#include "mushrooms.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
int U(vector<int> v){ return use_machine(v); }
const int B = 100;
vector<int> V[2];
int count_mushrooms(int n) {
int ans = 1, i=1, P;
if(n<=200){
for(int i = 1; i < n; i++)
ans+=!U({0,i});
return ans;
}
V[0].clear(), V[1].clear(); V[0].pb(0);
for(int j:{0,1}) V[U({0,i})].pb(i), i++;
P = sz(V[1])>sz(V[0]);
int x = U({V[P][0],i,V[P][1],i+1});
V[x%2?!P:P].pb(i+1); V[x>=2?!P:P].pb(i); i+=2;
while(i<n and sz(V[0])+sz(V[1])<2*B){
vector<int> v; v.clear();
P = sz(V[1])>sz(V[0]);
v.pb(V[P][0]), v.pb(i+1);
v.pb(V[P][1]), v.pb(i+2);
v.pb(V[P][2]), v.pb(i);
int x = U(v), c1=P, c2=P, c3=P, c4=P, c5=P;
if(x%2) c3^=1, x--;
if(x!=2){
if(x==4) c1^=1, c2^=1;
V[c1].pb(i+1); V[c2].pb(i+2); V[c3].pb(i); i+=3;
}
else{
if(sz(V[!P])>=2){
v.clear(); v.pb(V[!P][0]), v.pb(i+1), v.pb(V[!P][1]); v.pb(V[P][0]);
v.pb(i+2); v.pb(V[P][1]); v.pb(i+3); v.pb(V[P][2]); v.pb(i+4);
x = U(v)-1; c1 = !P;
if(x%2) c5^=1, x--;
if(x==2) c4^=1;
else if(x==4) c1^=1, c2^=1;
else if(x==6) c1^=1, c2^=1, c4^=1;
V[c1].pb(i+1); V[c2].pb(i+2); V[c3].pb(i); V[c4].pb(i+3); V[c5].pb(i+4); i+=5;
}
else{
if(U({0,i+1})) c1=1,c2=0;
else c1=0, c2=1;
V[c1].pb(i+1); V[c2].pb(i+2); V[c3].pb(i); i+=3;
}
}
}
ans=sz(V[0]);
while(i<n){
P = sz(V[1])>sz(V[0]);
vector<int> v; v.clear();
for(int j = 0; j < sz(V[P]) and i<n; j++)
v.pb(V[P][j]), v.pb(i), i++;
int x = U(v);
if(!P) ans+=sz(v)/2;
if(x%2) ans+=P?1:-1, V[P^1].pb(v.back());
else V[P].pb(v.back());
ans+=x/2*(P?1:-1);
if(i==n) break;
}
return ans;
}
Compilation message
mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:21:13: warning: unused variable 'j' [-Wunused-variable]
21 | for(int j:{0,1}) V[U({0,i})].pb(i), i++;
| ^
| # |
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 |
Correct |
0 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
344 KB |
Output is correct |
| 7 |
Correct |
3 ms |
344 KB |
Output is correct |
| 8 |
Correct |
2 ms |
452 KB |
Output is correct |
| 9 |
Correct |
3 ms |
344 KB |
Output is correct |
| 10 |
Correct |
3 ms |
344 KB |
Output is correct |
| 11 |
Correct |
3 ms |
460 KB |
Output is correct |
| 12 |
Correct |
3 ms |
344 KB |
Output is correct |
| 13 |
Correct |
4 ms |
344 KB |
Output is correct |
| 14 |
Correct |
2 ms |
344 KB |
Output is correct |
| 15 |
Correct |
3 ms |
344 KB |
Output is correct |
| 16 |
Correct |
5 ms |
344 KB |
Output is correct |
| 17 |
Correct |
2 ms |
344 KB |
Output is correct |
| 18 |
Correct |
3 ms |
452 KB |
Output is correct |
| 19 |
Correct |
3 ms |
344 KB |
Output is correct |
| 20 |
Correct |
3 ms |
344 KB |
Output is correct |
| 21 |
Correct |
3 ms |
344 KB |
Output is correct |
| 22 |
Correct |
3 ms |
472 KB |
Output is correct |
| 23 |
Correct |
2 ms |
344 KB |
Output is correct |
| 24 |
Correct |
2 ms |
344 KB |
Output is correct |
| 25 |
Correct |
3 ms |
476 KB |
Output is correct |
| 26 |
Correct |
3 ms |
448 KB |
Output is correct |
| 27 |
Correct |
3 ms |
344 KB |
Output is correct |
| 28 |
Correct |
3 ms |
344 KB |
Output is correct |
| 29 |
Correct |
3 ms |
344 KB |
Output is correct |
| 30 |
Correct |
3 ms |
472 KB |
Output is correct |
| 31 |
Correct |
5 ms |
476 KB |
Output is correct |
