#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
int valid(int n, int inputSeq[]){
vector <pair<int,int>> s;
map <int,int> m;
for (int i = 0; i < n; i++) {
m[inputSeq[i]]++;
if (m[inputSeq[i]] == 2) return 0;
if (inputSeq[i] <= n) {
s.push_back({inputSeq[i],i});
}
}
int cnt = 0;
for (int i = 1; i < (s).size(); i++) {
if (s[i].first < s[i-1].second) {
cnt++;
if (s[i].first - s[i].second - n != (s[i-1].first - s[i-1].second)) return 0;
} else {
if (s[i].first - s[i].second != s[i-1].first - s[i-1].second) return 0;
}
}
return (cnt <= 1);
}
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
return 1;
}
//----------------------
int countReplacement(int n, int inputSeq[])
{
return 1;
}
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