#include "gondola.h"
#include<bits/stdc++.h>
using namespace std;
int valid(int n, int ar[])
{
map<int,int>mp;
vector<int>v;
int cnt=0;
for(int i=1;i<=n;i++){
if(ar[i]<=n)v.push_back(ar[i]),mp[ar[i]]++,cnt+=(mp[ar[i]]>1?2:0);
}
for(int i=0;i<v.size()-1;i++){
if(v[i]>v[i+1])cnt++;
}
return cnt<=1;
}
//----------------------
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
return -2;
}
//----------------------
int countReplacement(int n, int inputSeq[])
{
return -3;
}
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