#include "worldmap.h"
#include <bits/stdc++.h>
using namespace std;
template <typename T>
using v = vector<T>;
using pii = pair<int, int>;
#define rep(i, k, n) for (int i = k; i < n; i++)
v<int> euler;
v<bool> vis;
v<v<int>> adj;
void dfs(int n) {
vis[n] = true;
euler.push_back(n);
for (auto x : adj[n]) {
if (!vis[x]) {
dfs(x);
euler.push_back(n);
}
}
}
v<v<int>> ans;
void full(int i, int n) {
rep(j, 0, (int)ans.size()) {
ans[i][j] = n;
}
}
std::vector<std::vector<int>> create_map(int N, int M, std::vector<int> A, std::vector<int> B) {
adj.resize(N);
vis.assign(N, false);
rep(i, 0, M) {
int a = A[i];
int b = B[i];
adj[a].push_back(b);
adj[b].push_back(a);
}
dfs(0);
int n = euler.size();
ans.resize(n, v<int>(n, 0));
rep(i, 0, n) {
full(i, euler[i]);
}
return ans;
}
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