definition.cpp

#include "../template/const_value.cpp"
#include "../template/includes.cpp"

template <class edge_t> class graph_t {
  std::vector<std::vector<edge_t>> g;

public:
  using reference = std::vector<edge_t> &;
  using const_reference = const std::vector<edge_t> &;
  using iterator = typename std::vector<edge_t>::iterator;
  graph_t() : g(0) { ; }
  graph_t(int n) : g(n) { ; }
  int size() const { return g.size(); }
  void push_back(const std::vector<edge_t> &es) { g.push_back(es); }
  reference operator[](int x) { return g[x]; }
  const_reference operator[](int x) const { return g[x]; }
  iterator &begin() { return begin(g); }
  iterator &end() { return end(g); }
};