boilerplate.cpp

#include <bits/stdc++.h>
using namespace std;

// clang-format off

#define f first
#define s second
#define pb push_back
#define rep(i, begin, end)                                                     \
  for (__typeof(end) i = (begin) - ((begin) > (end));                          \
       i != (end) - ((begin) > (end)); i += 1 - 2 * ((begin) > (end)))
#define db(x) cout << '>' << #x << ':' << x << endl;
#define sz(x) ((int)(x).size())
#define newl cout << "\n"

#define ll long long int
#define vi vector<int>
#define vll vector<long long>
#define vvll vector<vll>
#define pll pair<long long, long long>

#define fast_io()                                                              \
  ios_base::sync_with_stdio(false);                                            \
  cin.tie(NULL);                                                               \
  cout.tie(NULL);

ll tc, n, m, k;

struct hash_pair {
  template <class T1, class T2> size_t operator()(const pair<T1, T2> &p) const {
    auto hash1 = hash<T1>{}(p.first);
    auto hash2 = hash<T2>{}(p.second);
    return hash1 ^ hash2;
  }
}; // unordered_map<pll, ll, hash_pair> hm;

// clang-format on
int main() {
  fast_io();
#ifndef ONLINE_JUDGE
  freopen("../input.txt", "r", stdin);
  freopen("../output.txt", "w", stdout);
#endif

  return 0;
}