#include "gondola.h"
#include<bits/stdc++.h>
#define rc(x) return cout<<x<<endl,0
#define pb push_back
#define in insert
#define er erase
#define fd find
#define fr first
#define sc second
typedef long long ll;
const ll INF=0x3f3f3f3f3f3f3f3f;
const ll llinf=(1LL<<61);
const int inf=(1<<30);
const int nmax=3e5+50;
const int mod=1e9+7;
using namespace std;
map<int,bool> used;
int valid(int n, int inSeq[])
{
int start=-1;
for (int i=0;i<n;i++){
if (used[inSeq[i]]){
return 0;
}
used[inSeq[i]]=true;
if (inSeq[i]<=n){
if (start!=-1 && (n+i-inSeq[i]+1)%n!=start){
return 0;
}
start=(n+i-inSeq[i]+1)%n;
}
}
return 1;
}
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
return 0;
}
int countReplacement(int n, int inputSeq[])
{
return 0;
}
/*int main()
{
//freopen("sol.in","r",stdin);
//freopen("sol.out","w",stdout);
ios_base::sync_with_stdio(false);cin.tie(0);cerr.tie(0);cout.tie(0);
return 0;
}*/
