#include "worldmap.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define pii pair<int,int>
vector<int> ad[41],st;
set<pii> ss;
bool vs[41];
void dfs(int v){
vs[v]=1;
st.pb(v);
for(int u:ad[v]){
if(vs[u]){
if(!ss.count({u,v})){
ss.insert({u,v});
ss.insert({v,u});
st.pb(u);
st.pb(v);
}
}else{
ss.insert({u,v});
ss.insert({v,u});
dfs(u);
st.pb(v);
}
}
}
std::vector<std::vector<int>> create_map(int n, int m, std::vector<int> a, std::vector<int> b) {
for(int i=1;i<=n;i++){
ad[i].clear();
vs[i]=0;
}
ss.clear();
st.clear();
for(int i=0;i<m;i++){
ad[a[i]].pb(b[i]);
ad[b[i]].pb(a[i]);
}
dfs(1);
int sz=120;
vector<vector<int>> ans(sz,vector<int>(sz,1));
vector<pii> od;
for(int i=0;i<sz;i+=2){
if(i%4==0){
for(int j=0;j<sz;j++)od.pb({i,j});
if(i+1<sz)od.pb({i+1,sz-1});
}else{
for(int j=sz-1;j>-1;j--)od.pb({i,j});
if(i+1<sz)od.pb({i+1,0});
}
}
for(int i=0;i<st.size();i++){
ans[od[i].first][od[i].second]=st[i];
}
return ans;
}
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