Design class Student to contain student name and birthday.

class Student { private: string name; string month; string day; string year; public: ... }; 

Design class Roster to contain a vector of students.

class Roster { private: vector students; public: ... }; 

In main() read a set of name and birthdays from the file students.in (until end-of-file) and populate students vector. Then iterate over the vector and print all students with current month (Apr) birthday.