#include<bits/stdc++.h> using namespace std; #include "railroad.h" const int MAXN=212345; vector<pair<int,int> > v; long long plan_roller_coaster(vector<int> e,vector<int> s) { int n=e.size(); for(int i=0;i<n;i++) { v.push_back(make_pair(e[i],s[i])); } sort(v.begin(),v.end()); long long resp=0,rsp=0; for(int i=0;i<n;i++) { int id=i+1; id%=n; rsp+=v[i].second-v[id].first; } resp=rsp; for(int i=0;i<n;i++) { int id=i+1; id%=n; long long k=v[i].second-v[id].first; resp=min(rsp-k,resp); } return resp; }