#include <iostream>
#include <vector>
#include <map>
 
struct Thing {
  Thing(const char* const name_) : m_name(name_) { std::cout << "created " << m_name << '\n'; }
  Thing(const Thing& rhs_) : m_name(rhs_.m_name) { std::cout << "copied " << m_name << '\n'; }
  Thing(Thing&& rhs_) : m_name(rhs_.m_name) { std::cout << "moved " << m_name << '\n'; rhs_.m_name = nullptr; }
  Thing& operator = (const Thing& rhs_) { m_name = rhs_.m_name; std::cout << "=& " << m_name; return *this; }
  Thing& operator = (Thing&& rhs_) { m_name = rhs_.m_name; std::cout << "=&& " << m_name; rhs_.m_name = nullptr; return *this; }
  ~Thing() { std::cout << "dtor(" << (m_name ? m_name : "null") << ")\n"; }
 
  const char* m_name;
};
int main() {
  std::map<int64_t, std::vector<Thing>> myMap { { 1, { "Hello", "World" } }, { 2, { "Eat", "Pizza" } } };
  std::cout << "for\n";
  for (auto kv : myMap) {
    std::cout << "for " << kv.first << " -> " << kv.second[0].m_name << "\n";
  }
  std::cout << "endfor\n";
}

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