#include "stations.h"
#include <vector>
#include <bits/stdc++.h>
using namespace std;
// #define int long long
const int N=1e3+100;
vector<int> ma[N];
vector<int> labels;
void dfs(int x,int v,int p)
{
labels[x]=v;
for(auto y:ma[x])
{
if(y==p)continue;
dfs(y,(v*8ll)+y,x);
}
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
labels.resize(n,0);
for(int i=0;i<(n);i++)ma[i].clear(),labels[i]=i;
for(int i=0;i<(n-1);i++)
{
ma[u[i]].push_back(v[i]);
ma[v[i]].push_back(u[i]);
}
dfs(0,0,-1);
return labels;
}
int find_next_station(int s, int t, std::vector<int> c) {
int last=t;
while(t>0)
{
t=t/8;
if(t==s)
return last;
last=t;
}
return (s/8);
}
