#include "stations.h"
#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define vi vector<int>
#define f0r(i,n) for(int i = 0; i<n; i++)
#define FOR(i, k, n) for(int i = k; i<n; i++)
#define dout(x) cout<<x<<' '<<#x<<'\n';
#define vout(x) for(auto u : x)cout<<u<<' '; cout<<'\n';
#define vb vector<bool>
using namespace std;
const int mxn = 1005;
vector<vi>adj(mxn);
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
f0r(i,n){
adj[i].clear();
}
vi deg(n);
f0r(i,n-1){
adj[u[i]].pb(v[i]);
adj[v[i]].pb(u[i]);
deg[u[i]]++;
deg[v[i]]++;
}
int st;
f0r(i,n){
if(deg[i] == 1)st = i;
}
vi path = {st};
queue<int>q;
q.push(st);
vb vis(n);
vis[st] = 1;
while(!q.empty()){
int node = q.front();
q.pop();
for(auto u : adj[node]){
if(!vis[u]){
vis[u] = 1;
q.push(u);
path.pb(u);
}
}
}
std::vector<int> labels(n);
for (int i = 0; i < n; i++) {
labels[path[i]] = i;
}
return labels;
}
int find_next_station(int s, int t, std::vector<int> c) {
for(auto u : c){
if(s > t && s > u)return u;
if(s < t && s < u)return u;
}
return c[0];
}
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