#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
const long long MAXN=1009;
long long sz[MAXN];
long long ans[MAXN];
bool vis[MAXN];
vector<int> edg[MAXN];
long long dfs(int start)
{
sz[start]=1;
vis[start]=1;
for(auto i:edg[start])
{
if(vis[i])continue;
sz[start]+=dfs(i);
}
return sz[start];
}
void solve(int start,bool b,int l,int r)
{
vis[start]=0;
if(b)
{
ans[start]=r;
r--;
}
else
{
ans[start]=l;
l++;
}
for(auto i:edg[start])
{
if(!vis[i])continue;
solve(i,!b,l,l+sz[i]-1);
l+=sz[i];
}
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v)
{
for(int i=0;i<n;i++)edg[i].clear();
std::vector<int> labels(n);
for(int i=0; i<n-1; i++)
{
edg[u[i]].push_back(v[i]);
edg[v[i]].push_back(u[i]);
}
dfs(0);
solve(0,1,0,n-1);
for(int i=0; i<n; i++)labels[i]=ans[i];
return labels;
}
int find_next_station(int s, int t, std::vector<int> c)
{
sort(c.begin(),c.end());
if(s<c[0])
{
if(t<s)return c[c.size()-1];
if(t>=c[c.size()-1])return c[c.size()-1];
for(int i=0; i<c.size()-1; i++)
{
if(t<=c[i])return c[i];
}
}
else
{
if(t>s)return c[0];
if(t<=c[0])return c[0];
for(int i=c.size()-1; i>0; i--)
{
if(t<=c[i])return c[i];
}
}
return c[0];
}
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