#include "books.h"
#include<bits/stdc++.h>
#define vi vector<int>
#define vb vector<bool>
#define pii pair<int,int>
#define vpii vector<pair<int,int>>
#define vvi vector<vi>
#define mp make_pair
#define pb push_back
#define f0r(i,n) for(int i = 0; i<n; i++)
#define FOR(i, k, n) for(int i = k; i<n; i++)
#define dout(x) cout<<x<<' '<<#x<<endl;
#define vout(x) for(auto u : x)cout<<u<<' '; cout<<endl;
using namespace std;
long long minimum_walk(std::vector<signed> p, signed s) {
int n = p.size();
int ans = 0;
vb vis(n); int del = 0; int lst = 0;
f0r(i,n){
if(!vis[i]){
ans += del;
if(p[i] == i){
vis[i] = 1; del++;
}
else{
lst = i;
int cur = p[i]; ans += abs(cur - i); vis[cur] = 1;
while(cur != i){
int ori = cur; cur = p[cur]; vis[cur] = 1;
ans += abs(ori - cur);
}
}
}
else del++;
}
ans += lst;
return ans;
}
