Update profile.hpp

7-classes-and-objects/profile.hpp

@@ -1,17 +1,17 @@
+#include <string>
 #include <vector>
 
 class Profile {
-private:
-  std::string name;
-  int age;
-  std::string city;
-  std::string country;
-  std::string pronouns;
-  std::vector<std::string> hobbies;
+  private:
+    std::string name;
+    int age;
+    std::string city;
+    std::string country;
+    std::string pronouns;
+    std::vector<std::string> hobbies;
 
-public:
-  Profile(std::string new_name, int new_age, std::string new_city, std::string new_country, std::string new_pronouns = "they/them");
-  std::string view_profile();
-  void add_hobby(std::string new_hobby);
-
-};
+  public:
+    Profile(const std::string new_name, const int new_age, const std::string new_city, const std::string new_country, const std::string new_pronouns = "they/them");
+    void add_hobby(const std::string &new_hobby);
+    std::string view_profile();
+};