#include "rail.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
void findLocation(int n, int first, int location[], int stype[]) {
location[0] = first;
stype[0] = 1;
int c;
vector<int> dis(n);
dis[0] = 0;
for (int i=1; i<n; i++) {
dis[i] = getDistance(0, i);
}
int mn=1e9;
for (int i=1; i<n; i++) {
if (dis[i] < mn) {
c = i;
mn = dis[i];
}
}
vector<int> disc(n);
disc[c] = 0;
for (int i=0; i<n; i++) {
disc[i] = getDistance(i, c);
}
stype[c] = 2;
location[c] = location[0] + dis[c];
for (int i=0; i<n; i++) {
if (i==0 || i==c) continue;
if (dis[i] == dis[c]+disc[i]) {
stype[i] = 1;
location[i] = location[c]-disc[i];
}
else {
stype[i] = 2;
location[i] = location[0]+dis[i];
}
}
}
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