#include <bits/stdc++.h>
#include "gondola.h"
using namespace std;
#define TL ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define rall(s) s.rbegin(),s.rend()
#define all(s) s.begin(),s.end()
#define pb push_back
#define se second
#define fi first
#define ll long long
#define ld long double
#define YES cout<<"YES\n"
#define Yes cout<<"Yes\n"
#define yes cout<<"yes\n"
#define NO cout<<"NO\n"
#define No cout<<"No\n"
#define no cout<<"no\n"
const int N = 5e5 + 9 , mod = 1e9 + 7;
ll a[N] , b[N] , d[N] , c[N] , dp[N] ;
int valid(int n , int inputSeq[]){
int x = -1 , y , k;
set<int>st;
for(int i = 0; i < n; i++){
st.insert(inputSeq[i]);
if(inputSeq[i] <= n)
x = k = i , y = inputSeq[i];
}
if(st.size() != n){
return 0;
}
if(x == -1)
return 1;
while((x + 1) % n != k){
x = (x + 1) % n;
y++;
y = (y - 1) % n + 1;
if(inputSeq[x] <= n && inputSeq[x] != y)
return 0;
}
return 1;
}
int replacement(int n, int gondolaSeq[], int replacementSeq[]){
int x = 0 , y = 1 , k = 0;
for(int i = 0; i < n; i++)
if(gondolaSeq[i] <= n)
x = k = i , y = gondolaSeq[i];
for(i = 1; i <= 3e5; i++)
c[i] = 0;
int mx = 0 ,s = 0 , f;
gondolaSeq[x] = y;
if(gondolaSeq[x] > mx)
mx = gondolaSeq[x],f = y;
while((x + 1) % n != k){
x = (x + 1) % n;
y++;
y = (y - 1) % n + 1;
c[gondolaSeq[x]] = y;
if(gondolaSeq[x] > mx)
mx = gondolaSeq[x],f = y;
}
x = n + 1;
while(x <= mx){
if(x == mx){
replacementSeq[s++] = f;
break;
}
if(c[x]){
replacementSeq[s++] = c[x];
}else {
replacementSeq[s++] = f;
f = x;
}
x++;
}
return s;
}
int countReplacement(int n, int inputSeq[]){
return -3;
}
/*
int main(){
int b[10] , a[] = {2, 3, 4, 9, 6, 7, 1 };
cout<<replacement(7 , a , b);
}*/
// Author : حسن
Compilation message
gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:33:18: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
33 | if(st.size() != n){
| ~~~~~~~~~~^~~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:54:9: error: 'i' was not declared in this scope
54 | for(i = 1; i <= 3e5; i++)
| ^
