#include "jumps.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
const ll M = 2e5+10;
vector<ll> graph[M];
set<pair<ll, ll>> indlevel;
map<pair<ll, ll>, ll> valevel;
//vector<set<ll>> inconnected[M];
vector<ll> outconnected[M];
//ll curr_level[M];
//ll vis[M][M];
map<pair<ll, ll>, ll> vis;
vector<ll> H2;
void init(int N, std::vector<int> H) {
vector<ll> v[N+1];
for(int i=0; i<N; i++){
ll a = H[i];
v[a].push_back(i);
H2.push_back(a);
}
set<ll> s;
for(int i=0; i<N; i++){
s.insert(i);
}
for(int i=1; i<=N; i++){
if(i==N){
break;
}
ll ind = v[i][0];
ll val = H[ind];
//cout<<ind<<" "<<val<<endl;
auto it1 = s.lower_bound(ind);
auto it2 = s.upper_bound(ind);
it1--;
ll temp1, temp2;
if(it1!=s.end()){
temp1 = *it1;
temp1 = H[temp1];
//cout << temp1 << " " << val << " " << 65 << endl;
vis[{val, temp1}] = 1;
outconnected[temp1].push_back(val);
indlevel.insert({val, temp1});
valevel[{val, temp1}] = 1;
for(auto u : outconnected[val]){
if(vis[{u, temp1}]==0){
indlevel.insert({u, temp1});
valevel[{u, temp1}] = valevel[{u, val}]+1;
vis[{u, temp1}] = 1;
//cout << temp1 << " " << u << " " << 76 << endl;
outconnected[temp1].push_back(u);
}
}
}
if(it2!=s.end()){
temp1 = *it2;
temp1 = H[temp1];
//cout << temp1 << " " << val << " " << 84 << endl;
vis[{val, temp1}] = 1;
outconnected[temp1].push_back(val);
indlevel.insert({val, temp1});
valevel[{val, temp1}] = 1;
for(auto u : outconnected[val]){
if(vis[{u, temp1}]==0){
indlevel.insert({u, temp1});
valevel[{u, temp1}] = valevel[{u, val}]+1;
vis[{u, temp1}] = 1;
//cout << temp1 << " " << u << " " << 97 << endl;
outconnected[temp1].push_back(u);
}
}
}
// cout<<endl;
// cout<<endl;
auto itt = s.find(ind);
s.erase(itt);
}
// cout<<endl;
// cout<<endl;
// cout<<endl;
// for(int i=1; i<=N; i++){
// cout << i << endl;
// for(int j=0; j<outconnected[i].size(); j++){
// cout << outconnected[i][j] << " ";
// }
// cout<<endl;
// cout<<endl;
// }
}
int minimum_jumps(int A, int B, int C, int D) {
ll start = H2[A];
ll end = H2[C];
//cout << start << " " << end << endl;
ll ans = vis[{start, end}];
if(ans==0){
return -1;
} else {
ll ans2 = valevel[{start, end}];
return ans2;
}
}
