#include "bits/stdc++.h"
using namespace std;
#ifdef N_N_C
#include "debug.h"
#else
#define cebug(...) "Arya"
#endif
#define int long long
const int N=2005;
const int mod=1e9+7;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l, int r){
assert(l<=r);
return uniform_int_distribution<int> (l,r)(rng);
}
set <int> s;
int f=1;
int n,T[N];
void move_inside(int i){
s.insert(T[i]);
if(s.find(T[i])!=s.end()) f=2;
}
void move_outside(int i){
s.erase(s.find(T[i]));
f=1;
}
int press_buton(){
return f;
}
int min_cardinality(int n){
int type=0;
for(int i=0; i<n; i++){
move_inside(i);
press_buton();
if(press_buton()==1){
type++;
move_outside(i);
}
}
return rand(1,n/type);
}
void sol(){
cin>>n;
for(int i=0; i<n; i++) cin>>T[i];
cout<<min_cardinality(n);
}
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
//freopen(".inp", "r", stdin);
//freopen(".out", "w", stdout);
int tt=1;
//cin>>tt;
while(tt--){
sol();
}
cerr << "\nTime elapsed: " << 1000.0 * clock() / CLOCKS_PER_SEC << " ms.\n";
return 0;
}
/** /\_/\
* (= ._.)
* / >💖 \>💕
**/
Compilation message
insects.cpp:64:9: warning: "/*" within comment [-Wcomment]
64 | /** /\_/\
|
/usr/bin/ld: /tmp/ccFVJJXc.o: in function `main':
stub.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccWIh4oc.o:insects.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccFVJJXc.o: in function `main':
stub.cpp:(.text.startup+0x61): undefined reference to `min_cardinality(int)'
collect2: error: ld returned 1 exit status
