Lnip3

#include <iostream>
#include <map>
#include <string>
#include <unordered_map>

int main() {
  std::unordered_map<std::string, int> m;
  m.insert({"Ivan", 5});
  m["Max"] = 5;
  m["Artyom"] = 55;
  std::cout << m["Ivan"] << std::endl;
  std::cout << m["Max"] << std::endl;
  std::cout << m["B"] << std::endl;
  std::cout << m.at("B") << std::endl;
  std::cout << m["A"] << std::endl;
  //  auto it = m.find("Stepa");
//  if (it != m.end()) {
//    it->second = 3;
//  }
  std::cout << m["Stepa"] << std::endl;

  std::map<std::string, int> mm;
  mm.insert({"Ivan", 5});
  mm["Max"] = 5;
  mm["Artyom"] = 55;
  std::cout << mm["Ivan"] << std::endl;
  std::cout << mm["Max"] << std::endl;
  std::cout << mm["B"] << std::endl;
  std::cout << mm["A"] << std::endl;
  //  auto it = m.find("Stepa");
//  if (it != m.end()) {
//    it->second = 3;
//  }
  std::cout << mm["Stepa"] << std::endl << std::endl;

  std::cout << "Unordered map:" << std::endl;
  for (auto& [key, value] : m) {
    std::cout << key << " " << value << std::endl;
  }
  std::cout << "Map:" << std::endl;
  for (auto& [key, value] : mm) {
    std::cout << key << " " << value << std::endl;
  }

  return 0;
}