#include "fun.h"
#include <iostream>
#include <vector>
#include <queue>
using namespace std;
std::vector<int> createFunTour(int N, int Q) {
vector<int> g[501];
int dst[501][501], x, y;
bool u[501];
for (int i = 0; i < N; i++) {
for (int j = i + 1; j < N; j++) {
if (hoursRequired(i, j) == 1) {
g[i].push_back(j);
g[j].push_back(i);
}
}
}
for (int i = 0; i < N; i++) {
for (int j = 0; j < N; j++) u[j] = 0;
u[i] = 1;
queue<int> q;
q.push(i);
while (q.size()) {
x = q.front();
q.pop();
for (int y : g[x]) {
if (!u[y]) {
u[y] = 1;
q.push(y);
dst[i][y] = dst[i][x] + 1;
}
}
}
}
for (int i = 0; i < N; i++) u[i] = 0;
x = 0, y = 0;
for (int i = 0; i < N; i++) {
if (dst[0][i] > dst[0][x]) x = i;
}
for (int i = 0; i < N; i++) {
if (dst[x][i] > dst[x][y]) y = i;
}
vector<int> v = {x, y};
u[x] = u[y] = 1;
for (int i = 2; i < N; i++) {
int z = 0;
for (int j = 0; j < N; j++) if (!u[j] && dst[y][j] > dst[y][z]) z = j;
u[z] = 1;
y = z;
v.push_back(y);
}
return v;
}
/*
* max(deg[i]) <= 3
1. return dist(x, y)
2. root by x. return sz[y]
*/
