text: //customer.h
  #include<string>
  #include<vector>
  #include<memory>
  #include<stdlib.h>
  #include "checking_account.h"
  #include "savings_account.h"
  
  #ifndef CUSTOMER_H
  #define CUSTOMER_H
  
  class Customer
  {
  public:
      Customer(std::string n);
      std::string get_name() const {return name;}
      std::unique_ptr<BankAccount>& get_account (int index);
  private:
      std::vector<std::unique_ptr<BankAccount>> accounts;
      std::string name;
  };
  
  #endif
  