#include "longesttrip.h" #include <bits/stdc++.h> using namespace std; #define ll long long #define ff first #define ss second #define all(a) (a).begin(), (a).end() template<typename T> int len(T &a){return a.size();} vector<int> longest_trip(int n, int d) { if(d == 3){ vector<int> a(n); iota(all(a), 0); return a; } return vector<int>(n, 0); }