==0)res++;
return res;
}
vector <ll> c[2];
c[0].push_back(0);
c[use({0,1})].push_back(1);
c[use({0,2})].push_back(2);
{
ll id = 0;
if (sz(c[1]) > sz(c[0]))id = 1;
ll tmp = use({3,c[id][0],4,c[id][1]});
c[id ^ (tmp%2)].push_back(3);
c[id ^ (tmp/2)].push_back(4);
}
// for (auto x:c[0])cout<<x<<' ';
// cout<<'\n';
// for (auto x:c[1])cout<<x<<' ';
// cout<<'\n';
ll ptr = 5;
ll res = 0;
while (ptr < n){
if (max(sz(c[0]),sz(c[1])) >= 80){
ll id = 0;
if (sz(c[1]) > sz(c[0]))id = 1;
vector <ll> tmp;
for (ll j = 0;j < sz(c[id]) && ptr < n;j ++,ptr++){
tmp.push_back(c[id][j]);
tmp.push_back(ptr);
}
ll cur = use(tmp);
if (cur%2)c[1-id].push_back(tmp.back());
else c[id].push_back(tmp.back());
if (id==1)res += cur/2;
else res += sz(tmp)/2 - (cur/2+1);
}
else{
ll id = 0;
if (sz(c[1]) > sz(c[0]))id = 1;
if (ptr + 4 < n){
ll tmp = use({ptr,c[id][0],ptr+1,c[id][1],ptr+2,c[id][2]});
c[id^BIT(tmp,0)].push_back(ptr);
tmp--;
if (tmp==2){
if (sz(c[1-id]) < 2){
tmp = use({ptr+1,c[id][0],ptr+2,c[id][1]});
c[id ^ BIT(tmp,0)].push_back(ptr+1);
c[id ^ BIT(tmp,1)].push_back(ptr+2);
ptr+=3;
}
else{
tmp = use({c[!id][0],ptr+1,c[!id][1],c[id][0],ptr+2,c[id][1],ptr+3,c[id][2],ptr+4});
tmp--;
c[id^BIT(tmp,0)].push_back(ptr+4);
c[id^BIT(tmp,1)].push_back(ptr+3);
c[id^BIT(tmp,2)].push_back(ptr+2);
c[1^id^BIT(tmp,2)].push_back(ptr+1);
ptr+=5;
}
}
else{
c[id^(tmp>0)].push_back(ptr+1);
c[id^(tmp>0)].push_back(ptr+2);
ptr+=3;
}
}
else if (ptr + 1 < n){
ll tmp = use({ptr,c[id][0],ptr+1,c[id][1]});
c[id ^ BIT(tmp,0)].push_back(ptr);
c[id ^ BIT(tmp,1)].push_back(ptr+1);
ptr+=2;
}
else{
c[use({0,ptr})].push_back(ptr);
ptr++;
}
}
}
// for (auto x:c[0])cout<<x<<' ';
// cout<<'\n';
// for (auto x:c[1])cout<<x<<' ';
// cout<<'\n';
res += sz(c[0]);
return res;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
344 KB |
Answer is not correct. |
| 4 |
Halted |
0 ms |
0 KB |
- |
