카타 8급 Abbreviate a Two Word Name

1 C++

std::string abbrevName(std::string name)
{
  std::string ret = "";
  ret += toupper(name[0]);
  ret += '.';
  ret += toupper(name[name.find(' ')+1]);
  return ret;
}

std::string abbrevName(std::string name)
{
  std::string ret;
  ret.push_back(toupper(name[0]));
  ret.push_back('.');
  ret.push_back(toupper(name[name.find(' ') + 1] ));
  return ret;
}

std::string abbrevName(std::string name)
{
  std::string ret = "";
  ret += toupper(name[0]);
  ret += '.';
  ret += toupper(name[name.find_last_of(' ')+1]);
  return ret;
}

std::string abbrevName(std::string name)
{
  std::string ret;
  ret += toupper(name[0]);
  ret += '.';
  for(int i=1; i<name.length(); i++)
    if(name[i] == ' ') return ret += toupper(name[i+1]);
  return ret;
}