#include <bits/stdc++.h>
#include "rail.h"
using namespace std;
#define pb push_back
#define eb emplace_back
#define ll long long
#define pii pair < int, int >
#define fr first
#define sc second
#define mk make_pair
#define sz(s) (int)s.size()
#define all(s) s.begin(), s.end()
#define Ok puts("ok");
#define whatis(x) cerr << #x << " = " << x << endl;
#define pause system("pause");
#define random (rand() ^ (rand() << 15))
const int N = (int)5e3 + 7;
const int inf = (int)1e9 + 7;
int n;
int dis[N][N];
pii mn;
int getdis(int i, int j) {
if (i == j) return 0;
if (dis[i][j] != 0) return dis[i][j];
dis[i][j] = getDistance(i, j);
return dis[i][j];
}
void findLocation(int nn, int first, int location[], int stype[]) {
n = nn;
mn.fr = inf;
stype[0] = 0;
location[0] = first;
for (int i = 1; i < n; i++) {
mn = min(mn, mk(getdis(0, i), i));
}
stype[mn.sc] = 1;
location[mn.sc] = mn.fr + first;
for (int i = 1; i < n; i++) {
if (i == mn.sc) continue;
if (getdis(0, i) + mn.fr == getdis(mn.sc, i)) {
stype[i] = 1;
location[i] = first + dis[0][i];
} else {
stype[i] = 0;
location[i] = location[mn.sc] - getdis(mn.sc, i);
}
}
for (int i = 0; i < n; i++) stype[i]++;
}
/*
4
4
1 8
2 11
1 7
1 9
*/
