#include "rail.h"
#include <algorithm>
std::pair<int,int> sta[5000];
void findLocation(int n,int fir,int loc[],int type[])
{
int l,r;
int ld,rd;
int i,j,k;
loc[0]=fir;
type[0]=1;
if(n>1)
{
for(i=1;i<n;i++)
{
sta[i].first=getDistance(0,i);
sta[i].second=i;
}
std::sort(sta+1,sta+n);
loc[sta[1].second]=fir+sta[1].first;
type[sta[1].second]=2;
l=0;
r=sta[1].second;
for(i=2;i<n;i++)
{
ld=getDistance(l,sta[i].second);
rd=getDistance(r,sta[i].second);
k=-1;
for(j=0;j<i;j++)if(type[sta[j].second]==2&&loc[sta[j].second]>loc[0]&&loc[sta[j].second]>loc[r]-rd&&(k<0||loc[sta[j].second]<loc[sta[k].second]))k=j;
if(k<0||loc[sta[k].second]-loc[0]+loc[sta[k].second]-(loc[r]-rd)!=sta[i].first)
{
loc[sta[i].second]=loc[l]+ld;
type[sta[i].second]=2;
}
else
{
k=-1;
for(j=0;j<i;j++)if(type[sta[j].second]==2&&loc[sta[j].second]>loc[l]&&loc[sta[j].second]>loc[r]-rd&&(k<0||loc[sta[j].second]<loc[sta[k].second]))k=j;
if(k<0||loc[sta[k].second]-loc[l]+loc[sta[k].second]-(loc[r]-rd)!=ld)
{
loc[sta[i].second]=loc[l]+ld;
type[sta[i].second]=2;
}
else
{
loc[sta[i].second]=loc[r]-rd;
type[sta[i].second]=1;
}
}
if(type[sta[i].second]==1&&loc[sta[i].second]<loc[l])l=sta[i].second;
if(type[sta[i].second]==2&&loc[sta[i].second]>loc[r])r=sta[i].second;
}
}
}