| 32 |
Correct |
3 ms |
344 KB |
Output is correct |
| 33 |
Correct |
3 ms |
444 KB |
Output is correct |
| 34 |
Correct |
3 ms |
344 KB |
Output is correct |
| 35 |
Correct |
3 ms |
452 KB |
Output is correct |
| 36 |
Correct |
3 ms |
460 KB |
Output is correct |
| 37 |
Correct |
3 ms |
344 KB |
Output is correct |
| 38 |
Correct |
3 ms |
344 KB |
Output is correct |
| 39 |
Correct |
3 ms |
344 KB |
Output is correct |
| 40 |
Correct |
3 ms |
344 KB |
Output is correct |
| 41 |
Correct |
3 ms |
340 KB |
Output is correct |
| 42 |
Correct |
3 ms |
344 KB |
Output is correct |
| 43 |
Correct |
3 ms |
344 KB |
Output is correct |
| 44 |
Correct |
3 ms |
344 KB |
Output is correct |
| 45 |
Correct |
3 ms |
344 KB |
Output is correct |
| 46 |
Correct |
3 ms |
440 KB |
Output is correct |
| 47 |
Correct |
3 ms |
344 KB |
Output is correct |
| 48 |
Correct |
4 ms |
464 KB |
Output is correct |
| 49 |
Correct |
3 ms |
468 KB |
Output is correct |
| 50 |
Correct |
3 ms |
344 KB |
Output is correct |
| 51 |
Correct |
3 ms |
344 KB |
Output is correct |
| 52 |
Correct |
3 ms |
344 KB |
Output is correct |
| 53 |
Correct |
3 ms |
468 KB |
Output is correct |
| 54 |
Correct |
3 ms |
344 KB |
Output is correct |
| 55 |
Correct |
3 ms |
344 KB |
Output is correct |
| 56 |
Correct |
4 ms |
344 KB |
Output is correct |
| 57 |
Correct |
3 ms |
344 KB |
Output is correct |
| 58 |
Correct |
3 ms |
444 KB |
Output is correct |
| 59 |
Correct |
3 ms |
344 KB |
Output is correct |
| 60 |
Correct |
3 ms |
344 KB |
Output is correct |
| 61 |
Correct |
3 ms |
452 KB |
Output is correct |
| 62 |
Correct |
0 ms |
344 KB |
Output is correct |
| 63 |
Correct |
0 ms |
344 KB |
Output is correct |
| 64 |
Correct |
0 ms |
344 KB |
Output is correct |
| 65 |
Correct |
1 ms |
344 KB |
Output is correct |
| 66 |
Correct |
0 ms |
432 KB |
Output is correct |
| 67 |
Correct |
1 ms |
344 KB |
Output is correct |
| 68 |
Correct |
0 ms |
344 KB |
Output is correct |
| 69 |
Correct |
0 ms |
344 KB |
Output is correct |
| 70 |
Correct |
0 ms |
344 KB |
Output is correct |
| 71 |
Correct |
0 ms |
344 KB |
Output is correct |
| 72 |
Correct |
0 ms |
344 KB |
Output is correct |
| 73 |
Correct |
0 ms |
344 KB |
Output is correct |
| 74 |
Correct |
0 ms |
344 KB |
Output is correct |
| 75 |
Correct |
0 ms |
344 KB |
Output is correct |
| 76 |
Correct |
0 ms |
344 KB |
Output is correct |
| 77 |
Correct |
0 ms |
344 KB |
Output is correct |
| 78 |
Correct |
0 ms |
344 KB |
Output is correct |
| 79 |
Correct |
0 ms |
344 KB |
Output is correct |
| 80 |
Correct |
0 ms |
344 KB |
Output is correct |
| 81 |
Correct |
0 ms |
344 KB |
Output is correct |
| 82 |
Correct |
0 ms |
344 KB |
Output is correct |
| 83 |
Correct |
0 ms |
344 KB |
Output is correct |
| 84 |
Correct |
0 ms |
344 KB |
Output is correct |
| 85 |
Correct |
0 ms |
344 KB |
Output is correct |
| 86 |
Correct |
0 ms |
344 KB |
Output is correct |
| 87 |
Correct |
0 ms |
344 KB |
Output is correct |
| 88 |
Correct |
0 ms |
344 KB |
Output is correct |
| 89 |
Correct |
0 ms |
344 KB |
Output is correct |
| 90 |
Correct |
0 ms |
344 KB |
Output is correct |
| 91 |
Correct |
0 ms |
344 KB |
Output is correct |
