(Use c++ code please)

Problem 4. (20 pts total) A Twitter is an object where Tweet messages are stored. Consider the following class interface: class Twitter public: Twitter creates an empty Twitter void add (Tweet newmessage) adds new Tweets to the vector messages tweets Tweet get tweets (string subject); returns the Tweet with that subject private: vector Tweet messages i Using the class Tweet from Problem 4, provide solutions to the following: (a) Write the addtweet function which adds a new Tweet message (newmessage) to the vector messages. the member function gettweet which returns the frst message in the messages which has the subject equal to the parameter subject