C++ PROGRAM I HAVE INCLUDED ALL OF THE FILES BELOW. PLEASE MAKE SURE THAT PROGRAM RUNS CORRECTLY.

bag.h: http://pastebin.com/MCnFmZzF

bag.cpp: http://pastebin.com/r7skEXvn

bag_diff3.cpp: http://pastebin.com/MAJ5AZjK

1. A Different dynamic bag (50 points) For dynamic bag, implement the operators -- and - for the class These operators compute the difference between two bags. In summary bl-b2 results in a bag that has the elements of bl with the elements of b2 removed. For example, if bl has eight 4's in it and b2 has five 4's in it then bl-b2 has three 4's in it. o Ifb2 has more of an element than bl, it is not an error. The difference simply ends up with none of that element. o For example, if bl has five 4's in it and b2 has eight 4's in it then bl-b2 has no 4's in it. Implement-= as a member function and-as a non-member function (similar to += and +). Here are the two headers from bag.h: o void operator -(const bag &subtrahend); o bag operator- (const bag& bl, const bag & b2); o The program bag diff3.cpp provide a basic check of the two new operators